Post on 19-Apr-2020
Construction BIM Specification
Construction BIM Specification BIM 1/30
Table of Contents
1 INTRODUCTION .................................................................................................................... 4
2 GENERAL REQUIREMENTS ..................................................................................................... 5
2.1 BIM Objectives .................................................................................................................... 5
2.2 AAHK BIM Documents ......................................................................................................... 6
2.3 BIM Level of Maturity .......................................................................................................... 7
2.4 BIM Uses .............................................................................................................................. 7
2.5 BIM Process ....................................................................................................................... 11
2.6 BIM Software ..................................................................................................................... 11
2.7 BIM Matrix, Level of Development Specifications and Level of Details ............................ 11
2.8 BIM File Naming and Templates ........................................................................................ 12
2.9 BIM Federation and Model Division .................................................................................. 12
2.10 Collaboration Management .............................................................................................. 13
2.11 Interfacing Management ................................................................................................... 13
2.12 Asset and Facility Data Requirements ............................................................................... 14
2.13 BIM Proficiency .................................................................................................................. 15
3 PROJECT-SPECIFIC BIM EXECUTION PLAN REQUIREMENTS ................................................... 16
3.1 Project Information ........................................................................................................... 16
3.2 BIM Uses ............................................................................................................................ 17
3.3 Project Software Uses ....................................................................................................... 17
3.4 BIM Matrix and Level of Development Specification ........................................................ 17
3.5 BIM Software and Templates............................................................................................. 17
3.6 Modelling Methodology and Corresponding Categories .................................................. 17
3.7 Model Naming ................................................................................................................... 18
3.8 Federation Map and Model Division ................................................................................. 18
3.9 Change Tracking and Upload Protocols ............................................................................. 18
3.10 Interface Management ...................................................................................................... 18
3.11 Quality Assurance (QA) Plan .............................................................................................. 18
4 CONSTRUCTION BIM SPECIFICATION ................................................................................... 19
4.1 Construction Change Management................................................................................... 19
4.2 Construction Method Simulation (CMS) ........................................................................... 20
Construction BIM Specification BIM 2/30
4.3 4D Model Simulation (4DMS) ............................................................................................ 20
4.4 Linking to Project Management Software for Progress Monitoring ................................. 21
4.5 Construction Stage BIM Model Update ............................................................................. 22
4.6 Trade-Specific Construction Software ............................................................................... 22
4.7 Construction BIM Deliverables .......................................................................................... 23
5 QC/QA REQUIREMENTS ...................................................................................................... 28
5.1 Model Archive ................................................................................................................... 28
5.2 QC/QA Checks ................................................................................................................... 28
Construction BIM Specification BIM 3/30
Appendix A Acronyms
Appendix C Part 1 – BIM Matrix*
Appendix C Part 2 – Level of Development (LOD)
Appendix D BIM Standard
The following appendices shall be provided upon contract award:
Appendix B BIM Uses*
Appendix E BIM Process Map
Appendix F BIM Checklist*
Appendix J AAHK AAMS Asset Code Specification (Please refer to the latest AAMS
Asset Code Specification provided by AAHK. If asset code is not found
in AAMS Asset Code Specification, please propose new asset code for
AAHK’s review and approval)
Appendix L Clash Matrix*
*Apart from hardcopies, editable files will also be provided for contract award
Construction BIM Specification BIM 4/30
1 Introduction
Airport Authority Hong Kong (AAHK) BIM Specification outlines minimum content
and process requirements, including the BIM Standard to be achieved and the
procedures and methods to be used and the expected level of details/development
of the BIM models.
Construction BIM Specification BIM 5/30
2 General Requirements
2.1 BIM Objectives
a) Airport Authority Hong Kong (AAHK) intends to integrate the Building
Information Modelling (BIM) process and deliverable into the organisational and
planning structure and take advantage of the data information created during
design and construction to enhance and feed into existing and future
facilities/operations processes to meet a common goal.
b) AAHK adopts BIM in order to:
Enhance design quality;
Achieve proper design coordination to ensure sufficiency of spatial provisions and eliminate clashes between design elements;
Verify buildability of major construction elements; and
Facilitate construction planning, improving efficiency of construction and avoiding delay, disruption and additional costs due to design errors, and thereby achieving project completion on time, within budget and to high quality standard.
c) AAHK’s projects typically involves multiple projects and disciplines. Each
project requires model coordination with the AAHK’s project management
team, after which cross-project and cross-discipline projects will go through
design coordination. As all projects have different goals and teams, a
customised BIM execution plan as a live document which may evolve as the
project progresses. To maximise the use of BIM, the entire process from
conception to as-built BIM shall be influenced by that end goal. All the team
members need to be aware of the downstream BIM uses and revise their inputs
into the model appropriately, all of which is established with a BIM execution
plan.
All AAHK projects are to utilise the BIM process for documentation and other uses
as defined herein. Some projects include:
Land Formation;
Airfield Works (Including Existing Runway Modification);
Third Runway Concourse (TRC) Building;
Automated People Mover System (APM), Baggage Handling System (BHS) and the Associated Tunnels and Ancillary Buildings;
T2 Expansion & Associated Infrastructure Works; and
Other Infrastructure and Facilities at Western and Eastern Support Area.
Fundamental to these goals is the base understanding that BIMs are not an after-
product from the design effort or construction effort. Models shall be the basis of
the design and construction documentation, and shall contain all information and
content that facilitates with interfacing collaboration and generates official
deliverables and drawings.
Construction BIM Specification BIM 6/30
d) Without limiting the generality of the above primary BIM objectives, the
following is a list of some particular BIM objectives that are to be achieved:
Resolving all spatial and coordination issues before completion of the detailed design;
Resolving design discrepancies, mistakes, conflicts and clashes before tendering;
Managing design changes to minimise adverse impact on the follow-on construction activities;
Achieving programme and construction safety by using BIM to analyse programme requirements and constructability;
Visualising the design elements in a true representation of the actual condition so as to facilitate design coordination and construction planning;
Identifying and resolving temporal interferences among the different elements;
Checking critical dimensions to ensure no spatial conflicts and verify the buildability of the design;
Linking BIMs with construction programme to demonstrate the sequence of the work and programme impacts of major construction activities;
Linking the BIMs into a virtual reality (VR) environment to replicate real life situation; and
Producing BIMs for facility management after project completion.
2.2 AAHK BIM Documents
Upon contract award, the following documents shall be provided as guidelines
which shall be strictly followed, or templates which can be used for project-specific
BIM execution plan:
BIM Specification (this document)
BIM Standard describes in detail quality of model and protocols of using the collaboration site to share works (in progress or deliverables) in context of all AAHK projects.
BIM Uses comprehensively lists BIM uses relevant to AAHK, and can be used to communicate and define project-specific BIM uses.
BIM Matrix and LOD Spec outlines basic known model elements in model categories applicable to AAHK, and can be used by Contractors to prepare their project-specific BIM execution plan.
BIM Checklist are used by Contractors, AAHK and AAHK-designated BIM Consultant for each upload to verify the model completeness and quality.
BIM Process Map illustrates the relationship between key documents provided by AAHK, BIM uses and deliverables in construction stage, which involve AAHK and Contractors for model review.
AAHK AAMS Asset Code Specification is provided for Contractors to embed AAHK Asset code into BIM models and facilitate Contractors to provide project-specific Asset code list for AAHK’s review and approval.
Construction BIM Specification BIM 7/30
BIM Clash Matrix contains the sub-disciplines which shall be used as a basis to conduct the clash detection and coordination by Contractors.
For AAHK’s 2D drawing requirements, AAHK CADD STANDARD governs 2D
drawing authoring, while 2D drawing naming protocols governs 2D drawing
naming. This Document references, compliments and shall not deviate from the
latest version of AAHK CADD STANDARD and 2D drawing number protocols.
2.3 BIM Level of Maturity
AAHK projects shall utilise a comprehensive BIM process. Contractors shall
coordinate efforts to provide, at a minimum, detailed design and construction up to
a “Level 2 BIM” maturity level as referred to in the BIM Maturity Diagram prepared
by Mervyn Richards and Mark Bew, defining Level 2 BIM as: “Federated file-based
electronic information with some automated connectivity.”
Under the premise of Level 2 BIM, Contractors shall follow Appendix D - BIM
Standard for BIM authoring and collaboration, and the latest version of AAHK
CADD STANDARD for 2D drawing production.
2.4 BIM Uses
Contractors shall implement required BIM uses listed below, as well as any
required in their respective Scope of Works (SOW). Contractors shall provide their
project-specific BIM execution plan and outline applicable BIM uses subject to
AAHK’s approval.
Construction BIM Specification BIM 8/30
The following is a list of the BIM uses applicable to the AAHK project in
Construction and Operations Stages, including all recognised components of a
comprehensive BIM process.
Required Uses () are mandatory for Contractors engaged with AAHK on AAHK projects. Any exceptions and exclusions shall be listed in project-specific BIM execution plan, subject to AAHK’s review and approval.
Optional Uses () are feasible uses of BIM technologies currently available and utilised on comparable projects. Contractors are encouraged to include them in project-specific BIM uses when appropriate, subject to AAHK’s review and approval.
Future Uses () are uses available but not yet widely used in the design and construction industry. AAHK and AAHK-designated BIM Consultant will periodically evaluate their relevance and feasibility.
Not Required (X) are uses not relevant or applicable to the particular project stage.
No BIM Uses Definition
Co
ns
tru
cti
on
Op
era
tio
n
1 Modelling, Coordination and Documentation
1.1 Existing Condition BIM from Survey or Other Data (e.g. Laser Scanning)
Increase “extend of model” by generating existing condition model that interfaces with or is affected by design or construction scope, where connectivity, design solution and/or conflict resolution are required. Record survey information such as NQAA code.
1.2 Design Authoring Model all elements up to appropriate and specific Level of Development according to Appendix C Part 1 – BIM Matrix.
X
1.3 2D Drawing Generation and Statutory Submission
Keep all model elements up to date and generate 2D drawings and relevant documents that are consistent with BIM models for WIP uploads and official deliverables directly from BIM. 2D drawings shall include HKSAR statutory submission documents. Models shall also be compliant with HKSAR 2D and 3D statutory submission requirements.
1.4 BIM Coordination Use BIM to conduct internal and external interdisciplinary and interface coordination, including but not limited to workshops with AAHK and other parties.
X
1.5 Clash Analysis and Detection
Conduct clash detection analysis and generate clash reports from BIM. Use BIM to conduct virtual walkthroughs and visual inspections in addition to the software’s automatic clash analysis.
X
1.6 Design Change Tracking
Keep a chronological record of options and design changes with BIM files.
1.7 SQ Process Log Site Query (SQ) issues; record changes if any. X
Construction BIM Specification BIM 9/30
No BIM Uses Definition
Co
ns
tru
cti
on
Op
era
tio
n
1.8 Model Record Store versions of BIMs, minimally corresponding to major changes, each WIP upload or contract deliverables locally, on collaboration site or AAHK-designated local servers.
1.9 Area Calculation and Scheduling
For all discipline BIM models, create schedules within the models for area and volume calculation, element counts, displaying relevant parameters in columns and other required quantity calculation according to project SOW.
1.10 Manufacturing / Digital Fabrication
Generate manufacturing specifications for elements that are not readily procurable, and tally quantity directly from BIM.
X
1.11 Site Safety Management
Conduct site safety analysis using BIM (e.g. loading, evacuation and other construction activity simulations). Log site safety data related to site safety in BIM.
X
1.12 Commissioning Documentation
Generate applicable documents required for the commissioning process from BIM files; prepare/export compatible native files for further simulation and analysis.
1.13 Record of As-Built Data
Create and verify BIM (As-built model) that correspond to the final built condition, which may be aided by methods including but not limited to laser scanning and field capturing. Record as-built quality-related information such as NQAA code.
2 Analysis
2.1 Wayfinding Analysis Visualise, assess and optimise location, clarity and feasibility of wayfinding system via BIM. In construction stage, use BIM to analyse and validate routing and signage options in conjunction with egress and safety analysis.
2.2 Sustainability Analysis (e.g. LEED,BEAM-Plus)
Analyse feasibility of green building criteria and generate required technical drawings, diagrams, tables and other physical or digital submittals for green building certification through BIM.
2.3 Structure Analysis Analyse structural integrity (strength, connectivity, sizing and impact to other disciplines) using BIM.
X
2.4 Leasing and Real Estate Financial Analysis
Analyse real estate financial performance such as NPV (net present value), IRR (Internal Rate of Return) and compare development options using data associated with leasable/sellable spaces and embedded in BIM.
X
3 Documentation, Visualisation and Simulation
Construction BIM Specification BIM 10/30
No BIM Uses Definition
Co
ns
tru
cti
on
Op
era
tio
n
3.1 3D Virtual Reality Ensure BIM models are ready to generate optimised base files for visual spatial immersive representation of virtual reality renderings for design review, sign-off, constituent engagement and other visual communication purposes, including but not limited to FBX and IFC formats.
3.2 4D Modelling & Simulation
Embed time data into model elements and create animated representation to illustrate project evolvement.
X
3.3 Construction Method Simulation
Simulate construction sequence based on particular construction method(s) used, and compare different construction methods' pros and cons.
X
3.4 5D Quantity Take-off Generate time-based quantity and cost data from BIM.
3.5 Safety Management Simulation
Use 4D model as a visual tool to further assess conditions and identify unsafe areas that might otherwise go unrealised prior to encountering them in the field.
3.6 Operation Continuity Simulation
Use 4D model to further reflect impact on daily required operation access and facility use. For example, creating envelopes and/or clear access paths for required GSE traffic or Sterile access corridors can be used to analyse potential impacts on stakeholders as well as construction personnel.
4 Operation Continuity
4.1 AAHK Asset Code Register
Input AAHK’s Asset information to the AAHK Asset fields of the BIM models at each project stage and align with AAHK Asset Code Register data format requirements.
4.2 Room Management and Tracking
Generate consolidated data schedules of area, element quantities and quantities by rooms.
5 Linking with Other Systems
5.1 Linking to Project Management Software or Construction Management System for Progress Monitoring
Summarise and monitor project progress using BIM via linking to project management software, or Monitor construction progress via linking BIM specifically to Construction Management System (e.g. Microsoft Project, Primavera P6, Synchro, A360 Field, etc.).
X
5.2 Linking to Airport Asset Management System (AAMS)
Provide data authored during Design phase and captured during Construction Quality Control to AAMS (Airport Asset Management System), AAHK-specific Computerised Maintenance Management System (CMMS) in a bi-directional flow.
Construction BIM Specification BIM 11/30
No BIM Uses Definition
Co
ns
tru
cti
on
Op
era
tio
n
5.3 Linking to Building Automation System (BAS)
Monitor and track performance of automated building functions (e.g. building services, underground utilities supply, and fire safety) via BIM.
X
5.4 Integration with GIS System
Exchange data between BIM and GIS.
2.5 BIM Process
Upon contract award, appendices shall be provided to Contractors as reference.
Using Appendix E - BIM Process Map as the basis, Contractors shall determine
project-specific workflows. Contractors shall propose project-specific BIM process
and outline deviations due to project needs.
2.6 BIM Software
Refer to Appendix D – BIM Standard.
2.7 BIM Matrix, Level of Development Specifications and Level of Details
2.7.1 BIM Matrix Content
Refer to Appendix C Part 1 – BIM Matrix.
2.7.2 Level of Development
Contractors shall use Appendix C Part 1 – BIM Matrix as a basis to comply with
minimum required LOD for corresponding project stages, and develop project-
specific BIM Matrix, adding project-specific model elements and strikethrough
irrelevant model categories and model elements. Any LOD exceptions shall be
approved by AAHK and documented in project-specific BIM execution plan.
Description of AAHK LOD can refer to Appendix C Part 1 – BIM Matrix’s
Introduction.
Further to graphic and non-graphic information specified in Appendix C Part 2 –
Level of Development (LOD), all elements shall incorporate necessary parametric
information timely, for statutory submissions and user sign-off throughout design
and construction stages.
In addition to geometric / graphic information, Contractors shall extract non-graphic information from the model by requests of AAHK to facilitate decision making process.
2.7.3 Levels of Details
AAHK’s fundamental requirement is to have model elements’ Levels of Details
align with the respective SOW. Subsequently, Contractors shall follow AAHK-
specific Level of Details requirements as stipulated in Chapters 4 and 5 mentioned
in this Document and Appendix D – BIM Standard.
Construction BIM Specification BIM 12/30
2.8 BIM File Naming and Templates
2.8.1 2D Drawings and BIM File Naming
BIM File Naming shall follow Appendix D - BIM Standard for the BIM File Naming.
The naming of 2D drawings extracted from BIMs shall follow the latest version of
AAHK CADD STANDARD.
2.8.2 Coordinate System
Contractors shall follow the Coordinate System, including shared coordinates,
survey point and project base point designated in Appendix D - BIM Standard.
For ongoing projects exempted from using AAHK BIM Template for individual
models, an overall federated model shall be created with AAHK BIM Template
following Appendix D - BIM Standard in lieu of transcribing models onto the
templates. These federated models with aligned coordinates shall be included in
every WIP upload and official BIM deliverable, and be used for future coordination
with other contracts to avoid misalignment.
2.8.3 BIM Template
Templates in AAHK-preferred file formats are available for Contractors to use after
contract award.
The Revit template contains information on AAHK grid, project base point, shared
coordinate, basic line settings and annotation families. Contractors shall use the
templates (when the file format is available) as a basis for modelling to ensure
compliance and straightforward interfacing and clash resolution with other projects.
In the event Contractors utilise additional BIM software for project-specific
purposes, Contractors are responsible for authoring BIM following Appendix D –
BIM Standard.
For ongoing projects exempted from using AAHK BIM Template for individual
models, Contractors shall align with AAHK standards and ensure all AAHK
parameters or attributes in BIM template are transferred into WIP and deliverable
models.
2.9 BIM Federation and Model Division
2.9.1 BIM Federation
BIM federation shall follow the overall principal of AAHK BIM federation outlined in
Appendix D - BIM Standard.
Upon AAHK’s request, Contractors shall provide federated model for different
works packages.
2.9.2 BIM Model Division
Appendix D - BIM Standard also defines the maximum model size for BIMs. Model
division is mandatory when models exceed the maximum size, which is common
starting the project.
Construction BIM Specification BIM 13/30
Contractors may consider vertical or horizontal divisions of BIMs, and are required
to propose a consistent model division strategy and corresponding project-specific
federation structure in project-specific BIM execution plan. As federation structure
may change during project’s life cycle, the federation map shall be updated and
accompany each file upload.
2.9.3 Model File List
Contractors shall provide initial model file list compliant to Appendix D - BIM
Standard, and update model file list as project evolves.
2.10 Collaboration Management
2.10.1 Common Data Environment (CDE) and Collaboration Site
Contractors shall setup and maintain their own BIM collaboration site for the
purposes of BIM files management and exchange with related parties, issues
tracking and resolution, model visualisation, and model version tracking. The
platform shall be accessible by AAHK and relevant project participants from other
contracts.
Contractors shall propose their project-specific collaboration sites which can fulfil
AAHK-required functionalities, and describe the access, structure, collaboration
protocols, and workflow in detail in project-specific BIM execution plan, which shall
be reviewed and approved by AAHK.
2.10.2 Change Tracking and Upload Protocols
Contractors shall specify project-specific upload intervals and file management
strategies in their respective project-specific BIM execution plan to be approved by
AAHK.
In addition to any automatic log or tracking functions the CDE’s may have,
Contractors shall provide concise descriptions of uploaded contents.
2.11 Interfacing Management
Contractors are responsible for BIM interfacing within its team with the Sub-
Contractors, as well as interfacing with project participants from other contracts.
2.11.1 Internal Clash Detection Procedures
Contractors shall run model spatial coordination analysis and clash detection
between disciplines within their respective SOW, to detect and resolve conflicts
between disciplines. Conflicts that require AAHK’s decision shall be highlighted and
escalated for discussion and decision.
Based on their SOW, Contractors shall draft an internal clash matrix between
disciplines and propose clash detection procedure and acceptable tolerances
within their own project in the project-specific BIM execution plan. Internal clash
detection shall be run in federated models, while external clash detection shall be
run in coordination models, using clash detection software (e.g. Navisworks), save
clash result in .nwc and .nwf formats, and include the clash result file as part of
WIP uploads or official deliverables.
Construction BIM Specification BIM 14/30
AAHK and AAHK-designated BIM Consultant will check federated model and clash
result files, and assess clash report completeness based on Appendix F - BIM
Checklist, and assess whether all necessary clash tests are included in federated
models. Clash detection results shall be delivered with each BIM deliverables.
2.11.2 External Interfacing Coordination
Based on AAHK projects’ overall federation structure and locations of design
projects/contracts, Contractors are required to identify interfacing projects and
include a clash matrix in project-specific BIM execution plan. Contractors shall
conduct clash detections, report findings and proposed resolutions, periodically
and prior to each official deliverable.
Typical interval between clash reports shall be in accordance with the SOW and
bi-weekly. Contractors shall propose, in their overall program / schedule, clash
report frequency and timing, and obtain AAHK’s approval to ensure the minimum
agreed clash analysis are run.
2.11.3 Clash Report
Clash reports shall contain, at the minimum, the following information:
List of projects, disciplines and revisions of models used for clash detection
Summaries of numbers and types of clashes
Location of each valid clash (e.g. level and grid)
Proposed solutions for major known clashes
Contractors shall also store views of major known clashes in AAHK-approved file
formats and upload as WIP, in preparation for coordination meetings.
2.11.4 Coordination Meetings
Interdisciplinary and inter-project coordination meetings shall be held monthly (at
the minimum) by Contractors, during which BIM coordination is an agenda item.
Contractors shall produce meeting minutes, list agenda items, and highlight issues
to be resolved and indicate responsible parties. Relevant AAHK representatives
and AAHK-designated BIM Consultant will join the meeting periodically to ensure
the necessary interim clash coordination are conducted and coordination meetings
are held regularly.
Contractors are responsible for BIM interfacing within its team with the Sub-
Contractors, as well as interfacing with project participants from other contracts.
2.12 Asset and Facility Data Requirements
Contractors shall follow “AAHK Asset Register Management Requirements” in
Appendix D - BIM Standard when managing data related to future facility
operations and asset management. Facility data management protocols include,
but are not limited to, entering and checking AAHK Asset fields in the correct format
throughout all project stages.
Construction BIM Specification BIM 15/30
At the end of construction stage, Contractors shall ensure completeness of AAHK
Asset codes, which contributes to the completeness of BIM deliverables.
Contractors shall ensure that the facility data in BIM is exchangeable between
construction BIM and AAHK’s AAMS.
2.13 BIM Proficiency
2.13.1 Minimum BIM Literacy Requirements
All parties doing business with AAHK that has any work scope in BIM shall be BIM-
literate, which is a prerequisite for working on AAHK’s projects with BIM scope.
Contractors are responsible for ensuring their own staff’s BIM literacy prior to
starting work on AAHK’s project, and provide continual on-the-job training to ensure
proficiency with the latest version of the BIM Specification required by AAHK.
Qualifications and experience may include:
Number of years of experiences on full BIM projects
Both construction capability and BIM fluency (for mid-level and above)
Professional Memberships (e.g. HKIBIM)
Industry-level certificates (Revit / AutoCAD Civil 3D Certificates issued by Autodesk)
Contractors shall submit CV of all members of the project BIM team for AAHK’s review and approval.
2.13.2 BIM Orientation and Kick-off Workshop
Project-specific orientations and kick-off workshops are required for all parties
doing business with AAHK with any current and future BIM scope, in order to
achieve maximum effect of incorporating BIM-based technologies and processes
into its overall lifecycle operations, management and development goals. The
orientation workshop shall focus specifically on how the attending parties would
engage to begin, develop and submit BIMs utilising AAHK-specific processes,
workflows and software, and is intended to be technical in nature. The orientation
workshop shall be completed at the Contractors’ kick-off meetings or within 30 days
of works commencement unless approved by AAHK. Contractors’ BIM team shall
attend the workshop. Contractors shall have the project BIM team including the
project BIM manager attending the workshop.
Construction BIM Specification BIM 16/30
3 Project-specific BIM Execution Plan Requirements
Contractors shall prepare project-specific BIM execution plan in accordance with
their corresponding contract, based on criteria listed in this Document and outlining
applicable BIM uses. Any deviations or exceptions from AAHK’s general
requirements shall be outlined and described in project-specific BIM execution
plan, subject to AAHK’s approval.
Individual project’s BIM execution plan should be drafted prior to the start of BIM
work in project stage. The first draft of the project-specific BIM execution plan shall
be submitted within 30 days of contract award or within 15 days after BIM kick-off
workshop has been conducted, whichever is earlier. Project-specific BIM execution
plan shall be Contractors’ official deliverable.
Project-specific BIM execution plan is a live document which may evolve as the
project progresses. Contractors are required to review project-specific BIM
execution plan every 3 months and update to reflect changes, including and not
limited to changes in: project schedule, project scope, (e.g. variations / additional
scope of works), personnel, federation structure, file list, modelling methodology,
additional model element category, and software upgrade. Updates may be in the
form of addendum or whole-document update with a revision sheet listing out
revision contents.
Revisions of project-specific BIM execution plan to AAHK shall be in PDF format,
accompany match Word (.docx) file with track changes, Contractors shall not alter
goals/objectives or reduce scope of project-specific BIM execution plan unless
requested by AAHK.
BIM development programme shall be provided in accordance with the master
programme for timely development of BIM model. For example, BIM model shall
be graphically and non-graphically developed before statutory submission for
generating relevant 2D documents. The BIM submission schedule shall distinguish
between WIP and Deliverables, and allow reasonable time for AAHK to review and
approve.
Contractors may reference this Document and its appendices (including Appendix
D - BIM Standard), and the latest version of AAHK CADD STANDARD. Contractors
shall highlight deviations from AAHK’s documents (if any) and provide
explanations.
Key sections to be included in project-specific BIM execution plan are as followed:
3.1 Project Information
Summarise project information, including:
Project Name, Number, Description and Duration
Project Team Structure, Roles & Responsibilities and Resourcing Plan: Team list and resourcing plan shall indicate key points of contact while specifying protocols for team member changes.
Construction BIM Specification BIM 17/30
Project Schedule, Programme, Key Milestones, Meeting Schedule, and Deliverables: BIM development programme shall be provided in accordance with the master programme for timely development of BIM model. For example, BIM model shall be graphically and non-graphically developed before statutory submission for generating relevant 2D documents. Before submission of deliverables, models shall be fully coordinated and with major clashes and hard clashes resolved. The BIM submission schedule shall distinguish between WIP and Deliverables, and allow reasonable time for AAHK to review and approve.
BIM Scope
Project close out procedures
3.2 BIM Uses
According to “BIM Use” within Chapter 2 of this Document, and AAHK BIM Uses
as a basis, develop project-specific BIM uses. Contractors shall propose project-
specific strategies to meet each BIM use.
3.3 Project Software Uses
List predominant software and additional software (verify with AAHK about the
latest preferred software prior to issuing the first draft). Provide explanation for
deviation and exceptions from Appendix D - BIM Standard for AAHK’s approval.
3.4 BIM Matrix and Level of Development Specification
With Appendix C Part 1 – BIM Matrix as a basis, align with AAHK standards and
develop Project-specific BIM Matrix. Provide LOD Specification explanation for
additional/special model elements.
3.5 BIM Software and Templates
BIM software used should comply with those defined in Appendix D - BIM Standard
unless the project nature does not fit AAHK-preferred software, or better software
options are commercially available to meet the requirements. If software other than
AAHK-preferred software is used, follow Appendix D - BIM Standard and list the
standards that can be followed within the software environment. Provide
exceptions, justifications and solutions for standards that cannot be followed within
the software environment.
Contractors shall ensure interoperability and no graphic and non-graphic data loss
between AAHK-preferred software and other approved software. The conversion
methodologies shall be specified in Project-specific BIM Execution Plan, including
but not limited to dedicated views and customised import / export settings.
3.6 Modelling Methodology and Corresponding Categories
Clearly state the creation method for every element created in the BIM, and verify
the model category is correct (e.g. Category parameter in Revit). In the event non-
AAHK-preferred software is used, the rationale, detailed process, interoperability
and data exchange methodology with AAHK-preferred software shall be provided
for AAHK review and approval.
List and description of existing data sources shall be provided for existing elements’
modelling methodology.
Construction BIM Specification BIM 18/30
See Appendix D – BIM Standard for details.
3.7 Model Naming
Outline deviations from Appendix D - BIM Standard’s “Model Naming”, if any, and
explain reasons of non-conformance and obtain AAHK’s approval.
3.8 Federation Map and Model Division
Diagram Project-specific Federation Map which illustrates how the models by level,
zone or discipline relate to each other and the master model. Provide explanation
for model division strategy (vertical or horizontal cut) based on project scope and
modelling content.
Provide initial model file list compliant to the naming convention stated in Appendix
D - BIM Standard. Update model file list as project evolves.
3.9 Change Tracking and Upload Protocols
Propose change tracking strategies, upload protocols (e.g. frequency, and any
deviations from AAHK’s requirements), and communication protocols upon
uploading.
3.10 Interface Management
Describe proposed collaboration and interface management strategies within the
project (between disciplines), and with other projects/contracts. Both internal and
external clash matrix shall be provided. Summarised clash report with clash
analysis and resolutions shall be included.
3.11 Quality Assurance (QA) Plan
Describe proposed QA processes, including but not limited to measures related to:
Change tracking
Model upload protocols
BIM deliverables
BIM Checklist
AAHK’s required attributes or fields entries tracking
Consistency between BIM models and 2D drawings
Construction BIM Specification BIM 19/30
4 Construction BIM Specification
Contractors may receive design BIM models for reference to understand design
intent. Subjected to the availability of the design BIM model, Contractors may use
design BIM model to develop their construction BIM model or start construction
BIM models based on the contract drawings. Contractors are responsible to rectify
and fix any errors, clashes and issues found from the design BIM model and finalise
the construction BIM model in compliance with this Document.
Construction BIM model shall, in nature, contain greater level of detail, for
additional purposes including but not limited to SQ process, construction-stage 4D
model simulation, construction method simulation, site safety management and
commissioning, while further preparing for future use of facility management in
operation stage.
4.1 Construction Change Management
Contractors shall indicate response protocol, timing, and incorporation of
responses into BIM files in their project-specific BIM execution plan.
Contractors are required to update and upload any changes originating from SQs,
Submittals and Bulletins that have changed their perspective work. Changes shall
be uploaded onto the collaboration site and send out a corresponding notice
indicating the changes and reasoning behind the change within no later than 10
business days from receipt of changes.
4.1.1 BIM Utilisation for SQ Process
The SQ template contains input boxes for confirmation of whether the response to
the SQ may require modification to BIM files. Modification may require geometric
model revision or information input.
The BIM issues item shall be a searchable item of the projects SQ log system.
Contractors are responsible for implementation of modifications to BIM files due to
SQ responses, and shall provide an update of the SQ Log to AAHK on a bi-weekly
basis. So long as change is approved by AAHK, both construction and model
revision shall be continued and executed in parallel.
4.1.2 BIM Utilisation for the Change Order or Bulletin Process
The process for quantifying and correcting clashes caused by a design change to
a signed off and in-progress area is as follows:
Contractors draft the revised 3D layout, minimising the clashes with other trades as much as possible. Revised layouts shall be drawn in an identifiable layer, labeled to match the respective bulletin.
Once the work is drafted, a clash report shall be prepared by the Contractor with all latest posts.
Construction BIM Specification BIM 20/30
Contractors shall label and audit and report the clashes that are local to the area affected by the change documents, similar to the analysis of detected vs. reported clashes in design stage clash reports.
Contractors shall maintain a change order request template, which provides input boxes to confirm whether the change order has potential to require modification to BIM files, which may include geometric model revision or information input.
BIM issues items shall be a searchable item of the projects Change Order Request log system.
Incorporating approved change orders into BIM files (when applicable) shall be completed in no later than 10 business days after execution of the change order.
4.2 Construction Method Simulation (CMS)
Contractors are required to perform construction method simulation to demonstrate
their construction method for critical construction activities and the congested
construction location (for example, critical R.C. details, building services layout and
etc.). The purpose of construction method simulation is to verify constructability
before construction and reduce risks.
4.2.1 Level of Detail for Construction Method Simulation
Proposed construction sequences, equipment and material being used,
construction site planning and arrangement are required in the construction
method simulation.
4.2.2 Production of Construction Method Simulation
Contractors shall produce construction method simulation in the form of digital
video or other formats approved by AAHK. The video should be shown to project
manager and relative engineers for approving construction methods at least half
month before construction.
The deliverable shall include animation (.mov, .mp4 or .mpeg, unless otherwise
specified by the project’s SOW), as well as all native files used to generate the
construction method simulation.
See Appendix D for details.
4.3 4D Model Simulation (4DMS)
4D model simulation is a construction visualisation tool that utilises time-related
information embedded in BIMs to demonstrate sequence and constructability. The
deliverable shall include animation (.mov, .mp4 or .mpeg, unless otherwise
specified by the project’s SOW), as well as all native files used to generate the
construction method simulation.
Contractors shall develop 4D simulation for visually demonstrating and
communicating proposed project construction programme and phasing. The model
shall include all major building systems and shall, based on and driven by the
approved construction programme, contain sufficient data to show sequential
construction in animation.
Construction BIM Specification BIM 21/30
The federated model with 4D data shall be submitted with the preliminary and
baseline programme submittals. AAHK mandates a suitable time interval for the
simulation. Continuously update programme information in the model so that
information provided is reflective of the project’s progress. Contractors shall obtain
AAHK’s approval of suitable time intervals ranging from daily to monthly, as 4D
simulation needs may evolve with project progression.
Contractor can propose optional use of BIM in 4D simulation (such as public safety
management, operational impact analysis and constructability logistics and
planning) in the BIM Execution Plan, subject to AAHK’s review and approval.
See Appendix D for details.
4.3.1 Frequency of 4D Simulation Submission
Contractors shall submit up-to-date 4D simulation model upon AAHK’s request.
The deliverable shall include animation as well as all native files used to generate
the 4D simulation.
4.3.2 Project Programme Data for 4D Simulation
Contractors’ project programme shall be linked into BIMs for 4D simulation. The
project programme should include the following information:
Provide construction activity sequences, including rough-in, finish, and phasing schedules for major elements of all models;
Indication of time condition of each model element (e.g. existing, to-be-constructed, to-be-demolished, completed);
Installation/ demolition and arrangement of construction plant and equipment;
Linkage between model elements and time (e.g. start time, finish time); and
Simulation of the construction sequencing and zones/construction joints that corresponds to the construction program’s breakdown structure.
Contractors shall refer to their SOW as agreed with AAHK for project-specific cost
and schedule requirements.
4.3.3 Commissioning Requirements
BIM may be used for commissioning. Commissioning is the process of assuring
that all systems and components of a building or industrial plant are designed,
installed, tested, operated, and maintained according to the operational
requirements of the owner or final client.
The commissioning data including but not limited to design intent, performance
criteria and operations data shall be recorded and/or linked to relevant BIMs as
commissioning occurs throughout the project. It shall be the Contractors’
responsibility to coordinate the information sources and integrate this information
into relevant models for transfer at the completion of the project.
4.4 Linking to Project Management Software for Progress Monitoring
AAHK may employ construction-stage project management or construction
management software/platforms (such as Aconex or Primavera). Contractors shall
Construction BIM Specification BIM 22/30
ensure the models’ data format are compliant to AAHK-specified software/platform,
and key information can be synchronised and exchanged between the model and
the software/platform.
Contractors shall submit a plan to AAHK for review prior to the start of construction.
The plan shall outline the process for concurrent as-built documentation.
Concurrency is mandated; methods for recording as-built information are left to the
discretion of Contractors subject to AAHK’s approval.
4.5 Construction Stage BIM Model Update
Contractors shall continually maintain an updated model and submit status monthly
report to ensure the model reflects the latest construction status and issues within
one month. An updated model with coherent primary systems (include, but may not
be limited to: structural framing, primary HVAC, primary fire protection, primary
electrical, ceiling grids layouts) is a payment requirement as stated in the contract.
Potential options for concurrency may include traditional methods of surveying and
model modification, or laser scanning of completed or partially completed primary
systems coordinated with the sequence of construction. Model changes maybe
integrated in SQ and change orders (CO) approval processes. Responsibility of
the modelling updates is determined by AAHK-approved Project-Specific BIM
Execution Plan.
Contractors shall setup a process of developing the record as-built model from
continuous updates of the construction model. All as-built information shall be
reconciled and included in the record model. This process shall be stated in the
project-specific BIM execution plan.
The BIM status of each Contractors shall be reported in a specific BIM section as
part of Contractors’ project progress report. In addition, Contractors shall prepare
a separate monthly BIM progress report, which shall include the following
information at the minimum:
Model progress percentage by discipline
Coordination progress percentage by discipline
Description of major progress
Model list and drawing generation list up to date
Known issues and strategies to resolve
Clash status
Progress as compared to BIM schedule
Other critical project-specific BIM issues
4.6 Trade-Specific Construction Software
Based on scope and tender documents, Contractors may propose to use trade-
specific construction software in addition to Tekla to increase benefit of using BIM.
The software shall be reviewed and approved by AAHK.
Construction BIM Specification BIM 23/30
In the event Contractors utilise trade-specific software, matching and updated 3D
CAD exports shall be available at all times for spatial coordination and clash
detection with other BIMs.
4.7 Construction BIM Deliverables
Refer to Appendix C Part 1 – BIM Matrix for details.
4.7.1 Construction Model
The construction model, as it is updated throughout the project duration, shall
represent in electronic format of the physical design and construction of the project,
and usable for the preparation of shop drawings, fabrication drawings, and
coordination.
Contractors may utilise technologies available on market to verify as-built 3D
conditions. For instance, Contractors may laser scan all the concealed elements,
(e.g. conduits, junction box) before pouring the concrete. The point cloud data shall
then be inserted into BIM models for easier review of actual conduit location.
Contractors shall provide as-built models after republish record documents. A final
record federation model should be saved as the final BIM deliverable. Contractors
should combine all the as-built models in federation model and handover to submit
to AAHK for approval.
Contractors shall ensure as-built models have mandatory information embedded
to be used for future facility management purpose, which shall be aligned with
Appendix D – BIM Standard.
4.7.2 Construction Model Element
In addition to the following model elements, Contractors shall cross reference the
project’s SOW and design BIM models (if available) to ensure all model elements
within scope are present in construction BIM model, unless exempt by AAHK.
Refer to Appendix C Part 1 – BIM Matrix for details.
In addition to geometric / graphic information, Contractors shall extract non-graphic
information from the model by requests of AAHK to facilitate decision making
process.
4.7.2.1 Architecture
Architecture models shall include all systems within architecture construction SOW,
including but not limited to exterior walls and curtain walls, floors, ceilings, roof
coverings and openings, exterior doors/windows/louvers, interior
doors/windows/louvers, stairs and ramps, elevators and escalators. Interior
features, if within SOW, such as caseworks, counters, fittings and furniture shall
also be modelled. Rooms, areas and relevant schedules shall be present in the
model with the final facility management-required numbering, coding or names as
confirmed by AAHK.
Construction BIM Specification BIM 24/30
Rooms shall have non-graphic information such as location (level and zone), room
name matching SoA, room number, room type, department, required area (sq m),
provided area (sq m), and fire rating.
Area calculations (e.g. tenancy areas, if any) shall be conducted in BIM; “Rentable
Area” area plan type shall be used, but shall follow AAHK calculation rules rather
than automatic generation.
For tenancy area calculation, use “Rentable Area” area plan type. Ensure rentable
areas are calculated following AAHK-specified tenancy area measurement method
and definition of area terminologies.
Any duplicate with other system models shall be removed (e.g. structural walls,
HVAC grills, electrical fittings). All installation details shall be modelled.
4.7.2.2 Structure
Structural models shall include all systems within structural construction SOW,
including but not limited to foundations and footings, slabs, floors, columns
structural walls, structural roof systems, rebar reinforcement and joints. Openings,
framings and supports of stairs, ramps, shafts and pits shall be modelled.
For steel construction, as-built elements’ steel material properties of such as
strength and ductility shall be parametrically included.
For concrete construction, as-built elements’ concrete grade information shall be
parametrically included.
4.7.2.3 Building Services
Building Services models shall include all systems involved in BS construction
SOW, include but not limited to MVAC system, power supply and distribution
system, lighting system, earthling and lighting system, cable containment and
equipment for airport system, hydraulic services system, and fire services system,
etc. Model elements shall cover the plant and equipment, manholes, pits,
chambers, generator, switchboard, security card readers, CCTV cameras, BMS
I/O panel, etc. The operation and maintenance space of an equipment shall be
included families for checking spatial requirements. All installation and fabrication
details (including but not limited to duct segment, maintenance space, confirmed
hanger and support etc.) shall be modelled.
4.7.2.4 Underground Utilities
Underground Utilities model shall include all systems within the SOW, including but
not limited to seawater supply systems, sewerage/foul water systems, grey water
collection and treatment systems, potable water and fire hydrant systems, irrigation
systems, airfield ground lighting systems, gas supply systems, power supply and
distribution systems, storm water drainage and oil separation systems,
telecommunication services systems, underground cable duct/tunnel/pit system for
power, earthing and telecommunications, street lighting system, aviation fuel
hydrant system, associated automated control and monitoring systems, street
lighting systems, and etc.
Construction BIM Specification BIM 25/30
In the underground utilities model, reference alignment and ground surface are
required for each system. Contractors shall provide AAHK required views, including
but not limited to 2D plan views, profile views, schedules and section views for all
systems. These 2D views shall contain required annotations and notes for all
elements and can be used for generating 2D drawing sheets which shall align with
the latest version of AAHK CADD STANDARD.
In the underground utilities models, Contractors shall provide different object styles
and label styles for presenting underground utilities model elements as required by
AAHK.
Contractors shall export the underground utilities model to ACSII format.
Information in the ACSII file shall including but not limited to manhole coordinate,
manhole ID, draw pit ID, gully ID, type, top level, bottom level, invert level, and
outlet level.
4.7.2.5 Civil Features
Contractors shall provide all civil feature models, including but not limited to pillar
box, fire hydrant, planter, road signage, airfield facilities, anchor and road lighting,
with parameters intact (e.g. coordinate, elevation, type). The coordinate shall be
set to the centroid of civil features.
In the civil feature models, Contractors shall provide AAHK required views,
including but not limited to 2D plan views, profile views, schedules and section
views. These 2D views shall contain required annotations and notes for all
elements and can be used for generating 2D drawing sheets which shall align with
the latest version of AAHK CADD STANDARD.
Contractors shall export the civil features model to ACSII format.
4.7.2.6 Road Features
Contractors shall provide alignments and surfaces for road features, including but
not limited to runways, pavement, corridors, viaducts, and tunnels. Native models
shall contain design parameters.
In the road models, Contractors shall provide AAHK required views, including but
not limited to 2D plan views, profile views, schedules, and section views. These 2D
views shall contain required annotations and notes for all elements and can be
used for generating 2D drawing sheets which shall align with the latest version of
AAHK CADD STANDARD.
Contractors shall also include cross sections/assemblies in road model.
4.7.2.7 Topography Surface
Contractors shall provide the digital terrain model (DTM) for the topography
surface, including but not limited to site formation, road features, natural slope,
artificial slope, seabed surface, and geotechnical features.
In the topography surface models, Contractors shall provide AAHK required views,
including but not limited to 2D plan views, section views, schedules and etc. These
Construction BIM Specification BIM 26/30
2D views shall contain required annotations and notes for all elements and can be
used for generating 2D drawing sheets which shall align with the latest version of
AAHK CADD STANDARD.
In the topography surface models, Contractors shall provide AAHK required
surface styles and label styles for presenting surface model. The surface object
shall contain AAHK required description of the surface, including but not limited to
full name of the surface object, source data file name, project stage and etc.
Contractors shall export the DTM to the point data in grid format. Half (0.5) meter
grid shall be used.
4.7.2.8 Ground Investigation Data
Contractors shall provide ground investigation data in verified AGS format and
append to the site model for reference.
4.7.2.9 Geotechnical
Contractors shall provide the geotechnical model of soil layers, including but not
limited to seabed, fill, marine deposits, alluvium, colluvium, completely and highly
decomposed granite, bed rock and etc. The 3D borehole stick models are also
included. These geotechnical models shall be generated from the verified
geotechnical investigation file e.g. AGS.
In the geotechnical models, Contractors shall provide AAHK required views,
including but not limited to 2D plan views, profile views, schedules and section
views. These 2D views shall contain required annotations and notes for all
elements and can be used for generating 2D drawing sheets which shall align with
the latest version of AAHK CADD STANDARD.
4.7.3 Final Construction BIM Deliverables
Final version of Project-Specific BIM Execution Plan
Construction stage Project-Specific BIM Execution Plan addendum (if any)
Federation map revision (if any)
As-built BIM at LOD 400 including built-in AAHK Asset fields
O&M manual
Simulation files (native files and exported animation) (if any)
List of submitted files
Clash analysis report with summaries and findings
Final error-free clash report
BIM deliverables Checklist
Contractors shall ensure the final construction BIM model is consistent with all the
submitted 2D drawings, non-graphic information, reports, technical notes and
relevant documents.
Construction BIM Specification BIM 27/30
4.7.4 Verified As-built BIM
Verified as-built models are the models that have been verified by the AAHK’s
appointed parties, and served as the final record matching the physical condition
of the project at the moment of project closeout.
The as-built models must be proofed that it is aligned with the survey as-built
records.
Verified as-built BIM shall be LOD 500. Contractors shall submit verified as-built
models integrated with O&M manual and NQAA data per project closeout
requirements.
Construction BIM Specification BIM 28/30
5 QC/QA Requirements
5.1 Model Archive
Contractors shall maintain their own model archives separate from collaboration
site, for the duration of the project.
5.2 QC/QA Checks
Contractors are responsible for initiating and continuously conducting Quality
Control (QC) / Quality Assurance (QA) under AAHK’s audit activities. Contractors
are required to comply with QC/QA protocols set forth by AAHK in this Document,
as well as specific requirements in each project’s SOW.
All field-captured QC/QA data including but not limited to performance criteria and
operations data shall be recorded and/or linked to BIMs as QC/QA occurs
throughout the project. Contractors are responsible for coordinating the information
sources and integrating the information into the models for transfer at the
completion of their respective scope.
Contractors are required to submit BIMs periodically, accompanied by Appendix F
- BIM Checklist which shall be filled out by Contractors. AAHK and AAHK-
designated BIM Consultant shall check the conformance of models to their
accompanying Checklists, or rejection and send back to Contractors if significant
non-conformance occurs.
5.2.1 Model-Related Documentation Check
Model-related documentation checks verify the sufficiency of documents including
federation map, model and drawing register list to ensure:
The latest revision is provided;
Compliance with AAHK’s overall BIM Project Execution Plan; and
Completeness of items that needs to be included within these documents.
5.2.2 Model Compliance Check
Model compliance checks verify the compliance of the models:
Format, such as software version and extension;
Naming, such as naming of the files and their corresponding folders;
General settings, such as grid, survey point, project base point, shared coordinate and coordinate system, units, colour, shared parameters, attributes, reference links;
Consistency of 2D information generated from BIM model.
5.2.3 Model Quality Check
Model quality checks verify the quality of the models:
General housekeeping, such as cleanness, flags links, unpurged elements and unused views;
Construction BIM Specification BIM 29/30
Visual check, such as missing elements, discontinuous elements or disconnected system, overlapping elements, flying objects or misplacement and clashes.
5.2.4 Project-specific BIM Execution Plan Check
Project-specific BIM Execution Plan checks verify the content and quality of
Project-specific BIM Execution Plan authored by Contractors, including:
Compliance to this Document and other requirements;
Sufficiently address BIM work scope, BIM uses and methodologies;
Model and process management internally and for collaboration; and
Model quality, LOD and quality control methodology.
5.2.5 Clash Report Check
Clash report checks verify the quality of clash reports:
Clash detection model quality and completeness, to ensure that the agreed process is followed and complete with internal clashes, interfacing parties, hard and soft clashes, with the results grouped;
Clash summary report quality, including summary, clash names, clash distance, solution (both internal and interfacing);
Simulation check, including checking of 4D Simulation, Construction Simulation and other Simulations.
Construction BIM Specification BIM 30/30
Construction BIM Specification
Appendix A
APPENDIX A TO
APPENDIX J
Contract T18W008 PS AJ A 1/3 (Addendum No.1) AA 07/12/18
Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix A
2D Two-dimensional space (X and Y coordinates)
3D Three-dimensional space; in the context of BIM, a representation of a
facility/asset in three dimensions (X, Y and Z coordinates)
3RS Three Runway System at the Hong Kong International Airport
4D
BIM model developed by addition of time dimension to a 3D model; also
referred to as 4D simulation or 4D planning
4DMS 4D Model Simulation
5D Cost Estimation in addition to 4D
AAHK Airport Authority Hong Kong
AAHK CADD
Standard
Airport Authority CADD Standard for AutoCAD and Microstation
AAMS Airport Asset Management System
AB As-Built Stage
ABHS AECOM BIM Healthy Start
ABWF Architectural and Builder's Works and Finishes
AIA The American Institute of Architects BIMFORUM Level of Development
Specification
AIM Asset Information Management
APM Automated People Mover System
AUT Model Author
BAS Building Automation System
BHS Baggage Handling System
BIM Building Information Modelling or Building Information Model
CAD Computer Aided Design
CADD Computer-Aided Design & Drafting
CAT Category Code for BIM Matrix Model Elements
CBWD Combined Builder’s Works Drawings
CDE Common Data Environment
CF Concept, Feasibility, Planning Stage
CIC HK Construction Industry Council Hong Kong
COBie Construction Operations Building Information Exchange
CMMS Computerised Maintenance Management System
CMS Construction Method Simulation
CSD Combined Services Drawings
CT Construction Stage
DC Design Consultant
APPENDIX A TO
APPENDIX J
Contract T18W008 PS AJ A 2/3 (Addendum No.1) AA 07/12/18
Primary Sorter Replacement Works for Baggage Handling System Particular Specification – Appendix J – Appendix A
DD Detailed Design Stage
DIA Denver International Airport
ELS Excavation and Lateral Support
FIS Federal Inspection Services
FM Facility Management
GBP General Building Plan
GIS Geographic Information System
HKIBIM Hong Kong Institute of Building Information Modelling
HKPD Hong Kong Principal Datum
IAF International Arrivals Facility
IFC Industry Foundation Class
IMS Integrated Management System
KPI Key Performance Index
LOD Level of Development
NDA Non-Disclosure Agreement
NQAA Notification of Quality Assurance Activity
O&M Operation and Management
PDS Project Delivery System
PIM Project Information Model
PM/CM Project Management/ Construction Management
PXP BIM Execution Plan
QA Quality Assurance
QMS Quality Management System
RFP Request For Proposal
ROI Return Of Investment
RtC Response To Comments
SD Schematic Design Stage
SFO San Francisco International Airport
SMF Silos Maintenance Facility
SOS Scope of Service
SOW Scope of Works
SQ Site Query
SSI Sensitive Security Information
T2 Terminal 2
TRC Third Runway Concourse
APPENDIX A TO
APPENDIX J
Contract T18W008 PS AJ A 3/3 (Addendum No.1) AA 07/12/18
Primary Sorter Replacement Works for Baggage Handling System Particular Specification – Appendix J – Appendix A
TSD or TS AAHK’s Technical Services Department
UOM Unit of Measure
VDI Virtual Desktop Infrastructure
WC Contractor or Working Contractor
Construction BIM Specification
Appendix C1
1 Site Model
RGB No. CT AB
aTopography (existing site and
surrounding land use) m
2 TOP 132,132,132 400 500 N/A TIN surface
b Topography (site formation) m2 SIT 0,255,255 400 500 N/A Corridor, TIN surface
c Natural slope m2 NSL 76,38,38 400 500 N/A TIN surface
d Artificial slope m2 ASL 63,127,127 400 500 N/A Corridor, TIN surface
e Flexible barrier m/No. FBR 255,127,127 400 500 Generic Models Point/Corridor
f Rigid barrier m / m³ RBR 255,191,127 400 500 Generic Models Corridor
g Retaining wall m / m³ RET 233,255,127 400 500 Structural Foundations Corridor
hMassing model of adjacent
areas or surrounding buildings - SUR 214,214,214 400 500 Mass N/A
i Geological model m2 GEO 400 500 N/A TIN surface
i.1 Seabed m2 SBD 206,237,237 400 500 N/A TIN surface
i.2 Fill m2 FLL 183,146,36 400 500 N/A TIN surface
i.3 Marine deposits m2 MAD 140,200,247 400 500 N/A TIN surface
i.4 Alluvium m2 ALL 255,255,182 400 500 N/A TIN surface
i.5 Colluvium m2 COL 204,204,255 400 500 N/A TIN surface
i.6 Completely and highly
decomposed granitem
2 HDG255,218,217
400 500 N/A TIN surface
i.7 Bedrock m2 BRK 231,157,157 400 500 N/A TIN surface
jPavement (carriageway,
footpath, cycle track) m / m³ PAV 159,255,127 400 500 N/A Corridor
k Noise barrier m2 NSB 127,191,255 400 500 Generic Models Corridor
l Planter m/No. PTR 159,127,255 400 500 Generic Models Point
m Bollard No. BOL 153,76,76 400 500 Generic Models Point
n Phone booth No. PHB 153,114,76 400 500 Generic Models Point
o Signage No. SGN 153,153,76 400 500 Generic Models Point
p Security fence - Concrete wall m / m³ FEW 204,153,255 400 500 Walls Corridor
qSecurity fence - Concrete
foundationm³ FEF 204,153,255 400 500 Structural Foundations Corridor / Point
r Security fence - Wire mesh m2 FEM 169,208,142 400 500 Mass Corridor
s Security Fence - Access gate No. FEG 204, 178, 102 400 500 Doors Point
tSurface channel, slot channel,
external drainage m EDR Default 400 500 N/A Pipe, Structure, Corridor
u Box culvert No. CUL Default 400 500Walls / Floors / Structural
FoundationsCorridor
v Nullah No. NUL Default 400 500Walls / Floors / Structural
FoundationsCorridor
UOMColour LOD
Model ElementsRequired
(yes/no)
CAT
CodeAUT Revit Category RemarksCivil 3D Object Type
C1 1/23
APPENDIX C1
2 Architecture Model
RGB No. CT AB
a Building massing model m2 MAS 210,210,210 400 500 Mass N/A
bRoom, space, corridor, plant
and equipment room m
2 SPA 210,210,210 400 500 Rooms N/A
c Elevator shaft space - ESS 210,210,210 400 500 Mass N/A
d Floor, slab, ramp, roof m2 FLR 210,210,210 400 500
d1-Floor, slab: Floors ;
d2-Ramp: Ramps ;
d3-Roof: Roofs
N/A
eFeature roof, sloped roof
covering systemm
2 FOO 210,210,210 400 500 Roofs N/A
f Basic structural column & wall - ACL 255,255,204 400 500
e1-Basic architectural
column: Columns;
e2-Basic architectural
wall: Walls.
N/A
g Basic structural beam & framing - ABS 255,255,204 400 500 Structural Framing N/A
h Exterior wall m2 EWL 210,210,210 400 500 Walls N/A
iInterior wall / partition / non-
structural wall m
2 IWL 255,191,127 400 500 Walls N/A
jCurtain wall, including shading
devices m
2 CTM 127,255,255 400 500 Walls N/A
k Precast façade, cladding m2 CLD 191,127,255 400 500 Walls / Curtain Systems N/A
l Door (exterior and interior) No. DOR 204,178,102 400 500 Doors N/A
m Window No. WDW 127,255,255 400 500 Windows N/A
n
Louver, decorative louver,
sunshading & other
architectural feathers
No. LOU 210,210,210 400 500 Windows N/A
o Skylight No. SKY 127,255,255 400 500 Windows N/A
p Ceiling: Exterior m2 CLE 210,210,210 400 500 Ceilings N/A
q Ceiling: Interior m2 CLI 255,255,255 400 500 Ceilings N/A
r Stairs, steps m2 AST 210,210,210 400 500 Stairs N/A
sRailing, balustrade, handrail,
guardrail No. BAL 210,210,210 400 500 Railings N/A
tAccess ladder, catwalk,
maintenance platform No. LAD 210,210,210 400 500 Specialty Equipment / Site N/A
u Smoke vent m SMV 255,127,223 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
v Fire shutter No. FST 255,0,0 400 500 Doors N/A
wInternal landscape (hardware
only)- ILA 0,255,0 400 500 Site / Topography N/A
x Signage, direction No. SGD 210,210,210 400 500 Parking / Site N/A
y Flight information display No. FID 210,210,210 400 500 Parking / Site N/A
UOMModel ElementsColour
RemarksRequired
(yes/no)
CAT
CodeAUT
LODRevit Categories Civil 3D Object Type
C1 2/23
APPENDIX C1
zCheck-in counter, transfer
counter, kioskNo. BFU 210,210,210 400 500 Specialty Equipment N/A
aa Building movement joint - BMJ 210,210,210 400 500 Structural Connections N/A
ab Building maintenance unit No. BMU 210,210,210 400 500 Specialty Equipment N/A
ac
Furniture, fixtures & fittings,
including desks, workstations,
casework, cabinets, appliances,
loose Equipment
No. FUR Default 400 500 Furniture N/A
ad Fire hood/enclosure No. FEN 255,0,0 400 500 Specialty Equipment N/A
ae Smoke curtain or barrier No. SBA 255,0,0 400 500 Specialty Equipment N/A
af Sports Equipment No. SST Default 400 500 Furniture N/A
ag Planter Cladding Panels No. PCP Default 400 500 Walls / Balusters N/A
ah Means of Egress m MOE Default 400 500 Generic Model / Mass N/A
aiDynamic envelope in
architecture model- ADE 240,180,210 400 500 Mass N/A
C1 3/23
APPENDIX C1
3 Structure Model
RGB No. CT AB
Foundation (pile) m Structural Foundations N/A
Foundation (pile cap) m³ Structural Foundations N/A
Foundation (tie/ground beam) m³ Structural Framing N/A
Foundation (footing) m³ Structural Foundations N/A
b Diaphragm wall, retaining wall m³ DWL 204,153,255 400 500Walls / Structural
FoundationsN/A
Excavation m³ Topography TIN surface, Corridor
Lateral stability system (vertical
support)ton Structure Columns N/A
Lateral stability system (lateral
support)ton Structural Framing N/A
Concrete beam m³ N/A
Steel beam, hanger ton N/A
Concrete structural column,
post m³ N/A
Steel structural column, post ton N/A
f Structural wall m³ SWL 0,76,38 400 500 Walls N/A
Slab, floor m³ Floors N/A
Ramp m³Generic Model, Floor,
RampsN/A
Roof m³ Roofs N/A
Transfer structure (transfer
plate) m³ Floors N/A
Transfer structure (truss) tonStructural Trusses /
Structural FramingN/A
Assembled stairs ton N/A
Monolithic stairs m³ N/A
Precast stairs m³ N/A
j Bracing Ton BRA 128,0,0 400 500 Structural Framing N/A
kTemporary work, temporary
structure, platforms Ton TMW
128,128,128
(50% Trans)400 500
Structure Columns /
Structural Connections /
Structural Foundations /
Structural Framing /
Structural Stiffeners
N/A
lTunnel structure (tunnel box,
subway, utilities tunnel)m³ TUN 128,128,128 400 500
Walls / Floors / Structural
FoundationsCorridor
Revit Categories
ELS
STE
500
Stairs
400 500
400
204,153,255
500
i
UOM
c
Model ElementsRequired
(yes/no)
CAT
CodeAUT
400 500
Colour LOD
SFO 400 500
BEM
400 500
128,128,128
Structural Framing
Structural Columns
d
a
128,0,0
Remarks
SCL 128,128,128
Civil 3D Object Type
h TRS 128,128,128 400 500
SLA 128,128,128g
128,128,128
e
400
C1 4/23
APPENDIX C1
m Structural Steel Ton STS 128,0,0 400 500
Structure, Columns /
Structural, Connections /
Structural, Foundations /
Structural, Framing /
Structural, Stiffeners
N/A
n Structural Steel Roof Ton SSR 128,0,0 400 500
Structure, Columns /
Structural, Connections /
Structural, Foundations /
Structural, Framing /
Structural, Stiffeners
N/A
o ABWF Structure Ton ABW 128,0,0 400 500
Structure, Columns /
Structural, Connections /
Structural, Foundations /
Structural, Framing /
Structural, Stiffeners
N/A
p Rebar No. REB 64,64,64 400 500 Structural Rebar N/A
qDynamic envelope in structure
model- SDE 240,180,210 400 500 Mass N/A
C1 5/23
APPENDIX C1
4 Mechanical Ventilation & Air Conditioning Model
RGB No. CT AB
a Supply air duct m / No. SAD 51,204,204 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
b Fresh air duct m / No. FAD 51,204,204 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
c Exhaust (extract) air duct m / No. EAD 51,204,204 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
d Return air duct m / No. RAD 51,204,204 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
e Transfer air duct m / No. TAD 51,204,204 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
f Fan No. FAN 51,204,204 400 500 Mechanical Equipment N/A
gDiffuser, air-boot, air grill, air
filter, register No. AIR 51,204,204 400 500 Air Terminals N/A
h Damper No. DAM 51,204,204 400 500 Duct Accessories N/A
i Fan coil unit No. FCU 51,204,204 400 500 Mechanical Equipment N/A
j Air handling unit No. AHU 51,204,204 400 500 Mechanical Equipment N/A
k Chiller plant unit No. CHL 51,204,204 400 500 Mechanical Equipment N/A
l Variable refrigerant volume unit No. VRV 0,176,240 400 500 Mechanical Equipment N/A
m Cooling tower No. COT 0,176,240 400 500 Mechanical Equipment N/A
nSplit-type indoor & outdoor air
conditioning unit No. SAC 0,176,240 400 500 Mechanical Equipment N/A
o Chilled water supply pipe m CWS 0,176,240 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
p Chilled water return pipe m CWR 0,176,240 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
q Condensate drain pipe m CDP 0,176,240 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
rVentilation / air conditioning
control system for FSD: airsideNo. VAI 51,204,204 400 500 Mechanical Equipment N/A
s
Ventilation / air conditioning
control system for FSD:
waterside
No. VWS 0,176,240 400 500 Mechanical Equipment N/A
t Insulation m2 INS 210,210,210 400 500
Duct Insulations, Pipe
InsulationsN/A
Please apply 50%
transparency to
reveal the colour of
insulated MEP
objects
u Condensing water supply pipe m CDW 0,255,0 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
Revit Categories
Other MVAC
Ductwork
Civil 3D Object TypeAUTLODColour
Model ElementsRequired
(yes/no)
CAT
CodeRemarksUOM
C1 6/23
APPENDIX C1
v Condensing water return pipe m CDR 0,255,0 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
w Sea water cooling supply pipe m SWS 0,176,240 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
x Sea water cooling return pipe m SWR 0,176,240 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
y Refrigerant pipe m RFP 0,176,240 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
z Primary air unit No. PAU 0,176,240 400 500 Mechanical Equipment N/A
aa
Chiller water pump, chilled
water pump, cooling water
pump
No. MPP 0,176,240 400 500 Mechanical Equipment N/A
ab MCC/ LCP for MVAC No. MCP 0,176,240 400 500 Electrical Equipment N/A
ac Smoke extraction system No. SED 255,0,0 400 500Ducts, Duct Fittings, Duct
AccessoriesN/A
ad Gas detection system No. GDS 255,0,0 400 500 Electrical Equipment N/A
C1 7/23
APPENDIX C1
aeGas extraction system including
fan, ductworks, damperNo. GES 255,0,0 400 500
Fan - Mechanical
Equipment;
Ductworks - Ducts, Duct
Fittings and Duct
Accessories;
Damper - Duct
Accessories;
N/A
af Air Compressor No. AIC 0,176,240 400 500 Mechanical Equipment N/A
ag Air Receiver No. ARE 0,176,240 400 500 Mechanical Equipment N/A
ah Compressed air pipe No. CAP 51,204,204 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
ai Variable control damper No. VCD 51,204,204 400 500 Duct Accessories N/A
aj Fire damper No. FDP 255,0,0 400 500 Duct Accessories N/A
akMotorised smoke and fire
damperNo. MSF 51,204,204 400 500 Duct Accessories N/A
al Silencer No. SIL 51,204,204 400 500 Duct Accessories N/A
am Access panel No. APN 51,204,204 400 500 Electrical Equipment N/A
an Tunnel ventilation fan No. TVF 51,204,204 400 500 Mechanical Equipment N/A
ao Tunnel jet fan No. TJF 51,204,204 400 500 Mechanical Equipment N/A
ap Air quality monitoring system No. AQM 51,204,204 400 500 Mechanical Equipment N/A
aqDynamic envelope in MVAC
model- MDE 240,180,210 400 500 Mass N/A
C1 8/23
APPENDIX C1
5 Hydraulic (Plumbing, Water Supply)
RGB No. CT AB
a Fresh water piping m FWP 0,255,255 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
b Flush water piping m FLW 0,153,0 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
c Gas piping m GAS 198,89,17 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
d Valve No. VLV By System 400 500 Pipe Fittings N/A
e Water storage tank No. WAT By System 400 500 Mechanical Equipment N/A
f Pressure vessel No. PRV By System 400 500 Mechanical Equipment N/A
g Sink, washbasin No. SNK By System 400 500 Plumbing Fixtures N/A
h Tap, faucet No. TAP By System 400 500 Plumbing Fixtures N/A
i Water meter No. WMT By System 400 500 Pipe Accessories N/A
j Pump No. PMP By System 400 500 Mechanical Equipment N/A
k Calorifer No. CAL By System 400 500 Mechanical Equipment N/A
l Boiler No. BLR By System 400 500 Mechanical Equipment N/A
m Water storage heater No. WSH By System 400 500 Mechanical Equipment N/A
n Cleansing water piping m CWP 0,255,255 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
o MCC/LCP for plumbing & water No. MPW 0,255,255 400 500 Electrical Equipment N/A
pDynamic envelope in plumbing
& water supply model- PDE 240,180,210 400 500 Mass N/A
Revit CategoriesAUT Civil 3D Object TypeUOMLOD
Model ElementsRequired
(yes/no)Remarks
ColourCAT
Code
C1 9/23
APPENDIX C1
6 Drainage & Sewage Model
RGB No. CT AB
aRainwater, storm water pipe,
storm drain m RWP 0,0,255 400 500
Pipes, Pipe Fittings, Pipe
AccessoriesPipe
bSurface channel, slot channel,
external drainage m RWC Default 400 500 Plumbing Fixtures Pipe / Corridor
c Sewerage pipe, foul sewer drain m SWP 122,0,0 400 500Pipes, Pipe Fittings, Pipe
AccessoriesPipe / Pressure pipe
d Toilet Fixture No. WCS Default 400 500 Plumbing Fixtures N/A
e Sump or sewage pit No. PIT Default 400 500 Plumbing Fixtures N/A
f Pump No. PMP Default 400 500 Mechanical Equipment N/A
g Grease trap No. GTR Default 400 500 Plumbing Fixtures N/A
h Sand trap No. STP Default 400 500 Plumbing Fixtures N/A
i
Kitchen waste pipe work
including floor drain, open
trapped
No. KWP Default 400 500 Plumbing Fixtures N/A
jGully, sealed trapped gully,
clean outs and vent No. GUL Default 400 500 Plumbing Fixtures Pipe/ Corridor
k Manhole, terminal manhole No. SMH Default 400 500 Plumbing Fixtures Structure
Model in Revit if
designed as part of
the BS system
(interfacing with UU).
Model in Civil 3D if
BS connection does
not exist.
l Floor drain No. FLD Default 400 500 Plumbing Fixtures N/A
m Rainwater outlet No. RWO 0,0,255 400 500 Plumbing Fixtures N/A
n Petrol oil interceptor No. PEI Default 400 500 Plumbing Fixtures N/A
o Submersible sump pump No. SSP Default 400 500 Plumbing Fixtures N/A
pValve (gate valve, non-return
valve etc.)No. DVL Default 400 500 Pipe Accessories N/A
q Vent pipe m VTP Default 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
rDynamic envelope in drainage
& sewage model- DDE 240,180,210 400 500 Mass Corridor
Revit CategoriesCAT
CodeAUT
LODCivil 3D Object TypeUOM
ColourModel Elements
Required
(yes/no)Remarks
C1 10/23
APPENDIX C1
7 Fire Services Model
RGB No. CT AB
a Automatic actuating device No. AAD 255,0,0 400 500 Fire Alarm Devices N/A
b Drencher system m DRE 255,0,0 400 500 Sprinklers N/A
c Dust detection system No. DDS 255,0,0 400 500 Specialty Equipment N/A
dFire alarm system, gongs &
break glass unit No. AFA 255,0,0 400 500 Fire Alarm Devices N/A
eFire detection system, heat or
smoke detectors No. SHD 255,0,0 400 500 Fire Alarm Devices N/A
f Fire hydrant/hose reel system No. FHR 255,0,0 400 500 Pipe Accessories N/A
gFixed automatically operated
approved appliance No. FAA 255,0,0 400 500 Electrical Equipment N/A
h
Portable hand-operated
approved appliance, fire
extinguisher
No. PAA 255,0,0 400 500 Specialty Equipment N/A
iRing main system with fixed
pump m RMS 255,0,0 400 500 Mechanical Equipment N/A
j Sprinkler pipe work m SPR 255,0,0 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
k Sprinkler head No. SPH 255,0,0 400 500 Sprinklers N/A
l Sprinkler valve & flow switch No. SPV 255,0,0 400 500 Pipe Accessories N/A
m Sprinkler supply tank No. SPT 255,0,0 400 500 Mechanical Equipment N/A
n Sprinkler pump No. SPP 255,0,0 400 500 Mechanical Equipment N/A
o Street fire hydrant system No. SFH 255,0,0 400 500 Pipe Accessories Point / Appurtenance
p Fire service water pump No. FSP 255,0,0 400 500 Mechanical Equipment N/A
q Fire service tank No. FSK 255,0,0 400 500 Mechanical Equipment N/A
r
Gaseous extinguishing
system/clean agent
suppression system
No. GFE 255,0,0 400 500 Mechanical Equipment N/A
s Fixed foam pump No. FFP 255,0,0 400 500 Mechanical Equipment N/A
t Fixed foam pipework m FPW 255,0,0 400 500Pipes, Pipe Fittings, Pipe
AccessoriesN/A
u Fixed foam bladder tank No. FBT 255,0,0 400 500 Mechanical Equipment N/A
vGas flooding system, pipe,
cylinderNo. GFS 255,0,0 400 500
Pipes, Mechanical
EquipmentN/A
wDynamic envelope fire services
model- FDE 240,180,210 400 500 Mass N/A
Revit CategoriesLOD
UOMColour
Civil 3D Object TypeModel ElementsRequired
(yes/no)
CAT
CodeAUT Remarks
C1 11/22
APPENDIX C1
8 Electrical Model
RGB No. CT AB
aCable tray, cable containment,
power feed m CAB 255,255,0 400 500 Cable Trays N/A
b Armoured cables, conduit m COD 255,255,0 400 500 Conduits N/A
cConcealed and cast-in place
conduit No. CCC 255,255,0 400 500 Conduits N/A
dTrunking, bus duct, busbar,
buswaym TRK 255,255,0 400 500
Ducts, Duct Fittings, Duct
AccessoriesN/A
eGenerator or emergency
generator No. GEN 255,255,0 400 500 Electrical Equipment N/A
fGenerator exhaust flue incl.
acoustic treatment No. EXH 255,255,0 400 500 Electrical Equipment N/A
gDiesel tank & fuel pipes for
emergency generator m FUL 255,126,0 400 500
Mechanical Equipment,
Pipes, Pipe Fittings, Pipe
Accessories
N/A
h Electric meter No. MET 255,255,0 400 500 Electrical Equipment N/A
i Transformer No. TRM 255,255,0 400 500 Electrical Equipment N/A
j Switch board, switchgear No. BRD 255,255,0 400 500 Electrical Equipment N/A
kPanel board, motor control
centre No. PAN 255,255,0 400 500 Electrical Equipment N/A
l
Outlet, panel, wall switch,
circuiting to device, security
device, card access and “plug
mould” (socket point) ,lighting
switch, power socket
No. SWT 255,255,0 400 500 Electrical Equipment N/A
m Light fitting No. LGD 255,255,0 400 500 Lighting Fixtures N/A
n Emergency lighting No. EML 255,255,0 400 500 Lighting Fixtures N/A
o Emergency power point No. EPP 255,255,0 400 500 Electrical Equipment N/A
p Exit sign No. EXI 255,255,0 400 500 Lighting Fixtures N/A
qBMS system incl. DDC panel,
I/O Panel, Field Control UnitsNo. DDC 255,255,0 400 500 Electrical Equipment N/A
rSCADA system sensor, control
panelNo. SCA 255,255,0 400 500 Electrical Equipment N/A
sEarth tap, well joint, earth bar,
earth pitNo. ETH 255,255,0 400 500 Electrical Equipment N/A
t
Uninterruptible Power Supply
(UPS) system, switchboard,
battery
No. UPS 255,255,0 400 500 Electrical Equipment N/A
u EV charger point No. EVC 255,255,0 400 500 Electrical Equipment N/A
vService trench for fuel pipe of
generator systemNo. STC 255,255,0 400 500 Electrical Equipment N/A
Revit Categories Civil 3D Object TypeCAT
CodeUOM
ColourRemarksAUT
LODModel Elements
Required
(yes/no)
C1 12/23
APPENDIX C1
w
Underground cable trench for
LV/HV transformer room/switch
room
No. UCT 255,255,0 400 500 Electrical Equipment N/A
x
Earthing and lightning system
incl. mat terminal/ tape /
earthing pit, etc.
No. EAT 255,255,0 400 500 Electrical Equipment N/A
y Capacitor bank No. CPB 255,255,0 400 500 Electrical Equipment N/A
z Active harmonic filter No. AHF 255,255,0 400 500 Electrical Equipment N/A
C1 13/23
APPENDIX C1
aaAutomatic Transfer Switches
(ATS)No. ATS 255,255,0 400 500 Electrical Equipment N/A
ab Isolator No. ISO 255,255,0 400 500 Electrical Equipment N/A
ac Cable link box No. CCP 255,255,0 400 500 Electrical Equipment N/A
adWater leakage detection
systemNo. WLD 255,255,0 400 500 Electrical Equipment N/A
aeMultimedia Broadcast Multicast
Services (MBMS) No. MBS 255,255,0 400 500 Electrical Equipment N/A
af Audio/visual advisory system No. AVS 255,255,0 400 500 Electrical Equipment N/A
agDynamic envelope electrical
model- EDE 240,180,210 400 500 Mass N/A
C1 14/23
APPENDIX C1
9 Special Airport Systems Model
RGB No. CT AB
a Elevator system (by lift supplier) No. LIF Default 400 500 Specialty Equipment N/A
b Escalator No. ESC Default 400 500 Specialty Equipment N/A
c Moving walkway No. EMS Default 400 500 Specialty Equipment N/A
aa To be added by DC Electrical Equipment N/A
ba Equipment including motors No. EIM Default 400 500 Specialty Equipment N/A
bb Baggage envelope No. BAG Default 400 500 Mass N/A
bc Preliminary support structure No. PSS Default 400 500 Generic Models N/A
bd Catwalk m CWK Default 400 500 Generic Models N/A
be Access zone m2 ACZ Default 400 500 Generic Models N/A
bf Egress path m EGP Default 400 500 Generic Models N/A
ca Cable tray m CAB 153,0,204 400 500 Cable Trays N/A
cb
CCTV system including CCTV
camera, control and monitor
equipment
No. CAM 153,0,204 400 500 Electrical Equipment N/A
ccPassenger Flow Management
System (PFMS) CameraNo. PFM 153,0,204 400 500 Electrical Equipment N/A
cdPublic Address System,
speakerNo. SPK 153,0,204 400 500 Electrical Equipment N/A
ceTrunked Mobile Radio (TMR)
System, antennaNo. TMR 153,0,204 400 500 Electrical Equipment N/A
cf Wireless system (antenna) No. WLS 153,0,204 400 500 Electrical Equipment N/A
cg TBE system (mobile antenna) No. TBE 153,0,204 400 500 Electrical Equipment N/A
ch
Access Control System incl.
smart card access panel, card
reader, door interface unit (DIU)
No. ACS 153,0,204 400 500 Electrical Equipment N/A
ciWireless LAN System (WNET)
Access Point and AntennaNo. WLN 153,0,204 400 500 Electrical Equipment N/A
cj
Master Antenna Television
(MATV) system including MATV
distribution frame (MTF), TV
outlet
No. MAT 153,0,204 400 500 Electrical Equipment N/A
ckFlight Information Display
System (field display unit)No. FIS 153,0,204 400 500 Electrical Equipment N/A
cl
Arrival Message Display
System (AMDS) (field display
unit)
No. AMD 153,0,204 400 500 Electrical Equipment N/A
Revit CategoriesCAT
CodeAUTUOM
Lifts & Escalators
Civil 3D Object TypeModel ElementsRequired
(yes/no)
Colour LOD
Indoor Airport Systems
Remarks
APM
BHS
C1 15/23
APPENDIX C1
cm
Dynamic Signage Display
System (DSDS) (field display
unit)
No. DSD 153,0,204 400 500 Electrical Equipment N/A
cnUniversal Display System
(UDS) (field display unit)No. UDS 153,0,204 400 500 Electrical Equipment N/A
co
Web-based Information Display
System (WIDS) (field display
unit)
No. WID 153,0,204 400 500 Electrical Equipment N/A
cpe-Directory Kiosk (field display
unit)No. EKI 153,0,204 400 500 Electrical Equipment N/A
cqPersonnel FIDS (field display
unit)No. PFD 153,0,204 400 500 Electrical Equipment N/A
criBeacon Enabled Passenger
Services (iBeEPS)No. IBE 153,0,204 400 500 Electrical Equipment N/A
cs
Voice and data Cabling System
incl. HDF/FDF/TDF, Voice and
Data Outlet (VDO)
No. VDC 153,0,204 400 500 Electrical Equipment N/A
C1 16/23
APPENDIX C1
ct
Airline Check-in Systems -
Common User Terminal
Equipment (ACIS-CUTE)
workstation
No. CUS 153,0,204 400 500 Electrical Equipment N/A
cuAirline Check-in Systems - Self
Bag Drop (ACIS-SBD) SystemNo. BDS 153,0,204 400 500 Electrical Equipment N/A
cv
Telephones incl. VDO, public
pay telephones APABX phones,
courtesy phones, help phones
etc.
No. TEL 153,0,204 400 500 Electrical Equipment N/A
cwiCommon User Self-Service
(Icuss) (field unit)No. IUS 153,0,204 400 500 Electrical Equipment N/A
cxCarpark control system, barrier
gate, sensor, control panel, etc.No. CAP 153,0,204 400 500 Electrical Equipment N/A
da
Fixed Ground Power (FGP)
System incl. link box, main
cable, stand type/mounted type
equipment, control panel,
converter pit, frequency
converter
No. FGP 0,104,104 400 500 N/A
Point, Feature line, Pipe,
Structure, Alignment,
Profile.
db
Aircraft Parking Aids (APA)
System incl. APA stand number
Indicator, optical transmitter,
operation station, equipment
box, hydraulic cylinder
No. APA 0,104,104 400 500 N/A Point, Pipe, Structure
dc Stand Power and PCA Systems No. PCA 0,104,104 400 500 N/A
Point, Feature line,
Alignment, Profile, Pipe,
Structure
ddElectric Vehicle Charging
SystemNo. EVS 0,104,104 400 500 N/A
Point, Feature line, Pipe,
Structure, Alignment,
Profile.
de
Airfield Ground Lighting System
incl. runway lighting fixture
transformer housing, cable
draw pit, cable duct, current
regulator, circuit isolator, etc.
No. AGL 0,104,104 400 500 N/A
Point, Feature line, Pipe,
Structure, Alignment,
Profile.
df
Airport Lighting Warning
System (ALWS) – lighting
warning display, surge arrestor
& RTU, signal distribution
controller, server and
workstation, warning lights
No. ALW 0,104,104 400 500 N/A
Point, Feature line, Pipe,
Structure, Alignment,
Profile.
dg
AA Anemometer (ANEM)
System incl. wind-speed speed
& director transmitter, surge
arrestor & transceiver
No. ANE 0,104,104 400 500 N/A
Point, Feature line, Pipe,
Structure, Alignment,
Profile.
Airfield Facilities Apron/ Airfield System
C1 17/23
APPENDIX C1
dh
Foreign Object Debris Detection
(FOD) System incl. FOD
camera & transceiver
No. FOD 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure,
diIntrusion Detection and
Surveillance System (IDSS)No. IDS 0,104,104 400 500
Generic Models, Special
EquipmentPoint, Pipe, Structure,
dj
Sub Pavement Monitoring
System (SPMS) incl. sensor,
data logger & transceiver
No. SPM 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure,
dk
Wildlife/Bird Control System
(BCS) including sound repellent
system, local control panel
No. BCS 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure,
dl
PA-link System incl. PA
speaker, amplifier, DSP
microphone & paging console
No. PAL 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure,
dm
Aircraft Crash Alarm System
(ACAS) incl. call-out button, call-
out alert light, relay panel &
transceiver
No. ACA 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure
dn
GPS GSE Tracking System
(GPS) incl. RFID reader,
equipment box, spur unit
No. GPS 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure
do
Tunnel Traffic Lane Control
System (LCS) – traffic signage,
PLC, local control panel &
transceiver
No. LCS 0,104,104 400 500Generic Models, Special
EquipmentPoint, Pipe, Structure
dp
Aircraft Parking Aids (APA)
System incl. Gantry,
Marshalling Platform
No. APG 0,104,104 400 500
Structure Columns/
Structural Connections/
Structural Foundations/
Structural Framing/
Structural Stiffeners
N/A
dq
Airfield SCADA System incl. I/O
panel, RTU and transceiver, LV
switchboard, drainage control
panel, SCADA filed control unit,
relay panel
No. ASC 0,104,104 400 500 Electrical Equipment N/A
dr
Traffic Control and Surveillance
System (TCSS) incl. control and
display panel, server,
workstation
No. TCS 0,104,104 400 500 Electrical Equipment N/A
dsCCTV System camera, TCSS
Camera No. TCC 0,104,104 400 500 Electrical Equipment N/A
dt
Indoor display and control
panel, workstation for all kinds
of airport systems
No. CWD 0,104,104 400 500 Electrical Equipment N/A
duDynamic envelope for special
systems model- XDE 240,180,210 400 500 N/A Pipe, Corridor
C1 18/23
APPENDIX C1
10 Underground Utilities Model
RGB No. CT AB
aPressurize foul / sewerage
pipes (site wide)m / No. TMP 204,102,0 400 500 N/A Pressure pipe/Pipe
bGravity foul / sewerage /
manholes / pipes (site wide)m / No. TMG 122,0,0 400 500 N/A Pipe
cOther connection point,
manhole, inspection pit No. TMH Default 400 500 N/A Structure
d Gully m/m³ SGU 114,153,76 400 500 N/A Structure
e Electrical line by CLP m ELC 255,153,255 400 500 N/A Pipe
f CLP 132kV m ELH 153,51,102 400 500 N/A Pipe
g Electrical line by authority m ELA 255,210,204 400 500 N/A Pipe
h AA power cable (backup) m ELP 255,80,30 400 500 N/A Pipe
i Fence lighting cable m ELF 204255153 400 500 N/A Pipe
j Metering duct m ELM 120,82,0 400 500 N/A Pipe
k Airfield ground lighting m ELG 0,255,0 400 500 N/A Point
l Road lighting No. ELR 255,0,255 400 500 N/A Point
m Road lighting cable m ELI 255,0,255 400 500 N/A Pipe
n Stand gantry No. ELS 240,240,240 400 500 Specialty Equipment Point/Structure
o Stand anchor No. ELN 240,240,240 400 500 Specialty Equipment Point/Structure
p Stand barrier No. ELB 240,240,240 400 500Specialty Equipment /
WallsPoint/Structure
q
Other electrical supply cable,
trench, power distribution
system
m / No. ELU Default 400 500 N/A Pipe
rAviation fuel lines and
chambersm AFL 255,126,0 400 500 N/A
Alignment,
Pipe / Pressure pipe,
Structure
s Gas supply main, piping, valve m / No. GAS 255,204,0 400 500 N/APressure pipe,
Appurtenance
t Oil interception No. GAI 153,102,0 400 500 N/A Appurtenance
u Town gas pipes m TGS 255,204,0 400 500 N/A Pressure pipe
v Potable water line m WSW 0,255,255 400 500 N/A Pressure pipe
w Fire hydrant No. WSP 0,255,255 400 500 N/A Point/Appurtenance
Revit Categories
Gravity / pumped foul sewerage / manholes / gully
UOMColour
Electrical line by CLP (11kV & 380V)
Electrical line by authority (11kV & 380V)
Electrical line by emergency backup (11kV & 380V)
Gas supply main, piping, valve
CAT
CodeAUT
LODModel Elements
Required
(yes/no)
Electrical line by CLP (132kV)
Water line
RemarksCivil 3D Object Type
C1 19/23
APPENDIX C1
x Chilled water line m WSF 0,176,240 400 500 N/A Pressure pipe
y Irrigation water line m WSI 0,75,0 400 500 N/A Pressure pipe
z Sea water line m WSS 0,153,0 400 500 N/A Pressure pipe
aa Grey water line m WSG 85,107,47 400 500 N/A Pressure pipe
ab Raw water line m WSR 51,102,204 400 500 N/A Pressure pipe
ac Glycol line m WSL 102,102,255 400 500 N/A Pressure pipe
ad Stormwater drainage m WST 0,0,255 400 500 N/A Pipe
aeOther water supply main,
control valve m / No. WSM Default 400 500 N/A
Pressure
pipe/Appurtenance
C1 20/23
APPENDIX C1
af Telephone by public carrier m / No. UTT 128,191,69 400 500 N/A Point
agCommunications by the
authoritym / No. UTC 217,168,72 400 500 N/A Point
ahOther underground
telecommunication system m / No. UTL Default 400 500 N/A Pressure pipe
aiTelecommunication pits and
ductm / No. PTE 128,191,69 400 500 N/A Pipe, Structure
aj Communications pits and ducts m / No. PCO 217,168,72 400 500 N/A Pipe, Structure
ak Power pits and ducts systems m / No. PPO 255,80,30 400 500 N/A Pipe, Structure
al CLP pits and ducts systems m / No. PCL 153,51,102 400 500 N/A Pipe, Structure
amDynamic envelope for
underground utilities- UDE 240,180,210 400 500 Mass Corridor
Pits and Ducts System
Underground telecommunication system
C1 21/23
APPENDIX C1
11 Highway, Bridge and Other Civil Works Model
RGB No. CT AB
a Bridge column/pier m³ PIR 153,0,0 400 500 Structural Columns N/A
b Bridge abutment m³ ABT 204,102,102 400 500 Structural Foundations N/A
c Precast bridge segment m³ PBS 153,153,0 400 500 Structural Framing Corridor
d Steel bridge segment ton STB 102,204,0 400 500 Structural Framing Corridor
e Bridge deck m³ DCK 0,153,0 400 500 Structural Framing Corridor
f Bridge foundation m³ BFD 0,204,102 400 500 Structural Foundations N/A
g Bridge bearing m/No. BBG 132,153,103 400 500 Generic Model N/A
h Bridge girder m³ BGD 121,41,33 400 500 Structural Framing Corridor
i Bridge joint m BJT 206,236,254 400 500 Generic Model N/A
j Steel parapet ton SLP 242,245,215 400 500 Generic Model N/A
k Concrete parapet m³ CPT 226,241,199 400 500 Generic Model Corridor
lRoad, grading (refer to site,
carriageway)
ton/m³ /
m2 ROD 0,38,76 400 500 N/A Corridor
m Lighting along road No. LGT 204,255,153 400 500 Lighting Fixtures Point
n Street and outdoor furniture No. STF 134,129,105 400 500 Furniture Point
o Pillar box No. PIB 159,151,201 400 500 Lighting Fixtures Point
p Parking Stalls No. RCA Default 400 500 Parking Feature line, point
qRoad light post, bracket and
lanternNo. RLP 207,221,249 400 500 Lighting Fixtures Point
rRoad lighting drawpit and
earthing pit No. RLD 231,244,200 400 500 Lighting Fixtures Point/Appurtenance
s Access gate No. ACG 242,207,110 400 500 Door Point
t Crash cushions No. RCC 208,251,101 400 500 Generic Model Point
u Barrier fences m RBF 168,203,246 400 500 Generic Model Corridor
v Concrete parapet m RPT 226,241,199 400 500 Generic Model Corridor
w Road markings m/No. RMG 235,235,235 400 500 Generic Model Feature line, Point
x Traffic bollard No. TRB 165,144,208 400 500 Generic Model Point
y Sign Gantries No. SGT 251,176,101 400 500 Generic Model Point
z Footways and paved area m2 FTW 191,212,164 400 500 N/A Corridor
aa Traffic sign, directional sign No. TFS 253,123,123 400 500 Lighting Fixtures Point
ba Taxiway/ Taxilane/ Runway m / m2 TXW 185,177,167 400 500 N/A Corridor
bb Airfield roadway m / m2 ARW 180,205,147 400 500 N/A Corridor
Highway
Bridge/Footbridge
LODRemarksRevit Categories Civil 3D Object TypeModel Elements
Required
(yes/no)
CAT
CodeAUTUOM
Colour
Taxiway & Other Airfield Road Way
C1 22/23
APPENDIX C1
caProfile barrier, beam barrier,
kerbs, parapet, traffic islandsm / m
2 RBA 127, 255, 223 400 500 N/A Corridor
daDynamic envelope for civil
works model- CDE 240,180,210 400 500 Mass Corridor
12 Marine Works Model
RGB No. CT AB
a Seawall m³ SEA 180,170,181 400 500 Structural Foundations Corridor, TIN surface
b Breakwater m³ BRW 152,170,200 400 500 Structural Foundations Corridor, TIN surface
c Pier, jetty m³ JTY 167,185,169 400 500 Structural Foundations Corridor, TIN surface
dDynamic envelope for marine
works model- WDE 240,180,210 400 500 Mass Corridor, TIN surface
Revit Categories Civil 3D Object Type RemarksModel ElementsRequired
(yes/no)
CAT
CodeAUT
LODUOM
Colour
Landside Road & Airside Road
C1 23/23
APPENDIX C1
Construction BIM Specification
Appendix C2
Appendix C Part 2 - LOD Specification v5.1a 2
1 Site Model
a TOP Topography (existing site and surrounding land use)
400 The topography model shall be trimmed by the constructed ground model.
Geometric information include:
- Size, shape and location of existing ground surfaces, top surface of existing road, footpath, surface drain,
paved ground and other site features.
- The topography model represented in TIN surface with project-specific surface styles for displaying contours,
triangle, watersheds and etc.
- The topography model displayed in the plan view with the form of contours with project-specific intervals.
- Site boundary marked based on the surveyors setting out information.
Non-graphic information include:
- Survey data information (Such as file name, survey date, survey company, data type and the like)
500 Refer to LOD 400 and the model shall be trimmed by the as-built ground model.
b SIT Topography (site formation)
400 The model shall be updated with as constructed levels.
Geometric information include:
- The site formation represented as complete and accurate a TIN surfaces to show the levels for excavation and
site grading. The contour lines shall be labelled and spot elevation labels shall be added.
- Top surface of the site infrastructure of proposed platform, roads, curbs, pavements, car parking, access, hard
landscaping and etc.
- Site boundary marked based on the surveyors setting out information.
This model shall be considered to incorporate into DTM as a single unified model.
500 Refer to Appendix C Part 1 - Introduction .
c NSL Natural Slope
400 The model shall be updated with as constructed levels.
Geometric information include:
- Layout and boundary of the slope, including berm and toe lines.
- Size of the exposed rock head.
- Location and size of the existing retaining structure.
- Location, size and orientation of the slope nails.
- Location and size of existing trees.
Non-graphic information include:
- Surface material type.
- Unique slope Identifier.
- Maintenance party.
- Unique tree identifiers, species, crown and spread information.
500 Refer to Appendix C Part 1 - Introduction .
d ASL Artificial Slope
400 Geometric information include:
- Layout and boundary of the slope, including berm and toe lines, cut/fill slope and transition parameters.
- Size of the exposed rock head.
- Location and size of the u-channels/ step-channels, catch pits, and maintenance access.
- Location, size, orientation and extend of the slope nails.
- Location and size of newly planted trees.
- Location and size of surfacing materials.
- Major contour in 5m interval and minor contour in 1m interval with the elevation annotation.
- Size and shape of each layer of excavation and refill.
- Location and shape of benching and waterproof layer.
- Location of settlement markers.
- Extend of the temporary works and working space.
Non-graphic information include:
- Surface material type.
- Unique slope identifier.
- Unique settlement marker identifier.
- Unique soil nail identifier.
- Slope maintenance party.
- Unique tree identifiers and respective species information.
- Unique catch pit identifier.
- Excavation and refill Material Information.
- Tree crown and spread information.
500 Refer to Appendix C Part 1 - Introduction .
Remarks/ References
#
CAT
Code LOD AAHK's Requirements
APPENDIX C2
C2 1/38
Appendix C Part 2 - LOD Specification v5.1a 3
1 Site Model
Remarks/ References
#
CAT
Code LOD AAHK's Requirements
e FBR Flexible Barrier
400 The model shall be updated as constructed levels.
Geometric information include:
- Size, shape, spacing, and location of equipment and associated components.
- Size, shape, spacing, and location for supports and seismic control.
- Size, shape, and location/connections of equipment and support structure/pads.
- Size and orientation of the standing post and the based plate and post.
- Size and orientation of the foundation mass concrete and wedge foundation.
- Location and size of the flexible rockfall barrier.
- Location, size and shape of the adjoin cut/fill slope, stepped channel, u-channel, and soil nail.
Non-graphic information include:
- Unique identifier of the ground anchor and its design load.
- Material type.
500 Refer to Appendix C Part 1 - Introduction .
f RBR Rigid Barrier
400 The model shall be updated as constructed levels.
Geometric information include:
- Size, shape, spacing, and location of equipment and associated components.
- Size, shape, spacing, and location for supports and seismic control.
- Size, shape, and location/connections of equipment and support structure/pads.
- Size and orientation of the standing post and the based plate and post.
- Size and orientation of the foundation mass concrete and wedge foundation.
- Location and size of the flexible rockfall barrier.
- Location, size and shape of the adjoin cut/fill slope, stepped channel, u-channel, and soil nail.
Non-graphic information include:
- Unique identifier of the ground anchor and its design load.
- Material type.
500 Refer to Appendix C Part 1 - Introduction .
g RET Retaining Wall
400 Geometric information include:
- Extend of the temporary works and working space.
- Locations of construction joints.
- Locations of movement joints.
- Locations of box-out openings.
- Location, size and shape of the cantilever slab, vertical slit, openings, concrete chamfer, concrete baffle.
- Size location and shape of the maintenance stairways, hand railing, trash grating.
- Location, size and shape of the adjoining cut/fill slope, stepped channel, u-channel, and soil nail (refer to LOD
400 of artificial slope).
Non-graphic information include:
- Finishes
- Material types and grades
- Concrete cover to reinforcement.
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
h SUR Massing Model of Adjacent Areas or Surrounding Buildings
400 Surrounding buildings, bridges or other structures shall be modelled as mass elements to locate the project in
relation to the local area.
500 Refer to LOD 400 .
APPENDIX C2
C2 2/38
Appendix C Part 2 - LOD Specification v5.1a 4
1 Site Model
Remarks/ References
#
CAT
Code LOD AAHK's Requirements
i GEO Geological Model (seabed, fill, marine deposits, alluvium, colluvium, completely and highly
decomposed granite, bedrock)
400 The model shall be trimmed by the constructed ground model.
Geometric information include:
- Borehole
- Layers of soil, fill, rock, etc. based on borehole logs or AGS from site investigations.
- The model represented in TIN surface with project-specific surface styles for displaying contours, triangle, and
etc.
- The topography model displayed in the plan view with the form of contours with project-specific intervals.
- Site boundary marked based on the surveyors setting out information.
Non-graphic information include:
- GI data information (such as GI data file name, survey date, survey company, data type and the like)
- Excavation volume for each types of geological layers.
500 Refer to LOD 400 and the model shall be trimmed by the as-built ground model.
j PAV Pavement (carriageway, footpath, cycle track)
400 Geometric information include:
- Alignment with required chainage labels, Profile view with existing ground profile and design profile and
assemblies representing the typical sections of the pavement.
- Size and geometry of every layer of paving components (frication course, wearing course, based-course, road-
based, sub-based, etc.) that varies continuously along the road alignment.
- Super-elevation and longitudinal fall of the pavement components.
- Depth and with of the pavement components in the transition area.
- Cross section views, TIN surfaces for each layer of paving components.
- Reinforcing.
- Pour stops.
- Movement joints.
- Line and road markings.
- Openings for drains and other services.
- Locations of Construction Joints.
- Locations of box-out openings.
Non-graphic information include:
- Unique Identifier of construction bay.
- Finishes.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction .
k NSB Noise Barrier
400 Geometric information include:
- Locations of construction joints/movement joints/welding.
- holding down bolt, anchor system, poles, noise barrier panels and/or steel structure.
Non-graphic information include:
- Finishes
- Material types and grades
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
l PTR Planter
400 The model shall be updated with as constructed levels.
Geometric information include:
- Locations of construction joints and movement joints.
- Location, overall size and geometry of planter wall and footing.
- Cross-fall and longitudinal fall of the elements.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Material type.
- Sub soil material.
- Top soil material.
500 Refer to Appendix C Part 1 - Introduction .
m BOL Bollard
400 The model shall be updated with as constructed levels.
Geometric information include:
- Spacing and clearance requirements.
Non-graphic information include:
- Bollard type.
- Material type.
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 3/38
Appendix C Part 2 - LOD Specification v5.1a 5
1 Site Model
Remarks/ References
#
CAT
Code LOD AAHK's Requirements
n PHB Phone Booth
400 The model shall be updated with as constructed levels.
Non-graphic information include:
- Phone booth type.
- Material type.
- Unique identifier of phone booth.
500 Refer to Appendix C Part 1 - Introduction .
o SGN Signage
400 The model shall be updated with as constructed levels.
Non-graphic information include:
- Signage type.
- Unique identifier of sign plate.
- Material type.
- Unique identifier of signage.
500 Refer to Appendix C Part 1 - Introduction .
p FEW Security Fence - Concrete Wall See 3-f-SWL Structural Wall
q FEF Security Fence - Concrete Foundation See 3-a-SFO Foundation
r FEM Security Fence - Wire Mesh
400 The model shall be updated with as constructed levels.
Non-graphic information include:
- Type, size and thickness of Mesh.
- Openings details.
- Material.
- Typical detail.
- Other required technical/material parameters.
500 Refer to Appendix C Part 1 - Introduction .
s FEG Security Fence - Access Gate
400 The model shall be updated with as constructed levels.
Geometric information include:
- Foundation.
- Gate post.
- Gate members.
- Mesh.
- Pedestrian access gate.
- Capping members.
- Interior gate stope.
- Typical detail.
Non-graphic information include:
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction .
t EDR Surface Channel, Slot Channel, External Drainage
400 Geometric information include:
- Horizontal alignment and vertical alignment for the channel/drainage.
- Size and thickness of channel structure.
- Location and size of risers and equipment.
- Top and bottom surface models for channel shall be generated.
- Extend of the temporary works and working space.
- Size and shape of bedding.
Non-graphic information include:
- Bedding type.
- Bedding concrete grade.
- Type of the pipe.
- Material type.
- Unique identifier of pipes, risers and equipment.
- Spacing and clearance requirements.
- Insulation for risers, mains and branches.
500 Refer to Appendix C Part 1 - Introduction .
u CUL Box Culvert
v NUL Nullah
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
APPENDIX C2
C2 4/38
Appendix C Part 2 - LOD Specification v5.1a 6
2 Architecture Model
AAHK Requirements
a MAS Building Massing Model
400 Massing model shall represent the overall building volume, shape, location and orientation. The model shall
include:
- Schematic wall elements.
- Data for floor areas.
Note: the conceptual massing model shall be converted into normal building elements of floors, walls, doors,
window etc. at the scheme design stage.
500 Refer to LOD 400
b SPA Room, Space, Corridor, Plant and Equipment Room
400 Spaces shall be modelled to show size, function, location and orientation.
Each space shall have a unique ID and name based on the room function which can be used to locate the space.
Include room data.
Space height shall be modelled from FFL to soffit of exposed slab or suspended ceiling above.
Net square footage of all occupied spaces (Areas), Gross constructed floor area, Room names and numbers
(Location ID), Floor, based, wall, and ceiling finishes. NOTE: Model room names and numbers shall match the
Architectural Program space names and numbers.
Non-graphic information include:
- Location (level and zone).
- Room name matching SoA (unless otherwise specified).
- Required area (sqm).
- Room number.
- Room type.
- Department.
- Required area (sqm).
- Provided area (sqm).
500 The as-built room ID, name and associated Room Data shall be verified on site and updated.
c ESS Elevator, Elevator Shaft Space
400 Each shaft shall have a unique ID and name based on the lift allocation which can be used to locate the space.
Include data for area (meter square).
Model shall contain all elevator parts, including elevator cars, guide rails, machine drive, control cabinet, pulleys,
landing doors, aprons, brackets, buffers and frames.
Exposed lift units shall also contain glazing finish and all finish elements.
Lift motor room space requirements shall be modelled.
All connections, supports, framing, and other supplementary components, brand name and supplier contact as
parameter.
Sizing adjusted to the actual manufacturer specifications. Guiding tracks/rail Service/access zones shall be
modelled.
Non-graphic information include:
- Lift number, location, function / type, front of house or back of house designation, yes/no designation for
fireman's lift, yes/no designation for disabled lift.
- Levels served and corresponding construction types, total travel distance.
- Dimension including shaft clear opening, car size, clear door opening, pit depth, overrun
- Door opening type.
- Mechanical data including capacity (weight in kg), speed, electric traction or hydraulic type, yes/no requirement
for machine room, size of machine room, overall required headroom.
- Yes/no requirement for sump room, yes/no requirement for water detection system at lift pit.
500 The model elements shall be actual and verified based on as-built site surveys, with brand name and supplier
contact.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 5/38
Appendix C Part 2 - LOD Specification v5.1a 7
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
d FLR Floor, Slab, Ramp, Roof
400 Floor element with dimensions and overall thickness including structural depth and finishes.
The model shall include supporting framing members. Grids shall be defined.
Overall slope (if any) shall be modelled.
Element shall be modelled. No structural model shall be originated from architectural model.
Finishes materials shall be modelled based on types (tiles, wood, etc.) including data for type, and thickness, and
linked to the Structural Systems Model. Finish materials shall be associated with Type; in the event paint patters
exist, the major paint finish shall be associated with Type.
Roof covering shall be modelled to the designed geometry of the roof surface skin and including the associated
build-up of the roof covering systems, such as flat or facetted cassette arrangement, gutters drawn in required
gradient or fall.
Secondary subframes for roof covering, other architectural elements such as suspending ceilings, internal wall
claddings and etc. shall be modelled in details and correct location. Straight or curved elements shall be
indicated and incorporated. Connection details shall also be included.
All structural floor elements shall be modelled.
Finishes details including tiling, carpet, raised floor, computer flooring or screed shall be modelled to falls.
The element finishes details shall be updated with manufacturers information such as pattern layouts,
expansion/control joints, dividing strips, edge details, etc.
500 Refer to Appendix C Part 1 - Introduction .
e FOO Feature Roof, Sloped Roof Covering System
400 Element with dimensions and overall thickness including structural depth and finishes. The model shall include
supporting framing members. Grids shall be defined.
Element shall be modelled. No structural model shall be originated from architectural model.
Finishes materials shall be modelled based on types (tiles, wood etc.) include data for fire rating, type, and
thickness, and linked to the Structural Systems Model.
Surface shall be modelled to the actual geometry of the roof surface skin and including the associated build-up of
the roof covering systems, such as flat or facetted cassette arrangement, gutters drawn in required gradient or
fall. Elements that normally form the roof systems such as maintenance walkways shall also be modelled. Fall
arrest system, cleat, roof cassette arrangements, and bullnose, movement joints, expansion joints, hairline and
penalisation shall be modelled to actual quantities and geometry. Bullnose and panels shall be modelled in
actual geometry with connection details. Geometric information such as dimensions, coordinates, slope,
curvature, and offset from other elements shall be extracted and attached as non-graphic data if requested by
AAHK.
Secondary subframes for roof covering, other architectural elements such as suspending ceilings, internal wall
claddings and etc. shall be modelled in details and correct location. Straight or curved elements shall be
indicated and incorporated. Connection details shall also be included.
Panel labelling/naming strategy shall be proposed for AAHK's approval. Unique IDs shall be provided.
All structural floor elements shall be modelled. The model shall contain roof finishes details including
penalisation. The finishes shall be modelled to falls.
Fall arrest system, movement joints, expansion joint, cleat, bullnose and penalisation shall be modelled in
separate elements in accordance with roof penalisation design.
Workpoint information shall be attached as non-graphic data.
The roof finishes details shall be updated with manufacturers information such as pattern layouts,
expansion/control joints, dividing strips, connection details, edge details, etc.
500 Refer to Appendix C Part 1 - Introduction .
f ACL Basic Structural Column & Wall
400 Grids shall be defined.
Structural elements shall be modelled. Any finishes materials shall be modelled based on types (tiles, wood,
etc.). No structural model shall be originated from architectural model.
The column and wall finishes details shall be updated with manufactures' information such as pattern layouts,
expansion/control joints, dividing strips, edge details etc.
500 Refer to Appendix C Part 1 - Introduction .
g ABS Basic Structural Beams & Framing
400 Grids shall be defined.
Structural elements shall be modelled.
The model shall contain actual finishes details.
The beam and framing details shall be updated with manufactures' information such as pattern layouts,
expansion/control joints, dividing strips, edge details etc.
500 Refer to Appendix C Part 1 - Introduction .
C2 6/38
APPENDIX C2
Appendix C Part 2 - LOD Specification v5.1a 8
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
h EWL Exterior Wall
400 Wall element shall be modelled with dimensions and overall thickness including structural width and finishes.
The model shall include supporting framing members if applicable. The primary grids shall be defined.
Structural walls' type and composition shall be modelled as per the structural engineers' information. Finishes
materials shall be accurately modelled based on specific types (tiles, stone, plastered, paint, etc.).
Composite model assembly's type and composition shall be modelled with specific overall thickness that
accounts for veneer, structure, insulation, air space, and interior skin specified for the wall system. (Refer to
LOD400 for individually modelled elements). Penetrations shall be modelled to nominal dimensions for major wall
openings such as windows, doors, and large mechanical elements.
Non-graphic information include:
- Wall type.
- Materials (Finish materials shall be associated with Type; in the event paint patters exist, the major paint finish
shall be associated with Type.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
The model shall contain accurate wall finishes details including tiling, stone, cladding or screed only. Openings
for mechanical vents, louvers or other builders' works requirements shall be included. All structural wall elements
shall be replaced by using a reference model from the structural engineer.
Main structural members such as headers and jambs at openings shall be modelled within the composite
assembly.
The wall finishes details shall be updated with manufacturers' information such as pattern layouts,
expansion/control joints, dividing strips, edge details etc. For cladding systems, the fixing details, secondary
structures shall be modelled.
500 Refer to Appendix C Part 1 - Introduction .
i IWL Interior Wall / Partition / Non-structural Wall
400 Wall element with dimensions and overall thickness including finishes.
Wall objects separated by type of material (e.g. gypsum board vs. masonry).
Internal walls shall be modelled from floor slab to soffit of beam or slab above.
Finishes materials shall be accurately modelled based on actual types (tiles, stone, plaster, paint, etc.). Finish
materials shall be associated with Type; in the event paint patters exist. Major paint finish and fire rating shall be
associated with Type.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
The model shall contain wall finishes details including tiling, stone, cladding or screed only. Openings for
building services builders' works requirements shall be included.
The wall finishes details shall be updated with manufacturers' information such as pattern layouts,
expansion/control joints, dividing strips, edge details etc.
Layers shall be modelled for dry wall construction. Stud shall be modelled in areas required by AAHK.
500 Refer to Appendix C Part 1 - Introduction .
C2 7/38
APPENDIX C2
Appendix C Part 2 - LOD Specification v5.1a 9
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
j CTM Curtain Wall, including Shading Devices
400 Curtain wall system shall be modelled as an assembly with thickness that accounts for structure, spacing and
location of mullions and transoms, insulation, air space and any interior or exterior skins and shading devices.
Operable components shall be defined (windows, louvers and doors) and included in the model.
Penetrations shall be modelled to dimensions for openings such as doors, mechanical elements or structures.
Non-graphic information include:
- Nominal dimensions.
- Type and composition.
- Height, length and width.
- Thermal, acoustic, fire and security ratings.
- Ironmongery (handles, locks, hinges etc.) including as data for schedule output. include data for materials
schedule.
Panel labelling/naming strategy shall be proposed for AAHK's approval.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
All non-graphic information shall be included consistent with manufacturer information.
Structural supports and connections shall be modelled. The model shall contain finishes details.
All curtain wall elements shall be modelled to support fabrication and installation. Update the models with
specific manufacturers' information including section or extrusion profiles, glazing sub-components, etc.
Mullion and transom shapes and geometry defined. Façade brackets, embeds, fixings, cast-ins, secondary sub-
frames shall be modelled in actual locations for coordination with structure.
500 Refer to Appendix C Part 1 - Introduction .
k CLD Precast Façade, Cladding
400 Model facades accurately based on actual types. Material of concrete, GRC, fiberglass, aluminium or other shall
be specified.
Penetrations shall be modelled to dimensions for openings such as doors, windows, mechanical elements or
structures.
Non-graphic information include:
- Nominal dimension.
- Type and composition.
- Height, length and width.
- Thermal, acoustic, fire and security ratings.
- Ironmongery (handles, locks, hinges etc.) included as data for schedule output.
- Exterior and interior identified by type and by function.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
Façade brackets, embeds, fixings, cast-ins, secondary sub-frames shall be modelled for coordination with
structure.
Update with specific manufacturers information.
500 Refer to Appendix C Part 1 - Introduction .
l DOR Door (exterior and interior)
400 Model doors with dimensions in terms of location, size, count and type.
Doors shall be modelled based on actual types.
Non-graphic information include:
- Identified exterior and interior by type and by function.
- Unique ID for each door based on the room or space which it is used to access
- Fire rating.
- Type and material (height, width, and thickness, thermal, acoustic, fire and security rating, location) with
hardware elements or group.
- Ironmongery (handles, locks, hinges etc.), which shall be schedulable if requested by AAHK.
Entrance door assemblies shall be modelled by type to include the following:
- Door panels and frames (if applicable).
- Hardware set functionality and types are specified in non-graphic information.
- Specified operation is specified, with spatial requirements for operation modelled.
Major framing elements shall be modelled at jambs and head. Operation or mechanism enclosures shall be
modelled.
Update with specific manufacturers information.
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 8/38
Appendix C Part 2 - LOD Specification v5.1a 10
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
m WDW Window
400 Model windows with dimensions in terms of location, size, count and type.
Model windows based on types, specified location and size.
Required non-graphic information associated with model elements includes:
- Nominal size.
- Aesthetic characteristics (finishes, glass types).
- Performance characteristics (i.e. U-value, wind loading, structural, air, thermal, water, sound).
- Functionality of the window (fixed, double/single hung, pivot, sliding) etc.
- Type and material (Height, width, and thickness, thermal, acoustic, fire and security rated information).
- Hardware elements or group.
- Ironmongery (handles, locks, hinges etc.), which shall be included as data for schedule output.
- Exterior and interior identified by type and by function.
- Unique ID for each element based on the room or space which it is used to enclose.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
Brackets, embeds, fixings, cast-ins, secondary sub-frames shall be modelled.
Update with specific manufacturers information including frame profiles, glazing sub-components.
500 Refer to Appendix C Part 1 - Introduction .
n LOU Louver, Decorative Louver, Sunshading & other Architectural Feathers
400 Louver assembly modelled by type, indicative of area and location of intended louver/vent and includes frame
(boundary dimensions) and blades.
Opening for louver is cut from host wall. Performance level defined in non-graphic information associated with
model elements (e.g. storm proof or not, free air).
Non-graphic information include:
-Type.
-Material (Height, width, and thickness).
-Hardware elements or group.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
Brackets, embeds, fixings, cast-ins, secondary sub-frames shall be modelled.
Update with specific manufacturers information including frame profiles, blade profiles and sub-components.
500 Refer to Appendix C Part 1 - Introduction .
o SKY Skylight
400 Model skylights with dimensions in terms of location, size, count and type.
Model skylights based on actual types, location and size.
Non-graphic information include:
- Nominal size;
- Aesthetic characteristics (finishes, glass types).
- Performance characteristics (i.e. U value, wind loading, structural, air, thermal, water, sound).
- Functionality of the window (fixed, double/single hung, pivot, sliding, etc.).
- Type and material (height, width and thickness).
- Hardware elements or group.
- Ironmongery (handles, locks, hinges etc.), which shall be included as data for schedule output.
- Exterior and interior identified by type and by function.
- Unique ID for each element based on the room or space which it is used to enclose.
Roof coverings and openings' configuration, drainage system, and penetrations shall be modelled for modelled
building components.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
Brackets, embeds, fixings, cast-ins, secondary sub-frames shall be modelled.
Update with specific manufacturers information including frame profiles, glazing sub-components.
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 9/38
Appendix C Part 2 - LOD Specification v5.1a 11
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
p CLE Ceiling: Exterior
400 Model ceiling to show overall slope and thickness or system depth of suspended ceiling.
Overall assembly modelled to system thickness including framing.
Penetrations shall be modelled. Type and composition, height, length and width shall be included.
Geometric information included but not limited to dimensions, coordinates, slope, curvature, and offset from other
elements shall be extracted and attached as non-graphic data if requested by AAHK.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
Face material modelled to actual thickness. Structural backing members including bracing/lateral framing/kickers
shall be modelled.
Individual elements of face material shall be modelled.
Structural backing members and all support members (kickers) shall be modelled including all connections.
Expansion or control joints shall be modelled.
500 Refer to Appendix C Part 1 - Introduction .
q CLI Ceiling: Interior
400 Model ceiling to show overall slope and thickness or system depth of suspended ceiling.
Overall assembly modelled to system thickness including framing.
Penetrations shall be modelled. Type and composition, height, length and width shall be included.
Geometric information included but not limited to dimensions, coordinates, slope, curvature, and offset from other
elements shall be extracted and attached as non-graphic data if requested by AAHK.
For claddings, bullnose panels, and other related panelised elements, naming convention shall be set up and the
name based on such convention shall be assigned to each object for identification.
Ceiling suspension grid shall be modelled. Fixtures & housings for light fixtures shall be included for coordination
with electrical system.
Structural backing members including bracing/lateral framing/kickers shall be modelled. Expansion or control
joints shall be modelled to indicate specific width.
All assembly components shall be modelled including tees, hangers, support structure and ceiling tiles.
500 Refer to Appendix C Part 1 - Introduction .
r AST Stairs, Steps
400 Threads, risers, goings shall be modelled accurately to indicate stringers and nosing. Create specific objects or
components for staircases or steps with actual shapes or geometry when the standard default stairs in the BIM
authoring tool are not sufficient.
Stairs and railings, Ramps and railings, Handrails and guardrails shall be modelled.
Stairs shall include headroom clearance requirements for coordination with structure and building services.
Secondary support elements shall be modelled (hangars, brackets etc.). The headroom clearance shall be
visually represented in the form of dynamic envelope (Mass).
Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
s BAL Railing, Balustrade, Handrail, Guardrail
400 Refer to Appendix C Part 1 - Introduction .
Railing support elements shall be modelled, including bracing and other supports.
Geometric information include:
- Model assemblies by type, include railings, posts and supports.
- Horizontal alignment.
- Length and height.
Non-graphic information include:
- Railing type.
- Material type.
- Spacing and clearance requirements.
- Data for materials schedule.
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 10/38
Appendix C Part 2 - LOD Specification v5.1a 12
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
t LAD Access Ladder, Catwalk, Maintenance Platform
400 Refer to Appendix C Part 1 - Introduction .
Railing support elements shall be modelled, including bracing and other supports.
Geometric information include:
- Model assemblies by type.
- Steps railings, posts and supports.
- Stairs and railings.
- Ramps and railings.
- Handrails and guardrails.
Non-graphic information include:
- Data for materials schedule.
500 Refer to Appendix C Part 1 - Introduction .
u SMV Smoke Vent
400 Refer to Appendix C Part 1 - Introduction .
Size, shape and location of elements shall be modelled, including:
- Access/code clearance requirements.
- Shafts and risers.
Size, shape, spacing, and location/connections, including duct, dampers, fittings, and insulation for risers, mains,
and branches shall be modelled.
Size, shape, spacing, and clearances shall be modelled for all hangers, supports, vibration and seismic control
that are utilised in the layout of all risers, mains, and branches.
500 Refer to Appendix C Part 1 - Introduction .
v FST Fire Shutter
w ILA Internal Landscape (hardware only)
x SGD Signage, Direction
y FID Flight Information Display
z BFU Check-in Counter, Transfer Counter, Kiosk
aa BMJ Building Movement Joint
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
ab BMU Building Maintenance Unit
400 System elements shall be modelled by type, including:
- All path of travel/boom swing zones.
- Lay-down/pick-up zones.
- Structural support elements.
- Connections to mechanical or electrical services.
Sizing shall be adjusted to the actual manufacturer specifications. Model shall include guiding tracks/rails and
service/access zones.
All connections, supports, framing, and other supplementary components shall be modelled.
500 Refer to Appendix C Part 1 - Introduction .
ac FUR Furniture, Fixtures & Fittings, including Desks, Workstations, Casework, Cabinets,
Appliances, Loose Equipment
ad FEN Fire Hood/ Enclosure
ae SBA Smoke Curtain or Barrier
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
af SST Sports Equipment
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
ag PCP Planter Cladding Panels
400 Refer to Appendix C Part 1 - Introduction .
Wall element with dimensions and overall thickness including finishes.
Wall objects shall be separated by type of material (e.g. gypsum board vs. masonry).
Finishes materials shall be modelled based on as-built types (tiles, stone, plaster, paint, etc.). Indicative
connection to supporting elements shall be modelled when applicable.
500 Refer to Appendix C Part 1 - Introduction .
ah MOE Means of Egress
400 Unobstructed path to leave the building shall be indicated and compliant to statutory requirement.
The path shall be represented as Mass object with type, length, width, clearance, description and other
dimensional parameters corresponding to statutory submission.
The path shall be represented as Model Line with type and length parameters corresponding to statutory
submission, instead of Detail Lines existing only on sheet layouts.
500 Refer to LOD 400.
Follow the same LOD as below.
Follow the same LOD as below.
APPENDIX C2
C2 11/38
Appendix C Part 2 - LOD Specification v5.1a 13
2 Architecture Model
AAHK Requirements
#
CAT
Code LOD Remarks/ References
ai ADE Dynamic Envelope in Architecture Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 12/38
Appendix C Part 2 - LOD Specification v5.1a 14
3 Structure Model
AAHK's Requirements
a SFO Foundation (pile, pile cap, tie/ground beam & footing)
400 The model shall be updated with as constructed levels.
Geometric information include:
- Bearing depth, foundation depth, pile cut-off depths.
- Location and details of structural movement joints.
- Rebar details in congested location such as tie beam-pile cap connection (refer to the requirement of Rebar).
- Sleeve penetrations.
- Pour joints & Expansion joints.
- All elements need for cross-trade collaboration.
- Chamfer.
- Finish.
- Waterproofing.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Material type and grade.
- Typical details.
- Unique identifier of individual Pile and Pile Cap.
500 Refer to Appendix C Part 1 - Introduction .
b DWL Diaphragm Wall, Retaining Wall
400 The model shall be updated with as constructed levels.
Geometric information include:
- Location, size, shape and orientation of the diaphragm wall and retaining wall.
- Sleeve penetrations.
- Chamfer.
- Finish.
- Waterproofing.
- Wall cut-off depths.
- Pour joints & Expansion joints.
- All elements need for cross trade collaboration.
- Rebar details in congested location such as beam-diaphragm wall connection (refer to the requirement of
Rebar).
- Supplementary components required for fabrication and field installation.
Non-graphic information included:
- Material type and grade.
- Depth of the cover soil.
- Unique identifier of each wall panel include data for concrete strength and reinforcing strength.
500 Refer to Appendix C Part 1 - Introduction .
c ELS Excavation, Lateral Stability System (vertical & Lateral support)
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and shapes of structural components.
- Size, geometry and location of the elements including data for concrete strength and reinforcing strength.
- Connection details between steel members, including cost-in details interfacing with RC structures.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction .
Remarks/ References
#
CAT
Code LOD
APPENDIX C2
C2 13/38
Appendix C Part 2 - LOD Specification v5.1a 15
3 Structure Model
AAHK's Requirements Remarks/ References
#
CAT
Code LOD
d BEM Concrete Beam, Steel Beam, Hanger
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and locations of main structural members modelled per defined structural grid with correct orientation,
slope and elevation.
- All sloping surfaces included in model element.
- Sleeve penetrations.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Movements joint in details and correct locations.
- Rebar details in congested location such as beam-column connection and beam-wall connection (refer to the
requirement of Rebar).
- Camber, chamfers, etc.
- Embeds and cast-ins.
- Structural steel models, welds, coping, all plates, bolts, washers, nuts and assembly elements.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes
- Material types and grades
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
e SCL Concrete Structural Column, Steel Structural Column, Post
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and locations of main structural members modelled per defined structural grid with correct orientation.
- Size and location of corbel and caps.
- Camber, chamfers.
- Typical details.
- Embeds and cast-ins.
- Elements of all connections applied to structural steel connections such as based plates, gusset plates,
stiffeners.
- Rebar details in congested location (refer to the requirement of Rebar).
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
f SWL Structural Wall
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and locations of structural walls modelled per defined structural grid with correct orientation.
- Concrete grade defined as per spec (strength, aggregate size, etc.).
- Sleeve penetrations.
- The walls from structural floor level to soffit of structural slab or beams above.
- Rebar details in congested location such as beam-wall connection (refer to the requirement of Rebar.).
- Connection details between steel, including cast-in details interfacing with RC structures.
- Embeds and cast-ins.
- Any permanent forming or shoring components.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes
- Material types and grades
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 14/38
Appendix C Part 2 - LOD Specification v5.1a 16
3 Structure Model
AAHK's Requirements Remarks/ References
#
CAT
Code LOD
g SLA Slab, Floor, Ramp, Roof
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and locations of main concrete structural members shall be modelled per defined structural grid with
correct orientation.
- All sloping surfaces included in model element.
- Sleeve penetrations.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Movements joint, expansion joint modelled in details and correct locations.
- Rebar details in congested location (refer to the requirement of Rebar.).
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes
- Material types and grades
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
h TRS Transfer Structure (transfer plate, truss)
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and locations of main structural members shall be modelled per defined structural grid with correct
orientation.
- All sloping surfaces included in model element.
- Sleeve penetrations.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Movements joint in details and correct locations.
- Embeds and cast-ins.
- Rebar details in congested location (refer to the requirement of Rebar).
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
i STE Stairs (assembled, monolithic, precast)
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes and locations of main structural members shall be modelled per defined structural grid with correct
orientation.
- Sleeve penetrations.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Movements joint in details and correct locations.
- Embeds and cast-ins.
- Rebar details in congested location (refer to the requirement of Rebar).
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- The type of structural concrete system or steel system.
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
j BRA Bracing
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes of main structural braces modelled per defined structural grid.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- The type of structural bracing system.
- Finishes
- Material types and grades
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 15/38
Appendix C Part 2 - LOD Specification v5.1a 17
3 Structure Model
AAHK's Requirements Remarks/ References
#
CAT
Code LOD
k TMW Temporary Work, Temporary Structure, Platforms
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes of main structural elements modelled per defined structural grid.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Movements joint in details and correct locations.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Material types and grades
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
l TUN Tunnel Structure (tunnel box, subway, utilities tunnel)
400 Geometric information include:
- Location, overall size and geometry of element (roof and based slab, lining, ventilation duct, etc.) that varies
continuously along the alignment.
- Cross-fall and longitudinal fall of the element component.
- Sleeve penetrations.
- Rebar details in congested location (refer to the requirement of Rebar.).
- Movements joint in details and correct locations.
- Location and size of the waterproof membrane.
- Locations of Box-out Openings.
- Construction joints in details and correct locations.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Unique Identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction .
m STS Structural Steel
n SSR Structural Steel Roof
400 The model shall be updated with as constructed levels.
Geometric information include:
- Sizes of main structural braces modelled per defined structural grid.
- Connection details, including cast-in details interfacing with RC structures.
- Elevations and location of member connections.
- Large elements of typical connections applied to all structural steel connections such as based plates, gusset
plates, anchor rods, etc.
- Any miscellaneous steel members with correct orientation.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Fire rating.
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
o ABW ABWF Structure
400 Geometric information include:
- Sizes and locations of main concrete structural members shall be modelled per defined structural grid with
correct orientation.
- All sloping surfaces included in model element.
- Sleeve penetrations.
- Connection details between steel, including cast-in details interfacing with RC structures.
- Movements joint in details and correct locations.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes
- Material types and grades
- Concrete cover to reinforcement.
- Fire rating
- Unique identifier of structural components.
500 Refer to Appendix C Part 1 - Introduction .
p REB Rebar
400 The model shall be updated with as constructed levels.
Geometric information include:
- Rebar elements for critical connection such beam-column connection, beam-wall connection, tie beam-pile cap
connection or other congested areas required by AAHK.
- Other design requirements.
500 Refer to Appendix C Part 1 - Introduction .
q SDE Dynamic Envelope in Structure Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
APPENDIX C2
C2 16/38
Appendix C Part 2 - LOD Specification v5.1a 18
4 Mechanical Ventilation & Air Conditioning Model
AAHK's Requirements
Ductwork
a SAD Supply Air Duct
b FAD Fresh Air Duct
c EAD Exhaust (extract) Air Duct
d RAD Return Air Duct
e TAD Transfer Air Duct
400 Geometric information include:
- Ducts, dampers, fittings with spacing.
- Insulation.
- Floor and wall penetrations.
- Supplementary components for fabrication and field installation.
- Supports and hangers with spacing and clearance.
- Access/ code clearance requirements.
Non-graphic information include:
- System classification and type name.
- Colour code, which are separated for each type elements.
500 Refer to Appendix C Part 1 - Introduction .
Other MVAC
f FAN Fan
400 Geometric information include:
- Supplementary components for fabrication and field installation.
- Supports and hangers with spacing and clearance.
Non-graphic information include:
- System classification and type name.
- Fan label/ designation.
- Fire rating for fan serving staircase pressurisation system and smoke extraction system.
500 Refer to Appendix C Part 1 - Introduction .
g AIR Diffuser, Air-boot, Air Grill, Air Filter, Register
h DAM Damper
i FCU Fan Coil Unit
j AHU Air Handling Unit
k CHL Chiller Plant Unit
l VRV Variable Refrigerant Volume Unit
m COT Cooling Tower
n SAC Split-type Indoor & Outdoor Air Conditioning Unit
o CWS Chilled Water Supply Pipe
p CWR Chilled Water Return Pipe
q CDP Condensate Drain Pipe
r VAI Ventilation / Air Conditioning Control System for FSD: Airside
s VWS Ventilation / Air Conditioning Control System for FSD: Waterside
t INS Insulation
400 Geometric information include:
- Pipes/ ducts, dampers and fittings.
- Insulation for pipes/ ducts.
- Supplementary components for fabrication and field installation.
- Supports and hangers with spacing and clearance.
- Floor and wall penetrations.
Non-graphic information include:
- Fire rating.
- Insulation type, which shall be specified in naming.
- Equipment label.
- System classification and type name.
- Served area/ room name.
- Refrigerant type.
- Cooling capacity.
- Air flow rate.
- Fan motor nominal, compressor motor nominal.
- Fan motor power supply, compressor motor power supply.
- Entering air temperature.
500 Refer to Appendix C Part 1 - Introduction .
u CDW Condensing Water Supply Pipe
v CDR Condensing Water Return Pipe
w SWS Sea Water Cooling Supply Pipe
x SWR Sea Water Cooling Return Pipe
y RFP Refrigerant Pipe
400 Geometric information include:
- Supports, hangers, vibration and seismic controls with spacing and clearance.
- Pipes, valves and fittings with spacing.
- Insulation.
- Slope of condensation pipes.
- Floor and wall penetrations.
- Access/ code clearance requirements.
Non-graphic information include:
- System classification and type name.
- Colour code, which are separated for each type elements.
- Manufacture information, warranty certification, and Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
Remarks/ References
#
CAT
Code LOD
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
APPENDIX C2
C2 17/38
Appendix C Part 2 - LOD Specification v5.1a 19
4 Mechanical Ventilation & Air Conditioning Model
AAHK's Requirements Remarks/ References
#
CAT
Code LOD
z PAU Primary Air Unit
aa MPP Chiller Water Pump, Chilled Water Pump, Cooling Water Pump
400 Geometric information include:
- Pump plinth.
- Supports and hangers with spacing and clearance.
- Fixtures and carriers with spacing.
- Access/ code clearance requirements.
Non-graphic information include:
- Equipment configuration such as voltage, capacity, flow rate.
- Manufacture information, warranty certification, and Testing and Commissioning report.
- System classification and type name.
Non-graphic information of air condition unit include:
- Equipment label.
- Type.
- Served area/ room name.
- Refrigerant type.
- Cooling capacity.
- Air flow rate.
- Fan motor nominal, compressor motor nominal.
- Fan motor power supply, compressor motor power supply.
- Entering air temperature.
Non-graphic information of pump include:
- Equipment label.
- Electrical source of supply.
- Mode of operation.
- Equipment location room name.
- Nominal flow, high flow, low flow.
- Max no. of flow head.
- Pump speed.
500 Refer to Appendix C Part 1 - Introduction .
ab MCP MCC/ LCP for MVAC
ac SED Smoke Extraction System
ad GDS Gas Detection System
ae GES Gas Extraction System including Fan, Ductworks, Damper
af AIC Air Compressor
ag ARE Air Receiver
ah CAP Compressed Air Pipe
400 Geometric information include:
- Pipes/ ducts, valves, dampers and fittings with spacing.
- Insulation.
- Supplementary components for fabrication and field installation.
- Supports, hangers, vibration and seismic controls with spacing and clearance.
- Access/ code clearance requirements.
Non-graphic information include:
- Equipment configuration such as voltage.
- Colour code, which are separated for each type elements.
- Manufacture information, warranty certification, and Testing and Commissioning report.
- Fire rating.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
ai VCD Variable Control Damper
aj FDP Fire Damper
ak MSF Motorised Smoke and Fire Damper
al SIL Silencer
400 Geometric information include:
- Supports, hangers, vibration and seismic controls with spacing and clearance.
- Insulation.
- Access/code clearance requirements.
Non-graphic information include:
- Equipment configuration such as voltage, capacity, flow rate.
- System classification and type name.
- Manufacture information, warranty certification, and Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
APPENDIX C2
C2 18/38
Appendix C Part 2 - LOD Specification v5.1a 20
4 Mechanical Ventilation & Air Conditioning Model
AAHK's Requirements Remarks/ References
#
CAT
Code LOD
am APN Access Panel
an TVF Tunnel Ventilation Fan
ao TJF Tunnel Jet Fan
400 Geometric information include:
- Supports, hangers, vibration and seismic controls with spacing and clearance.
- Access/ code clearance requirements.
Non-graphic information include:
- System classification and type name.
- Equipment configuration such as voltage, capacity, flow rate.
- Manufacture information, warranty certification, and Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
ap AQM Air Quality Monitoring System
400 Geometric information include:
- Supplementary components for fabrication and field installation.
- Hangers, supports and seismic controls with spacing and clearance.
- Access/ code clearance requirements.
Non-graphic information include:
- System classification and type name.
- Equipment configuration such as voltage.
- Manufacture information, warranty certification, and Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
aq MDE Dynamic Envelope in MVAC Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
APPENDIX C2
C2 19/38
Appendix C Part 2 - LOD Specification v5.1a 21
5 Hydraulics (Plumbing and Water Supply) Model
AAHK's Requirements
a FWP Fresh Water Piping
b FLW Flush Water Piping
c GAS Gas Piping
400 Geometric information include:
- Meters.
- Fire rated enclosures.
- Floor and wall penetrations.
- Supplementary components for fabrication and field installation.
- Supports, hangers, vibration, and seismic controls with spacing and clearance.
- Pipes, valves and fittings with spacing.
- Insulation.
- Access/ code clearance requirements.
Non-graphic information include:
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
d VLV Valve
e WAT Water Storage Tank
400 Geometric information include:
- Anchors, supports, vibration and seismic controls with spacing and clearance.
- Access/ code clearance requirements.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Water tank capacity/ volume.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
f PRV Pressure Vessel
g SNK Sink, Washbasin
h TAP Tap, Faucet
i WMT Water Meter
400 Geometric information include:
- Installation clearance.
- Support with spacing and clearance.
- Supplementary components for fabrication and field installation.
Non-graphic information include:
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
j PMP Pump
k CAL Calorifer
l BLR Boiler
m WSH Water Storage Heater
400 Geometric information include:
- Carriers.
- Wall width requirements.
- Fixtures with spacing.
- Hangers and supports with spacing and clearance.
- Access/ code clearance requirements.
- Supplementary components for fabrication and field installation.
Non-graphic information include:
- Equipment configuration such as voltage, capacity and flow rate.
- Equipment label.
- Equipment location room name.
- Electrical source of supply.
- Mode of operation.
- Nominal flow, high flow, low flow.
- Max No. of flow head.
- Pump speed.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
n CWP Cleansing Water Piping
400 Geometric information include:
- Floor and wall penetrations.
- Pipes, valves and fittings with spacing.
- Supports, hangers, vibration and seismic controls with spacing and clearance.
- Insulation.
- Supplementary components for fabrication and field installation.
- Access/ code clearance requirements.
Non-graphic information include:
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 20/38
Appendix C Part 2 - LOD Specification v5.1a 22
5 Hydraulics (Plumbing and Water Supply) Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
o MPW MCC/LCP for Plumbing & Water
400 Geometric information include:
- Supports, hangers, and seismic controls with spacing and clearance.
- Electrical equipment with spacing.
- Supplementary components for fabrication and field installation.
- Access/ code clearance requirements.
Non-graphic information include:
- Manufacture information.
- Unique identifier of warranty certification.
- Unique identifier of Testing and Commissioning report.
- Equipment configuration such as voltage, current, electrical potential and wattage.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
p PDE Dynamic Envelope in Plumbing & Water Supply Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 21/38
Appendix C Part 2 - LOD Specification v5.1a 23
6 Drainage and Sewage Model
AAHK's Requirements
a RWP Rainwater, Storm Water Pipe, Storm Drain
b RWC Surface Channel, Slot Channel, External Drainage
400 Geometric information include:
- Shaft requirements.
- Valves and fittings with spacing.
- Floor and wall penetrations.
- Box-out openings.
- Bedding.
- Extend of the temporary works and working space.
- Supports, hangers, vibration, and seismic controls with spacing and clearance.
- Horizontal alignment, vertical alignment, invert level, slope and spacing of pipe.
- Risers and equipment.
- Insulation.
- Access/code clearance requirements.
Non-graphic information include:
- Type of the pipe.
- Material type.
- Size and thickness of pipe, which shall be specified in pipe settings.
- Unique identifier of pipes, risers and equipment.
- Bedding type.
- Bedding concrete grade.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
c SWP Sewerage Pipe, Foul Sewer Drain
d WCS Toilet Fixture
e PIT Sump or Sewage Pit
f PMP Pump
g GTR Grease Trap
h STP Sand Trap
i KWP Kitchen Waste Pipe Work including Floor Drain, Open Trapped
j GUL Gully, Sealed Trapped Gully, Clean Outs and Vent
k SMH Manhole, Terminal Manhole
400 Geometric information include:
- Box-out openings.
- Supplementary components required for fabrication and field installation.
- Sump depth, internal headroom and shaft of manhole cover.
- Wall thickness.
- Benching size, height and invert level of inlet and outlet pipes.
Non-graphic information include:
- Type of manhole.
- Concrete grade.
- Unique identifier of manhole.
- Equipment label.
- Electrical source of supply.
- Mode of operation.
- Equipment location room name.
- Nominal flow, high flow, low flow.
- Max no. of flow head.
- Pump speed.
500 Refer to Appendix C Part 1 - Introduction .
l FLD Floor Drain
m RWO Rainwater Outlet
400 Geometric information include:
- Supplementary components for fabrication and field installation.
- Anchors/ supports/ vibration/ seismic controls with spacing and clearance.
- Horizontal alignment and vertical alignment.
- Access/code clearance requirements.
Non-graphic information include:
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
n PEI Petrol Oil Interceptor
400 Geometric information include:
- Openings.
- Supplementary components required for fabrication and field installation.
- Sump depth, internal headroom and shaft of cover.
- Benching size, height and invert level of inlet and outlet pipes.
Non-graphic information include:
- Concrete grade.
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 22/38
Appendix C Part 2 - LOD Specification v5.1a 24
6 Drainage and Sewage Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
o SSP Submersible Sump Pump
400 Geometric information include:
- Supplementary components required for fabrication and field installation.
- Fixtures and carries with spacing.
- Supports with spacing and clearance.
- Access/code clearance requirements.
- Carrier and wall width requirements.
Non-graphic information include:
- Equipment configuration such as voltage, capacity, flow rate.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
p DVL Valve (gate valve, non-return valve etc.)
400 Geometric information include:
- Fittings.
- Insulation.
- Spacing and clearances requirements.
- Access/code clearance requirements.
Non-graphic information include:
- Manufacture information, warranty certification, and Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
q VTP Vent Pipe
400 Geometric information include:
- Box-out openings.
- Bedding.
- Extend of the temporary works and working space.
- Supports, hangers, vibration, and seismic controls with spacing and clearance.
- Pipes with slope and spacing.
- Valves and fittings with spacing.
- Floor and wall penetrations.
- Horizontal alignment, vertical alignment and invert level of pipe.
- Shaft requirements.
- Access/code clearance requirements.
Non-graphic information include:
- Bedding type.
- Bedding concrete grade.
- Type of the pipe.
- Material type.
- Size and thickness of pipe, which shall be specified in pipe settings.
- Unique identifier of pipe, risers and equipment.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
r DDE Dynamic Envelope in Drainage & Sewage Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 23/38
Appendix C Part 2 - LOD Specification v5.1a 25
7 Fire Services Model
AAHK's Requirements
a AAD Automatic Actuating Device
b DRE Drencher System
c DDS Dust Detection System
d AFA Fire Alarm System, Gongs & Break Glass Unit
e SHD Fire Detection System, Heat or Smoke Detectors
f FHR Fire Hydrant/ Hose Reel System
g FAA Fixed Automatically Operated Approved Appliance
400 Geometric information include:
- Mains/riser/equipment.
- Access clearance requirements.
- Equipment and associated components with spacing.
- Supports and seismic control with spacing and clearance.
- Equipment and support structure/pads.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- System classification and type name.
- Manufacture information, warranty certification, Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
h PAA Portable Hand-operated Approved Appliance, Fire Extinguisher
400 Geometric information include:
- Fixtures with spacing.
Non-graphic information include:
- Manufacture information, warranty certification, Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
i RMS Ring Main System with Fixed Pump
j SPR Sprinkler Pipe Work
k SPH Sprinkler Head
l SPV Sprinkler Valve & Flow Switch
m SPT Sprinkler Supply Tank
n SPP Sprinkler Pump
o SFH Street Fire Hydrant System
p FSP Fire Service Water Pump
q FSK Fire Service Tank
r GFE Gaseous Extinguishing System/ Clean Agent Suppression System
s FFP Fixed Foam Pump
400 Geometric information include:
- Fixtures and carriers with spacing.
- Mains, risers and equipment.
- Supports with spacing and clearance.
- Shafts and riser requirements.
- Access/code clearance requirements.
- Supplementary components for fabrication and field installation.
Non-graphic information include:
- Equipment label.
- Electrical source of supply.
- Mode of operation.
- Equipment location room name.
- Nominal flow, high flow, low flow.
- Max no. of flow head.
- Pump speed.
- Equipment configuration such as voltage, capacity, flow rate.
- Manufacture information, warranty certification, Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
t FPW Fixed Foam Pipework
u FBT Fixed Foam Bladder Tank
400 Geometric information include:
- Elements with connections and spacing.
- Supports, hangers, anchors, vibration, and seismic controls with spacing and clearance.
- Supplementary components required for fabrication and field installation.
- Access/code clearance requirements.
Non-graphic information include:
- Water tank capacity/volume parameters.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 24/38
Appendix C Part 2 - LOD Specification v5.1a 26
7 Fire Services Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
v GFS Gas Flooding System, Pipe, Cylinder
400 Geometric information include:
- Hangers and supports with spacing.
- Insulation.
- Clearance requirement of elements.
- Mains, fitting, risers and equipment.
- Shafts and riser requirements.
- Access requirements.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Colour code separated for each type elements.
- Equipment configuration such as voltage, capacity, flow rate.
- Manufacture information, warranty certification, Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
w FDE Dynamic Envelope in Fire Services Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
APPENDIX C2
C2 25/38
Appendix C Part 2 - LOD Specification v5.1a 27
8 Electrical Model
AAHK's Requirements
a CAB Cable Tray, Cable Containment, Power Feed
400 Geometric information include:
- Equipment and associated components.
- Supports, hangers, and seismic controls with spacing and clearance.
- Raceways, boxes, enclosures, and equipment with spacing.
- Access/code clearance requirements.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Numbers of cable/conduit and their uses or link the detail sections to model as a callout view, providing detail
descriptions for cable/conduit arrangement.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
b COD Armoured Cables, Conduit
c CCC Concealed and Cast-in Place Conduit
400 Geometric information include:
- Conduit and cable with spacing.
Non-graphic information include:
- Numbers of cable/conduit and their uses or link the detail sections to model as a callout view, providing detail
descriptions for cable/conduit arrangement.
- Manufacture information, warranty certification, Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
d TRK Trunking, Bus duct, Busbar, Busway
400 Geometric information include:
- Raceways, boxes, enclosures and equipment with spacing.
- Equipment and associated components.
- Supports, hangers, and seismic controls with spacing and clearance.
- Access/code clearance requirements.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
e GEN Generator or Emergency Generator
f EXH Generator Exhaust Flue incl. Acoustic Treatment
g FUL Diesel Tank & Fuel Pipes for Emergency Generator
h MET Electric Meter
i TRM Transformer
j BRD Switch Board, Switchgear
k PAN Panel Board, Motor Control Centre
l SWT Outlet, Panel, Wall Switch, Circuiting to Device, Security Device, Card Access and “plug
mould” (socket point) ,Lighting Switch, Power Socket
m LGD Light Fitting
n EML Emergency Lighting
o EPP Emergency Power Point
p EXI Exit Sign
400 Geometric information include:
- Supports, hangers and seismic control with spacing and clearance.
- Lighting fixtures with spacing.
- Access/code clearance requirements.
Non-graphic information include:
- Lamp source information like watt, colour temperature, type, lumen output per lamp.
- Lighting fixture configuration such as voltage, wattage, efficacy, lamp, luminous flux.
- Index of protection such as IP65, IP20, etc.
- Description of luminaire.
- Mounting method.
- Manufacture information, warranty certification, Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
q DDC BMS System incl. DDC Panel, I/O Panel, Field Control Units
r SCA SCADA System Sensor, Control Panel
s ETH Earth Tap, Well Joint, Earth Bar, Earth Pit
t UPS Uninterruptible Power Supply (UPS) System, Switchboard, Battery
u EVC EV Charger Point
v STC Service Trench for Fuel Pipe of Generator System
w UCT Underground Cable Trench for LV/HV Transformer Room/ Switch Room
400 Geometric information include:
- Box-out openings.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Numbers of cable/conduit and its uses.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 26/38
Appendix C Part 2 - LOD Specification v5.1a 28
8 Electrical Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
x EAT Earthing and Lightning System incl. Mat Terminal/ Tape / Earthing Pit, etc.
y CPB Capacitor Bank
z AHF Active Harmonic Filter
aa ATS Automatic Transfer Switches (ATS)
ab ISO Isolator
ac CCP Cable Link Box
ad WLD Water Leakage Detection System
ae MBS Multimedia Broadcast Multicast Services (MBMS)
af AVS Audio/visual advisory system
400 Geometric information include:
- Supports, hangers and seismic control with spacing and clearance.
- Access/code clearance requirements.
Non-graphic information include:
- Manufacture information, warranty certification, Testing and Commissioning report.
- Equipment configuration includes but not limited to voltage, current, electrical potential, wattage.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
ag EDE Dynamic Envelope in Electrical Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
APPENDIX C2
C2 27/38
Appendix C Part 2 - LOD Specification v5.1a 29
9 Special Airport Systems Model
AAHK's Requirements
Lifts & Escalators
a LIF Elevator System(by lift supplier)
b ESC Escalator
c EMS Moving Walkway
400 System elements shall be modelled by type, including all path of travel zones.
Geometric information include:
- Size adjusted to the actual manufacturer specifications.
- Guiding tracks/rails service/access zones.
- All connections, supports, framing, and other supplementary components.
- Pits and/or control rooms and associated equipment if applicable.
- Connections to mechanical or electrical services.
- The system envelope, including critical path of travel zones.
Non-graphic information include:
- Type code (referenced in specifications).
- Clear width, depth, height.
500 Refer to Appendix C Part 1 - Introduction .
APM
BHS
ba EIM Equipment including motors
bb BAG Baggage envelope
bc PSS Preliminary support structure
bd CWK Catwalk
be ACZ Access zone
bf EGP Egress path
400 Geometric information include:
- Equipment and associated components.
- Spacing and clearance requirements for all supports and seismic controls.
- Supplementary components required for fabrication and field installation.
500 Refer to Appendix C Part 1 - Introduction .
Indoor Airport Systems
ca CAB Cable tray
cb CAM CCTV system including CCTV camera, control and monitor equipment
cc PFM Passenger Flow Management System (PFMS) Camera
cd SPK Public Address System, speaker
ce TMR Trunked Mobile Radio (TMR) System, antenna
cf WLS Wireless system (antenna)
cg TBE TBE system (mobile antenna)
ch ACS Access Control System incl. smart card access panel, card reader, door interface unit (DIU)
ci WLN Wireless LAN System (WNET) Access Point and Antenna
cj MATMaster Antenna Television (MATV) system including MATV distribution frame (MTF), TV outlet
ck FIS Flight Information Display System (field display unit)
cl AMD Arrival Message Display System (AMDS) (field display unit)
cm DSD Dynamic Signage Display System (DSDS) (field display unit)
cn UDS Universal Display System (UDS) (field display unit)
co WID Web-based Information Display System (WIDS) (field display unit)
cp EKI e-Directory Kiosk (field display unit)
cq PFD Personnel FIDS (field display unit)
cr IBE iBeacon Enabled Passenger Services (iBeEPS)
cs VDC Voice and data Cabling System incl. HDF/FDF/TDF, Voice and Data Outlet (VDO)
ct CUS Airline Check-in Systems - Common User Terminal Equipment (ACIS-CUTE) workstation
cu BDS Airline Check-in Systems - Self Bag Drop (ACIS-SBD) System
cv TEL Telephones incl. VDO, public pay telephones APABX phones, courtesy phones, help phones
etc.
cw IUS iCommon User Self-Service (Icuss) (field unit)
cx CAP Carpark control system, barrier gate, sensor, control panel, etc.
400 Geometric information include:
- Electrical equipment with spacing.
- Hangers/ supports/ seismic controls with spacing and clearance.
- Access/code clearance requirements.
Non-graphic information include:
- Manufacture information, warranty certification, Testing and Commissioning report.
- Equipment configuration includes but not limited to voltage, current, electrical potential, wattage.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 28/38
Appendix C Part 2 - LOD Specification v5.1a 30
9 Special Airport Systems Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ ReferencesAirfield Facilities Apron/ Airfield System
da FGP Fixed Ground Power (FGP) System incl. link box, main cable, stand type/mounted type
equipment, control panel, converter pit, frequency converter
db APA Aircraft Parking Aids (APA) System incl. APA stand number Indicator, optical transmitter,
operation station, equipment box, hydraulic cylinder
dc PCA Stand Power and PCA Systems
dd EVS Electric Vehicle Charging System
de AGL Airfield Ground Lighting System incl. runway lighting fixture transformer housing, cable draw
pit, cable duct, current regulator, circuit isolator, etc.
df ALW Airport Lighting Warning System (ALWS) – lighting warning display, surge arrestor & RTU,
signal distribution controller, server and workstation, warning lights
dg ANE AA Anemometer (ANEM) System incl. wind-speed speed & director transmitter, surge arrestor
& transceiver
dh FOD Foreign Object Debris Detection (FOD) System incl. FOD camera & transceiver
di IDS Intrusion Detection and Surveillance System (IDSS)
dj SPM Sub Pavement Monitoring System (SPMS) incl. sensor, data logger & transceiver
dk BCS Wildlife/Bird Control System (BCS) including sound repellent system, local control panel
dl PAL PA-link System incl. PA speaker, amplifier, DSP microphone & paging console
dm ACA Aircraft Crash Alarm System (ACAS) incl. call-out button, call-out alert light, relay panel &
transceiver
dn GPS GPS GSE Tracking System (GPS) incl. RFID reader, equipment box, spur unit
do LCS Tunnel Traffic Lane Control System (LCS) – traffic signage, PLC, local control panel &
transceiver
400 Geometric information include:
- Horizontal alignment, vertical alignment and invert level of cable duct.
- Cable duct concrete surrounding.
Non-graphic information include:
- Element type (floor stand or mounted)
- Other AA asset required parameters for maintenance.
- Manufacture information, warranty certification, Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
dp APG Aircraft Parking Aids (APA) System incl. Gantry, Marshalling Platform
400 Geometric information include:
- Structural elements.
- Connection details.
- Elevations and location of member connections.
- Large elements of typical connections which applied to all structural steel connections such as based plates,
gusset plates, anchor rods, etc.
- Any miscellaneous steel members.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Material.
- Manufacture information, warranty certification, Testing and Commissioning report.
500 Refer to Appendix C Part 1 - Introduction .
dq ASC Airfield SCADA System incl. I/O panel, RTU and transceiver, LV switchboard, drainage control
panel, SCADA filed control unit, relay panel
dr TCS Traffic Control and Surveillance System (TCSS) incl. control and display panel, server,
workstation
ds TCC CCTV System camera, TCSS Camera
dt CWD Indoor display and control panel, workstation for all kinds of airport systems
400 Geometric information include:
- Electrical equipment with spacing.
- Hangers/ supports/ seismic controls with spacing and clearance requirements.
- Supplementary components required for fabrication and field installation.
- Access/code clearance requirements.
Non-graphic information include:
- Equipment configuration includes but not limited to voltage, current, electrical potential, wattage.
- Manufacture information, warranty certification, Testing and Commissioning report.
- System classification and type name.
500 Refer to Appendix C Part 1 - Introduction .
du XDE Dynamic Envelope in Special Systems Model
400 Refer to Appendix C Part 1 - Introduction .
500 Refer to Appendix C Part 1 - Introduction .
Follow the same LOD as below.
APPENDIX C2
C2 29/38
Appendix C Part 2 - LOD Specification v5.1a 31
10 Underground Utilities Model
AAHK's Requirements
Gravity / Pumped Foul Sewerage / Manholes / Gully
a TMP Pressurize Foul/ Sewerage Pipes (site wide)
400 Geometric information include:
- Horizontal alignment, vertical alignment and sizing, generic materials for sewerage piping.
- Location, size, shape, sump depth, internal headroom and shaft of manhole cover.
- Wall thickness.
- Benching size, height and invert level of inlet and outlet pipes.
- Size and shape of thrust blocks for spigot joint.
- Size and shape of the components (such as valve, control box, etc.) inside the chamber to check the space and
orientation.
- Locations of box-out openings.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Type of Manhole/inspection pit.
- Material types and grades
- Unique identifier of Manhole/inspection pit.
Drainage: pipes at intervals and at every vertical and horizontal bend, inspection openings, pits/ manholes and
chambers, roof water drainage (downpipes, small pits/ grates), manhole invert forms shall be filled out and
implemented into a port provided invert Excel spreadsheet.
Storm Water and Sanitary Sewers: existing lines , boxes and structures within project area, All new lines, boxes
and structures (regardless of diameter), existing public lines, boxes and structures beyond the project area but
serving as points of connection for the project.
Sewer (note whether gravity or rising main): pipes, inspection openings, pits/ manholes and chambers, vent
pipes, pump stations and associated components, MH invert forms will be filled out and implemented into an
invert Excel spreadsheet.
Other requirements:
- Quantities: data to reflect accurate quantities of the above elements.
- Schedules: data for installation of the above elements.
500 Refer to Appendix C Part 1 - Introduction.
b TMG Gravity Foul/ Sewerage/ Manholes/ Pipes (site wide)
c TMH Other Connection Point, Manhole, Inspection Pit
400 Geometric information include:
- Horizontal alignment, vertical alignment and sizing, generic materials for sewerage piping.
- Locations of box-out openings.
- Supplementary components required for fabrication and field installation.
- Location, size, shape, sump depth, internal headroom and shaft of manhole cover.
- Wall thickness.
- Benching size, height and invert level of inlet and outlet pipes.
Non-graphic information include:
- Type of manhole/inspection pit.
- Material types and grades.
- Unique identifier of manhole/inspection pit.
Drainage: pipes at intervals and at every vertical and horizontal bend, inspection openings, pits/ manholes and
chambers, roof water drainage (downpipes, small pits/ grates), manhole invert forms shall be filled out and
implemented into a port provided invert Excel spreadsheet.
Storm Water and Sanitary Sewers: existing lines, boxes and structures within project area, All new lines, boxes
and structures (regardless of diameter), existing public lines, boxes and structures beyond the project area but
serving as points of connection for the project.
Sewer (note whether gravity or rising main): pipes, inspection openings, pits/ manholes and chambers, vent
pipes, pump stations and associated components, Manhole invert forms shall be filled out and implemented into
an invert Excel spreadsheet.
Other requirements:
- Quantities: data to reflect accurate quantities of the above elements.
- Schedules: data for installation of the above elements.
500 Refer to Appendix C Part 1 - Introduction.
d SGU Gully
400 Existing Surface: Added definition from supplemental survey, revised limits of work.
Proposed Surface: Added definition including curbs, hardscape, finish surface at building envelopes (to
correspond to stem walls/deepened footings).
Geometric information include:
- Internal height of gully/gully former.
- Location and orientation of outlet pipe to main drain.
- Spacing and clearance requirements.
- Location and size of gully grating.
- Concrete surround.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Gully type.
- Material type and grade.
- Unique identifier of Gully.
- Direction of Gully Grating.
500 Refer to Appendix C Part 1 - Introduction.
#
CAT
Code LOD Remarks/ References
Follow the same LOD as below.
APPENDIX C2
C2 30/38
Appendix C Part 2 - LOD Specification v5.1a 32
10 Underground Utilities Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
Electrical Line by CLP (11kV & 380V)
e ELC Electrical Line by CLP
Electrical Line by CLP (132kV)
f ELH CLP 132kV
Electrical Line by Authority (11kV & 380V)
g ELA Electrical Line by Authority
Electrical Line by Emergency Backup (11kV & 380V)
h ELP AA Power Cable (backup)
i ELF Fence Lighting Cable
j ELM Metering Duct
k ELG Airfield Ground Lighting
l ELR Road Lighting
m ELI Road Lighting Cable
n ELS Stand Gantry
o ELN Stand Anchor
p ELB Stand Barrier
q ELU Other Electrical Supply Cable, Trench, Power Distribution System
400 Geometric information include:
- Size and thickness of duct.
- Spacing and clearance requirements
- Horizontal alignments, vertical alignments, invert levels, size and thickness of pipes (including cut pipe, short
pipe and full length pipe) in every section of pipe system.
- Joints and fittings for mains and branches.
- Locations of box-out openings.
- Size and shape of bedding.
- Extend of the temporary works and working space.
- Size of cable duct concrete surrounding.
Non-graphic information include:
- Bedding type.
- Bedding concrete grade.
- Type of the pipe.
- Material type and grade.
- Unique identifier of duct.
- Unique identifier of equipment.
- Numbers of cables for the ducting and their uses.
Other requirements:
- Quantities: data to reflect accurate quantities of the above elements.
- Schedules: data for installation of the above elements.
500 Refer to Appendix C Part 1 - Introduction.
Gas Supply Main, Piping, Valve
r AFL Aviation Fuel Lines and Chambers
s GAS Gas Supply Main, Piping, Valve
t GAI Oil Interception
u TGS Town Gas Pipes
400 Geometric information include:
- Location and size of valves and equipment.
- Size and shape of thrust blocks for spigot joint.
- Size and shape of the components (such as valve, control box, etc.) inside the chamber to check the space and
orientation.
- Spacing and clearance requirements.
- Horizontal alignments, vertical alignment, invert levels, size and thickness of pipes (including cut pipe, short
pipe and full length pipe) in every section of pipe system.
- Joints and fittings for mains and branches.
- Locations of box-out openings.
- Size and shape of bedding.
- Extend of the temporary works and working space.
Non-graphic information include:
- Type of the pipe.
- Material types and grades.
- Unique identifier of pipe.
- Unique identifier of valves and equipment.
- Bedding type.
- Bedding concrete grade.
Fuel: top of pipes every fifty feet including horizontal and vertical bends, all weld points with weld numbers
documented in the point description and in the field notes, pits/ manholes and chambers, valves, hydrants, earth
points, test points.
Compressed Air: pipes, hoses and other fixtures.
Gas: pipes, valves, tanks, meters.
Other requirements:
- Quantities: data to reflect accurate quantities of the above elements.
- Schedules: data for installation of the above elements.
500 Refer to Appendix C Part 1 - Introduction.
Follow the same LOD as below.
Follow the same LOD as below.
APPENDIX C2
C2 31/38
Appendix C Part 2 - LOD Specification v5.1a 33
10 Underground Utilities Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
Water Line
v WSW Potable Water Line
w WSP Fire Hydrant
x WSF Chilled Water Line
y WSI Irrigation Water Line
z WSS Sea Water Line
aa WSG Grey Water Line
ab WSR Raw Water Line
ac WSL Glycol Line
ad WST Stormwater Drainage
ae WSM Other Water Supply Main, Control Valve
400 Geometric information include:
- Location and size of valves and equipment.
- Size and shape of thrust blocks for spigot joint.
- Size and shape of the components (such as valve, control box, etc.) inside the chamber to check the space and
orientation.
- Spacing and clearance requirements.
- Horizontal alignments, vertical alignment, invert levels, size and thickness of pipes (including cut pipe, short
pipe and full length pipe) in every section of pipe system.
- Joints and fittings for mains and branches.
- Locations of box-out openings.
- Size and shape of bedding.
- Extend of the temporary works and working space.
Non-graphic information include:
- Type of the pipe.
- Material type.
- Unique identifier of pipe.
- Unique identifier of valves and equipment.
- Bedding type.
- Bedding concrete grade.
Water (differentiate between potable and recycled): pipes, pits/ manholes and chambers, valves (and type),
meters, taps, hydrants, tanks, pumps, irrigation control.
Other requirements:
- Quantities: data to reflect accurate quantities of the above elements.
- Schedules: data for installation of the above elements.
500 Refer to Appendix C Part 1 - Introduction.
Underground Telecommunication System
af UTT Telephone by Public Carrier
ag UTC Communications by the Authority
ah UTL Other Underground Telecommunication System
400 Geometric information include:
- Location of the containments, risers, switch boards.
- 3D alignment and size of cable duct concrete surrounding.
- Horizontal and vertical alignment and size of cable trucking.
- Size and thickness of cable.
- Location of equipment, containments, risers, switch board.
- Spacing and clearance requirements.
- Size, shape, and location of raceways/ boxes/enclosures/duct banks in the power distribution system.
- Size, shape, and location for supports and seismic control.
- Size, shape, and location/connections of equipment and support structure/pads.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Unique identifier of cables.
- Unique identifier of equipment.
- Numbers of cables for the ducting.
- Material type and grade.
500 Refer to Appendix C Part 1 - Introduction.
Pits and Ducts System
ai PTE Telecommunication Pits and Duct
aj PCO Communications Pits and Ducts
ak PPO Power Pits and Ducts Systems
al PCL CLP Pits and Ducts Systems
400 Geometric information include:
- Location, size, shape, sump depth, internal headroom and shaft of pits and ducts cover.
- Wall thickness.
- Size and height of benching.
- Locations of box-out openings.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Type and unique identifier of pits /ducts.
- Material type and grade.
500 Refer to Appendix C Part 1 - Introduction.
am UDE Dynamic Envelope in Underground Utilities
400 Refer to Appendix C Part 1 - Introduction.
500 Refer to Appendix C Part 1 - Introduction.
Follow the same LOD as below.
Follow the same LOD as below.
Follow the same LOD as below.
APPENDIX C2
C2 32/38
Appendix C Part 2 - LOD Specification v5.1a 34
11 Highway, Bridge and Other Civil Works Model
AAHK's Requirements
Bridge/ Footbridge
a PIR Bridge Column/ Pier
400 The model shall be updated with as constructed levels.
Geometric information include:
- Size and location of piers modelled per defined grid with correct orientation.
- Size and location of soffit.
- Camber, chamfers.
- Typical details.
- Embeds and cast-ins.
- Location and size of bearings component.
- Rebar details in congested location. (Refer to the requirement of Rebar)
- Locations of construction joints.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Unique identifier of column/pier.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
b ABT Bridge Abutment
400 The model shall be updated with as constructed levels.
Geometric information include:
- Location, size and shape of the abutment, wing-walls, and back-wall.
- Location and shape of the compacted and granular filled.
- Camber, chamfers.
- Typical details.
- Embeds and cast-ins.
- Location and size of Bearings component.
- Rebar details in congested location (Refer to the requirement of Rebar).
- Location of construction joints.
- Location of movement joints.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Compacted filled and granular fill material.
- Unique identifier of the abutment.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
c PBS Precast Bridge Segment
400 The model shall be updated with as constructed levels.
Geometric information include:
- Locations of construction joints.
- Locations of expansion joints.
- Locations of box-out openings, gully, catch pits and downpipes, recess and drainage pipes.
- Location and size of reinforcements.
- Control points for the segment launching.
- Size and location of the openings, blister for pre-stress tendon.
- Supplementary components required for fabrication and field installation.
- Reinforcing post-tension profiles and strand locations.
- Rebar details in congested location. (Refer to the requirement of Rebar)
- Pour joints and sequences to help identify reinforcing lap splice locations, scheduling, etc.
- Expansion joints.
- Lifting devices
- Embeds and anchor rods.
- Penetrations for items such as building services.
- Any permanent forming or shoring components.
- Location, overall size and geometry (top slab, bottom slab, parapet, profile barrier, etc.) of element that varies
continuously along the 3D setting out alignment (horizontal alignment and vertical alignment)
- Size and location of the surfacing materials.
- Cross-fall and longitudinal fall of the element components.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Concrete cover to reinforcement.
- Unique identifier of the bridge segment.
- Unique identifier of the segment type.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
#
CAT
Code LOD Remarks/ References
APPENDIX C2
C2 33/38
Appendix C Part 2 - LOD Specification v5.1a 35
11 Highway, Bridge and Other Civil Works Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
d STB Steel Bridge Segment
400 Geometric information include:
- Overall size and geometry of structural elements along the 3D alignment (horizontal alignment and vertical
alignment).
- Cross-fall and longitudinal fall of the element components.
- Typical details.
- Stiffeners.
- Exact sloping of members.
- Splits between plate girders.
- Locations of box-out openings, gully, catch pits and downpipes, recess and drainage pipes.
- Location of construction joints.
- Location of expansion joints.
- Control points for the segment erection.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes
- Material types and grades
- Unique identifier of bridge system.
- Unique identifier of construction bay.
Straight or curved members shall be specified and incorporated. Steel connection details including cast-in details
interfacing with RC structures shall be modelled. Movements joint shall be modelled in details and correct
locations.
500 Refer to Appendix C Part 1 - Introduction.
e DCK Bridge Deck
f BFD Bridge Foundation
g BBG Bridge Bearing
h BGD Bridge girder
i BJT Bridge Joint
j SLP Steel parapet
k CPT Concreate parapet
400 The model shall be updated with as constructed levels.
Geometric information include:
- Size and location of main structural members modelled per defined structural grid with correct orientation.
- Rebar details in congested location. (Refer to the requirement of Rebar)
- Embeds anchor rods and cast-ins.
- Reinforcing post-tension profiles and strand locations.
- Pour joints and sequences to help identify reinforcing lap splice locations, scheduling, etc.
- Expansion joints.
- Lifting devices
- Penetrations for items such as building services.
- Location, overall size and geometry (top slab, bottom slab, parapet, profile barrier, etc.) of element that varies
continuously along the 3D setting out alignment (horizontal alignment and vertical alignment)
- Size and location of the surfacing materials.
- Cross-fall and longitudinal fall of the element components.
- Any permanent forming or shoring components.
- Location of construction joints.
- Location of expansion joints.
- Control points for the segment erection.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
Highway
l ROD Road, Grading (refer to site, carriageway)
400 Geometric information include:
- Location of construction joints.
- Location of movement joints.
- Location of box-out openings.
- Alignment, design profile, existing ground profile and typical cross sections (pavement, curb, sidewalk,
shoulder, side slope etc.).
- Size and geometry of every layer of pacing components (frication course, wearing course, based-course, road-
based, sub-based, subgrade, etc.) that varies continuously along the road alignment.
- Super-elevation and longitudinal fall of the pavement components.
- 3D corridor with consistent 3D solid model.
- Surface model synchronized with corridor model for each layer of pacing components.
- Line and road markings.
- Openings for drains and other services.
Non-graphic information include:
- Material types and grades.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
Follow the same LOD as below.
APPENDIX C2
C2 34/38
Appendix C Part 2 - LOD Specification v5.1a 36
11 Highway, Bridge and Other Civil Works Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
m LGT Lighting along Road
400 Geometric information include:
- Pole bases and footing elements.
- Lighting fixtures.
- Supports/seismic controls.
- Equipment with connections and support structure/pads.
- Access/code clearance.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction.
n STF Street and Outdoor Furniture
400 Geometric information include:
- All applicable service or installation clearances.
- All applicable hardware, support or connection points.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction.
o PIB Pillar Box
400 Geometric information include:
- Access/code clearance.
- Equipment and associated components.
- Allowances for spacing and clearances required for all specified supports and seismic controls.
- Equipment and associated components with clearance which shall be visually represented in the form of
dynamic envelope (Mass).
- Supports and seismic controls with clearance which shall be visually represented in the form of dynamic
envelope (Mass).
- Equipment with connections and support structure/pads.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Design performance parameters as defined in the project execution plan.
- Finishes.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction.
p RCA Parking Stalls
400 Geometric information include:
- Alignment to surface and relationship to pavement/curb/sidewalk/shoulder/side slope in 3D.
- Size and geometry which shall be modelled by type (perpendicular, parallel, angled, handicapped).
- Code-required spacing.
- Graphic width of painting lines and wheel stopper.
- Dynamic envelope showing height clearance / headroom for indoor parking stalls.
- Markings and painting patterns.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Type information (perpendicular, parallel, angled, handicapped).
- Parking stall number as constructed/painted.
500 Refer to Appendix C Part 1 - Introduction.
q RLP Road light post, bracket and lantern
r RLD Road lighting drawpit and earthing pit
s ACG Access gate Follow the same LOD as FEG -
Security Fence - Access gate
t RCC Crash cushions
400 Geometric information include:
- All applicable service or installation clearances.
- All applicable hardware, support or connection points.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Finishes.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction.
Follow the same LOD as LGT -
Lighting along Road
APPENDIX C2
C2 35/38
Appendix C Part 2 - LOD Specification v5.1a 37
11 Highway, Bridge and Other Civil Works Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
u RBF Barrier fences
v RPT Concrete parapet
w RMG Road markings
400 Geometric information include:
- Shape, size, thickness, length, location and orientation.
- Lines includes continuous lines, intermittent lines, double lines, ancillary lines, chevrons, zig-zag lines and the
like.
- Letters, characters, figures, symbols, arrows and the like.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Type of marks.
- Gaps for intermittent lines.
- Thickness of letter, characters figures, symbols and lines.
- Material colour, types and grades.
500 Refer to Appendix C Part 1 - Introduction.
x TRB Traffic bollard Follow the same LOD as BOL
- Bollard
y SGT Sign Gantries Follow the same LOD as STS -
Structural Steel
z FTW Footways and paved area Follow the same LOD as ROD -
Road, Grading
aa TRS Traffic sign, directional sign Follow the same LOD as SGN -
Signage
Taxiway & Other Airfield Road Way
ba TXW Taxiway/ Taxilane/ Runway
400 Geometric information include:
- Alignment, design profile, existing ground profile and typical cross sections (pavement, curb, sidewalk,
shoulder, side slope etc.).
- Size and geometry of every layer of pacing components (frication course, wearing course, based-course, road-
based, sub-based, subgrade, etc.) that varies continuously along the road alignment.
- Super-elevation and longitudinal fall of the pavement components.
- 3D corridor with consistent 3D solid model.
- Surface model synchronized with corridor model for each layer of pacing components.
- Line and road markings.
- Location of construction joints.
- Location of movement joints.
- Location of box-out openings.
Non-graphic information include:
- Unique identifier of construction bay.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction.
bb ARW Airfield Roadway
400 Geometric information include:
- Alignment, design profile, existing ground profile and typical cross sections (pavement, curb, sidewalk,
shoulder, side slope etc.).
- Size and geometry of every layer of pacing components (frication course, wearing course, based-course, road-
based, sub-based, subgrade, etc.) that varies continuously along the road alignment.
- Super-elevation and longitudinal fall of the pavement components.
- 3D corridor with consistent 3D solid model.
- Surface model synchronized with corridor model for each layer of pacing components.
- Location of construction joints.
- Location of Movement joints.
- Location of box-out openings.
- Line and road markings.
- Supplementary components required for fabrication and field installation.
Non-graphic information include:
- Unique identifier of construction bay.
- Material types and grades.
500 Refer to Appendix C Part 1 - Introduction.
Follow the same LOD as RBR -
Rigid Barrier
APPENDIX C2
C2 36/38
Appendix C Part 2 - LOD Specification v5.1a 38
11 Highway, Bridge and Other Civil Works Model
AAHK's Requirements
#
CAT
Code LOD Remarks/ References
Landside Road & Airside Road
ca RBA Profile Barrier, Beam Barrier, Kerbs, Parapet, Traffic Islands
400 The model shall be updated with as constructed levels.
Geometric information include:
- Size and geometry of every construction layer that varies continuously along the 3D road alignment.
- Cross-fall and longitudinal fall of the elements components.
- Location and size of the foundation concrete.
- Openings for drains and other services modelled for parking lot pavement.
- Location and size of the parapet rail and post.
- Camber, chamfers.
- Expansion joints
- Typical details.
- Embeds and cast-ins.
- Rebar details in congested location (Refer to the requirement of Rebar).
- Locations of construction joints.
- Locations of movement joints.
- Locations of box-out openings.
Non-graphic information include:
- Material types and grades.
- Concrete cover to reinforcement.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
da CDE Dynamic Envelope in Civil Works Model
400 Refer to Appendix C Part 1 - Introduction.
500 Refer to Appendix C Part 1 - Introduction.
APPENDIX C2
C2 37/38
Appendix C Part 2 - LOD Specification v5.1a 39
12 Marine Works Model
AAHK's Requirements
a SEA Seawall
400 Geometric information include:
- Overall size and geometry of every layer of elements that varies continuously along the 3D alignment.
- Location, size and shape of individual seawall block.
- Gradient of filled sloping surface.
- Gradient of seawall block placement.
- Location of construction joints.
- Location of movement joints.
- Location and size of reinforcements.
Non-graphic information include:
- Material types and grades.
- Concrete cover to reinforcement.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
b BRW Breakwater
400 Geometric information include:
- Overall size and geometry of every layer of elements that varies continuously along the 3D alignment.
- Gradient of filled sloping surface and berm.
- Location of construction joints.
- Location of movement joints.
- Location and size of reinforcements.
Non-graphic information include:
- Material types and grades.
- Concrete cover to reinforcement.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
c JTY Pier, Jetty
400 Geometric information include:
- Overall size and geometry of every layer of elements that varies continuously along the 3D alignment.
- Cross-fall and longitudinal fall of the elements components.
- Location of construction joints.
- Location of movement joints.
- Location and size of reinforcements.
Non-graphic information include:
- Material types and grades.
- Concrete cover to reinforcement.
- Unique identifier of construction bay.
500 Refer to Appendix C Part 1 - Introduction.
d WDE Dynamic Envelope in Marine Works Model
400 Refer to Appendix C Part 1 - Introduction.
500 Refer to Appendix C Part 1 - Introduction.
Remarks/ References#
CAT
Code LOD
APPENDIX C2
C2 38/38
Construction BIM Specification
Appendix D
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 1/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Table of Contents
1 INTRODUCTION .................................................................................................................... 3
2 BIM CONTENT ...................................................................................................................... 4
2.1. BIM Software ....................................................................................................................... 4
2.2. Modelling Principles ............................................................................................................ 5
2.3. AAHK-preferred Modelling Methodology ........................................................................... 7
2.4. General Building Plans (GBP) Requirements ..................................................................... 12
2.5. Room Data Sheet (RDS) Requirements .............................................................................. 12
2.6. 2D Information in BIM ....................................................................................................... 12
2.7. 4D Simulation and Construction Method Simulation from BIM ....................................... 16
2.8. Non-graphic Information Requirement ............................................................................. 16
3 BIM TEMPLATE ................................................................................................................... 17
3.1. AAHK BIM Template .......................................................................................................... 17
3.2. Common Settings .............................................................................................................. 17
3.3. AAHK Revit Template ......................................................................................................... 20
3.4. AAHK Civil 3D Template ..................................................................................................... 32
4 MODEL DIVISION ................................................................................................................ 35
4.1. BIM Federation .................................................................................................................. 35
4.2. Model Size ......................................................................................................................... 37
4.3. Colour Scheme .................................................................................................................. 37
4.4. Clash Detection .................................................................................................................. 39
4.5. Errors and Warnings .......................................................................................................... 40
5 NAMING ............................................................................................................................. 41
5.1. Model Naming ................................................................................................................... 41
5.2. Workset Naming ................................................................................................................ 48
5.3. Family Naming ................................................................................................................... 49
5.4. Type Naming ...................................................................................................................... 49
5.5. View Naming ..................................................................................................................... 49
5.6. 2D Drawing System (Sheet) Naming .................................................................................. 50
5.7. Civil 3D Object Naming ...................................................................................................... 50
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 2/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
6 COLLABORATION SITE ......................................................................................................... 52
6.1. Purpose of Collaboration Site and Its Uses ....................................................................... 52
6.2. Collaboration Site Folder Structure Example .................................................................... 52
6.3. User Access ........................................................................................................................ 54
6.4. BIM Library ........................................................................................................................ 54
6.5. Upload Procedures ............................................................................................................ 54
7 AAHK ASSET CODE REGISTER REQUIREMENTS ..................................................................... 56
7.1. AAHK’s Asset Workflow ..................................................................................................... 56
7.2. Input Format and Requirements of AAHK Asset Code Register ........................................ 56
7.3. Schedule Generation ......................................................................................................... 56
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 3/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
1 Introduction
Airport Authority Hong Kong (AAHK) BIM Standard provides a unified foundation
for authoring, storage and sharing BIM content. It contains structured guidelines
for how to create, locate, name, edit, and publish BIM in context of all parties’
collaboration. Specific to AAHK’s requirements to implement Level 2 BIM for AAHK
Projects, this standard document can be adopted towards all future AAHK projects
utilising BIM.
The BIM Standard also serves as a detailed reference for other documents such
as BIM Specification and Appendix F - BIM Checklist.
For AAHK’s 2D drawing requirements, AAHK CADD STANDARD governs 2D
drawing authoring, while 2D drawing naming protocols governs 2D drawing
naming. This BIM Standard references, compliments and shall not deviate from the
latest version of AAHK CADD STANDARD and 2D drawing number protocols.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 4/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
2 BIM Content
2.1. BIM Software
AAHK’s preferred software to author or review BIM models are as followed:
BIM Uses Discipline
(if applicable) Software File Format
Design Authoring
Architecture / Building Services /
Structure / Special Airport
Systems
Autodesk Revit .rvt
Design Authoring Structure Tekla .db1, .db2, .db
Design Authoring Civil / Underground
Utilities AutoCAD Civil 3D .dwg
Visualisation and Simulation
All Autodesk Navisworks
Synchro
.nwc, .nwf and .nwd
.sy6
Clash Detection All Autodesk Navisworks
Synchro
.nwc, .nwf and .nwd
.sy6
2.1.1. Model Authoring and Modelling Software Requirements
All BIM WIP and deliverables including federated model and master model shall
be provided with all native files (e.g. rvt, .dwg). All Navisworks model shall be
provided in .nwc, .nwf, .nwd format. Based on project needs, AAHK may request
specific file formats (e.g. .ifc).
In the event other software is used as approved by AAHK, the alternative software
shall satisfy functional requirements, including:
Displaying and saving 2D views compliant with the latest version of AAHK
CADD STANDARD;
Embedding AAHK’s required attributes in model elements including but not
limited to CAT code, SSI fields, AAHK Asset fields, NQAA code.
Model federation by maintaining relative links between models created with the
same software and correct relative folder structure;
Publishing to AAHK-preferred 2D drawing formats, including but not limited to
.dwg, .dgn and .pdf; and
Exporting to AAHK-preferred data formats, including but not limited to IFC.
In order to keep the latest deliverables at the end of the project that is in the current
approved version at the time of delivery, AAHK will implement BIM software
upgraded throughout the project on a biannual basis. Upgrade implementation will
take major deliverable schedules into consideration. AAHK will give all parties a 3-
month notice prior to the one-month mandatory upgrade timeframe.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 5/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
The use of additional software (“third-party software"), proprietary or freeware, are
to be approved by AAHK prior to use. Any parties under contract with AAHK shall
inform AAHK and AAHK-designated BIM Consultant of any libraries, object
enablers, software plug-ins, 3D viewers, etc. required for AAHK to view their BIM
content. AAHK shall approve or reject with AAHK-designated BIM Consultant’s
advice based on functionalities, interoperability with AAHK-preferred software, cost
(one time and perpetual), and other risks (e.g. software’s future continuity,
liabilities). Upon approval, the required plug-ins shall be posted to collaboration site
for use of entire project team.
Alternate 3D simulation software shall be proposed to increase benefit of using
BIM and presentation. The necessity and project-specific strategy of such alternate
simulation software shall be presented to and approved by AAHK prior to use.
2.1.2. BIM Coordination and Clash Detection Software Requirements
In the event other software is used, the alternative software shall satisfy functional
requirements, including:
Displaying and saving 2D and 3D views compliant with this document;
Displaying and saving dynamic sectioning views;
Model federation by maintaining relative links between models with correct
relative folder structure;
Performing clash detection with AAHK-preferred BIM software file formats, or
file formats that can be exported from AAHK-preferred BIM software;
Generating clash detection results; and
Saving and exporting clash detection result log files.
2.2. Modelling Principles
While the detailed modelling methodologies may vary from project to project, the
following BIM modelling principles are universally applicable regardless of project
type, project scale and LOD.
2.2.1. Parametric-driven
Model elements shall be created dynamically, with their forms and appearances
shall be driven by parameters when possible.
For building models authored using Revit, the use of parameters such as
dimension, materials, shall be optimised. The use of Instance parameters and Type
parameters shall be balanced for model element management while allowing
flexibility to specify individual model elements’ attributes.
Regardless of whether AAHK-preferred software is used, AAHK- or SOS-required
non-graphic information shall be incorporated as parameters. With relevant
parameters in place, the use of schedules and tagging shall be optimised to sort,
audit and control visibility of model elements.
2.2.2. Connectivity
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 6/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Connectivity within systems shall be maintained, including and not limited to load-
bearing structural walls and columns, pipe networks, etc. Quality Control (QA)
procedures shall be conducted regularly to ensure and rectify connectivity.
2.2.3. Eliminating Overlapping Elements or Clashes
Overlapping elements adversely affect clash detection and quantity surveying
results, and shall be detected and eliminated.
Even before the projects reach the stage for clash report submission, routine clash
detection and visual checks shall be conducted as part of Quality Control process.
When resolving model elements overlaps, vertical structural continuity and system
continuity shall be preferred over horizontal or non-structural elements.
Regardless of project SOS, model elements’ hierarchy shall be consistent with
AAHK’s quantity surveying methodology and requirements, which determines the
cutting hierarchy between joining or overlapping elements.
2.2.4. Coherent Model Element Categorisation
Revit categories and Civil 3D object types shall be assigned.
For building models authored using Revit, the use of generic models and in-place
families shall be minimised. See Appendix C Part 1’s “Category” column for details.
Parameters shall be utilised for model management. For example, CAT code shall
be utilised to manage colour setting and search set creation to facilitate clash
detection and resolution.
In order to achieve AAHK-required LOD and standards, discipline models may be
authored using Revit and Civil 3D at the same time. For example:
Corridor models of bridge, tunnel, retaining wall, seawall, breakwater, pier, jetty
and the like shall first be created using Civil 3D, with detailed features further
modelled using Revit.
Marine mud layers, marine deposits, bollard, etc. shall align with Appendix C
Part 1 – BIM Matrix “1. Site Model” or add if needed.
Electrical-related element such as lighting, over-water airport ground lighting,
etc. shall align with Appendix C Part 1 – BIM Matrix “8. Electrical Model” or add
if needed.
2.2.5. Cross-Discipline Model Integration Using of Scripting and Automation
As AAHK projects are oftentimes interdisciplinary across multiple software
platforms, Design Consultants and Contractors are encouraged to use scripting to
automate modelling and interdisciplinary model conversions. To minimise graphic
and non-graphic data loss, Design Consultants and Contractors are encouraged
to explore and test data conversion methods using innovative approaches.
For example, Dynamo Studio may be used to batch convert Revit model elements
into Civil 3D. In the event Design Consultants use software other than Revit to
author Concept and Schematic design models, scripts may be used to convert the
models to Revit and audit the geometries as the result of the conversion.
Design Consultants and Contractors shall include project-specific diagrams in
Project-specific BIM Execution Plans showing interdisciplinary file exchange
strategy and workflow. The figure below shows an example of a BIM project utilising
Revit, Civil 3D, Navisworks, BIM 360 Glue, 2D AutoCAD, Rhinoceros and Tekla:
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 7/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
2.3. AAHK-preferred Modelling Methodology
Design Consultants and Contractors shall further specify project-specific and
discipline-specific modelling methodology for every model element in their Project-
Specific BIM Execution Plan base on SOS and AAHK’s requirements. The creation
method for every element created in the BIM shall be clearly stated and the model
category shall be verified correctly (e.g. Category parameter in Revit), to further
ensure AAHK Asset fields are assigned to correct categories.
The following procedures and methodologies pertain to AAHK-preferred best
practices with minimum requirements. Project-specific and discipline-specific
approaches shall be further refined by Design Consultants or Contractors in
Project-Specific BIM Execution Plan for AAHK approval.
2.3.1. Dynamic Envelope
Dynamic envelope shall be used to:
Represent existing objects that do not require LOD beyond 100, but is necessary for design coordination and clash detection (for instance: zoning envelope, adjacent buildings);
Represent required clearance from design elements (for instance: 3D flight path and no-obstruction zone, headroom for stairs / ramps / access corridors);
Required clearance (e.g. setback or minimum distance) from existing or future structures (e.g. building setback envelopes, BHS system envelopes, APM access route envelopes);
Anticipated future elements that interfaces with the project (e.g. planned future building envelopes, planned trench location, planned sky bridge or tunnel connection location, anticipated reclaimed land surface).
Dynamic envelopes shall be created to show clearance for designed elements, or
creative dynamic envelopes for design reference based on survey data or existing
drawings/models, or link dynamic envelopes created by other interfaces which
have been reviewed by AAHK and distributed via collaboration site.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 8/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Clashes between dynamic envelops and other design elements shall be flagged,
reviewed and resolved.
Working space or maintenance clearance should be specified in clash detection.
The clearance should be added to the model element as non-graphic information
and used for setting clearance when running clash detection.
2.3.2. Architecture and structural elements
In accordance with Section 2.2.3, overlapping of architectural and structural
elements shall be minimised for WIP models and completely eliminated for
deliverables.
In the event structural elements’ surface finishes (e.g. tiles, carpet) are specified
by architectural discipline, non-structural walls containing only the finish layer shall
be modelled, with no overlaps to structural walls. Exception is given to feature /
sculptural structural elements whose surface finishes are specified by architectural
discipline; a geometric duplicate may be hosted in architecture model to apply
finishes. Such architectural copy of structural element shall contain only finish
information with explicit indication in object names (e.g. Revit family name). No
duplicating non-graphic information shall exist between architectural and structural
models.
Typical structural columns shall span between finish floor levels with zero (0) offset
to ensure vertical structural continuity. Vertical structural elements’ continuity shall
be ensured; in the event the hierarchy is reversed, the “Switch Join Order”
command shall be used to rectify. For deliverables, other overlapping elements
shall be resolved via Cut Geometry or manually create openings. The figure below
shows the preferred hierarchy on the left (continuous vertical structural element).
Fall shall be modelled if structural top surfaces is sloped.
Floor and wall openings for Building Services elements shall be modelled in design
stage. For Structure models, rebar shall be modelled at critical connections. Re-
bars and joint details shall be modelled at critical locations to prove constructability
upon AAHK request during design stage.
2.3.3. Building Services
All ducts shall have correct type names specified based on use and corresponding
duct systems. Insulation should be added when applicable.
All pipes shall have correct type names specified based on use and corresponding
pipe systems. Insulation shall be added if applicable. Slope shall be added for
gravity driven pipes. The spacing between ducts, pipes and cable trays shall
consider installation and maintenance.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 9/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
All cable trays shall have correct type name specified corresponding to uses. All
trunkings and busducts shall be modelled using duct and have corresponding
system specified.
All equipment shall modelled using geometries rather than in-place families. Size
of equipment should be specified in its type name and set as a parameter for
controlling size.
All precast conduits shall be modelled regardless of size. Preliminary hangers and
supports for Building Services models shall be modelled for clash detection. In
construction stage, all conduits (including but not limited to cast-in-place conduit,
in-screed conduit, pre-cast conduit, and exposed conduit) and armoured cable for
specific place such as main switch from and transformer room shall be modelled.
All installation and fabrication details (including but not limited to duct segment,
maintenance space, confirmed hanger and support etc.) shall be modelled.
Manholes and terminal manholes connected to and designed as part of building
services systems (though interfacing with underground utilities) shall be modelled
using Revit.
Colour presentation of Building Services shall utilise filter setting in view template
rather than using material.
2.3.4. Baggage Handling System (BHS)
Minimum requirements for BHS include:
Baggage Handling System (BHS) shall be modelled in 3D and provide the clear
area and dimensions of equipment. Model equipment to suitable level of detail
to ensure the required clear space for the baggage envelope, egress and other
rights-of-way are maintained throughout the system.
Equipment shall be modelled to its overall height, width and depth,
including motors.
Model the required clear space for the baggage envelope as dynamic envelope
(Mass) above the bag line surface. Any access zone (work areas for pulling
motors, i.e. clearances in front of motor control centres) requirements shall be
modelled as dynamic envelope (Mass). Clear width and height egress paths
shall be coordinated and modelled as Means of Egress (MOE).
Preliminary support structure for the BHS, including and not limited to floor, wall
or ceiling mounted supports, shall be modelled.
Catwalks necessary for the BHS shall be modelled.
All equipment and fixtures shall be properly circuited and scheduled within the
model itself. All equipment shall utilise dynamic tags (no “dumb” text tags
allowed).
All floor and wall openings, concrete curbs, and security/fire doors required for
the BHS shall be coordinated, with clashes detected and resolved.
“No-fly zones” above control panels shall be modelled as dynamic envelope
(Mass).
2.3.5. Topography
Minimum requirement for topography include:
Shall be created in Civil 3D software;
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 10/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Shall use TIN Surface as the Object type;
Shall have different Surface Styles for existing topography and proposed
topography. In the plan view, only contours shall be displayed and labelled.
Data Shortcuts shall be created for the topography TIN Surface.
Minimum requirements for proposed topography include:
Shall be generated from corridor models and dynamic linked with the corridor
Shall have a clear description of source data includes but not limited source
corridor name, design description and other non-graphic information required
by AAHK.
The procedure for proposed topography modelling shall be as followed:
Create corridor models for ground elements such as roads, slopes, apron,
runway, taxi way taxi lane and etc.;
Create corridor surfaces for each ground elements;
Create a TIN surface model for proposed topography, then combine the
corridor surfaces created from above step by using Paste Surface command.
2.3.6. Runway, taxi lane, and road way
Minimum requirements for runway, taxi lane, road way include:
Shall be created in Civil 3D
Shall use Corridor as the Object Type;
Shall be created by using design alignment, design profile and assemblies;
Shall be well coordinated with the existing topographic;
Can be used for surface generation, drawing generation and material take-off
and other BIM uses required by AAHK;
Shall contain 3D solid model for each layer of the pavement, subgrade, curbs,
sidewalk and other elements contained in the design;
Shall contain surfaces for top surface and subgrade surface;
The procedure for runway, taxi lane, road way modelling shall be as followed:
Create Data Shortcut of existing topography TIN Surface for Target Surface;
Create horizontal alignment and design profile;
Create Assemblies. If user-defined Subassemblies generated by using
Autodesk Subassembly Composer are used, the .pkt files for the user-defined
Subassembly shall also be provided to AAHK;
Create corridor model by selecting horizontal alignment, design profile,
Assembly, and Target surface.
2.3.7. Bridges, tunnels, sea walls and similar structures
Bridge girder, bridge deck, retaining wall, tunnel, seawall, U-channel, surface drain,
box culvert, fence, fence foundation and similar structures shall be controlled by
alignments, design profile, typical cross sections and topography.
Minimum requirements include:
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 11/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Shall be aligned with its horizontal alignment, design profile, assembly and
Target Surface;
Shall be well coordinated with the topographic;
Can be used for drawing generation, material take-off and other BIM uses
required by AAHK;
Shall contain 3D solid model;
Civil structures without Building Services elements and isolate elements, such as
opening, ventilation shaft, crossing beam, and etc., crossing the alignment, shall
follow:
Create alignment, design profile and assembly then create corridor model in
Civil 3D
Generate 3D solid model from corridor
The procedure for civil structures such as bridge, APM tunnel, vehicular tunnel and
etc., which contains Building Services elements and isolate elements shall be as
followed:
Create alignment, design profile and assembly then create corridor model in
Civil 3D. In this step, corridor model shall contains sufficient 3D geometry
information for the structure;
Transfer the corridor 3D geometry information to Revit to create Revit model
for the structure. The Revit model can be used as reference for Building
Services element modelling in Revit
Transfer the Revit structure model back to Civil 3D model in the form of 3D solid
for profile and section drawing generation
2.3.8. Underground Utilities
Minimum requirement for underground utilities include:
Shall be created in Civil 3D;
Object Type for elements shall align with Appendix C Part 1 – BIM Matrix;
Reference Surface and Reference Alignment shall be specified;
Element labels shall be added to display the element properties such as type,
size, coordinates, material and etc. Elements display style such as line type,
line weight and etc. in the plan view shall align with the latest AAHK CADD
STANDARD;
Profile views, section views shall be required for design review and drawing
production;
Can be used for surface generation, drawing generation and material take-off
and other BIM uses required by AAHK;
Manholes and terminal manholes with no connection to Building Services shall be
modelled using Civil 3D.
2.3.9. Existing Elements
Minimum requirement for existing elements include:
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 12/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Clear description of the source data includes but not limited to source data file
name, type, surveyor name, date of survey and other non-graphic information
required by AAHK.
Topographic surfaces shall use external point files rather than point objects in
the drawings.
2.4. General Building Plans (GBP) Requirements
General Building Plans (GBP) refers to overall reference plan of the building, or
overall project area reference plan in the case of civil projects.
GBP shall be overlaid into each model as links, in order for cross-referencing the
location against the entire building. Linking allows GBP to be switched on and off.
2.5. Room Data Sheet (RDS) Requirements
Room Data Sheets (RDS) are provided by AAHK. By-room spreadsheets with
elements and requirements matching to AAHK-provided RDS shall be created.
Overall schedules in Revit shall be set up to ensure that all countable RDS
elements' location, type, count, and description are captured. Further filters in Revit
shall be then set up to filter and display RDS information by room. General room
descriptions and descriptions by element types shall be authored in Excel and
synchronised with BIM models.
Shared parameters in AAHK BIM Template shall be used to maintain the RDS
data. Performance information, analysis data, calculated data shall be
synchronised with BIM models to corresponding fields at key milestones and for
the final deliverable. The consolidated spreadsheets and individual data sheets by
room shall be continually maintained, and the final spreadsheets by room
demonstrating conformance to AAHK-provided RDS shall be produced.
2.6. 2D Information in BIM
All 2D drawings generated from BIM shall follow the latest version of AAHK CADD
STANDARD. 2D representation includes the line style, colour, fill pattern, symbol
and text annotations. AAHK CADD STANDARD is to serve as a guideline
specification and drawing standard for production of drawings in AutoCAD format
for projects adopting BIM processes or other design or work contract as specified
by the AAHK.
The families relevant to drawing production shall be created, or settings for drawing
production shall be applied to align with the latest version of AAHK CADD
STANDARD.
Please always use AAHK’s BIM template (mentioned in Chapter 3) to setup
drawings set.
2.6.1. 2D Drawing Generation from Revit File
Please refer to the below steps for AAHK-preferred drawing generation process:
Prepare a drawing list that will be generated from Revit. An Excel format for the
drawing list is preferred.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 13/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Create sheets via either of the two options:
- Option 1: create sheets in Revit native model; or
- Option 2: create sheets in a master model which links all necessary Revit
models.
Set up the views for sheets. The naming of the views is preferred to be the
same as the drawing name.
Set view visibility in “Visibility/Graphic Dialog” of these views to fit the
requirements of the drawings. For example, for structure layout, the linked
architecture model only shows the stair. For Building Services models, the
linked architecture model should be half tone.
Save the “view template” for views such as layout plans, sections, and key
plans. Apply these view template to relevant views.
Add annotations to model elements.
Create “scope box” for different cut sheets.
Create “dependent views” from layout plan for all cut sheets and name these
views with drawing name from drawing list.
Apply “scope box” for each zone on these views.
Create all sheets based on drawing list and place relevant views into sheets.
Suggest to use plugin or programming method to do the repeat works.
Prepare export setting in “custom setting window” for DWG (e.g. layer mapping,
colour, line weight, line style).
2.6.2. 2D Drawing Generation from Civil 3D File
It is recommended to use the following three-level structure with “Data Shortcut” to
generate 2D drawings from Civil 3D files.
Level 1: Individual Civil 3D Objects
Setup the source drawings that contain basic Civil 3D objects, such as existing
ground surfaces, alignments, parcel, pipe networks, etc. Either storing each object
in a separate drawing or include several related objects in a single drawing are
acceptable.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 14/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Level 2: Base Map, Linework, and Engineering Drawings
After the Civil 3D objects are setup in Level 1, base maps, linework and engineering
drawings can be developed in Level 2.
If the production of 2D drawings and Civil 3D modelling is developed under multi-
user environment, working parties shall refer to core project objects into composite
drawings. Furthermore, working parties shall keep the size of the drawing in
minimal size and ensure the core objects are not unintentionally modified. At the
same time, plan sets and production drawings can be prepared as required.
Level 3: 2D Drawing Sheets
After the relevant base map, linework and engineering drawings are developed,
2D drawing sheets can be ready to generate, e.g. tunnel layout plans, road profiles,
utility sheets and landscaping sheet.
To generate 2D drawing sheets, base drawing and other drawings shall be referred
using x-ref (AutoCAD external references).
Below diagram explained the relationship of three-level structure approach for Civil
3D.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 15/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
2.6.3. 2D Drawing and 3D Consistency
The 2D drawings shall be generated from BIM models, and 2D drawings and BIM
models are consistent in terms of geometric alignment and non-graphic
information. Graphic touchups are allowed but shall not alter the geometric
alignment. A list of 2D drawings which are generated from BIM models shall be
prepared and submitted for AAHK and AAHK-designated BIM Consultant to check
with the consistency. Sample of the list shall similar as below but not limited to the
items which are requested by AAHK and AAHK-designated BIM Consultant.
Drawing No. Relevant model / view/ sheet name
For those 2D drawings not directly generated from BIM models, the reason shall
be specified in the Notes section below the drawing list for AAHK’s review and
approval.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 16/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
2.7. 4D Simulation and Construction Method Simulation from BIM
If project scope contains 4D simulation or construction sequence simulation,
Simulations shall be produced with AAHK-preferred or approved software (e.g.
Navisworks Manage).
Project-specific time intervals shall be proposed for AAHK’s approval. The time
intervals shall be refined to weekly to show construction progress within each
phase. Date and time stamp shall be displayed in optimal legible size in the video
frame.
Simulations shall view model elements in 3D (instead of only 2D plan or elevation
views), and use AAHK-approved model element colour codes and transparency
settings. See Section 4.3 for details.
For construction method simulation, demolition and temporary works shall be
modelled and shown. Phasing boundaries, if applicable, shall be modelled and
displayed.
Accompanying the simulation animations, native files from which the videos are
generated shall be provided to AAHK. Native files shall contain timeline, progress
bar, with the correct time assigned to relevant activities.
2.8. Non-graphic Information Requirement
Non-graphic information shall be contained in BIM models accompanied with
geometry objects to facilitate drawing outputs and scheduling. Project-specific non-
graphic information shall be specified and incorporated in the Project Execution
Plan for AAHK approval, including but not limit to the methodologies and settings
for parameters set up.
In the event additional non-graphic fields need to be added to Revit models,
additional Shared Parameters shall be created and associated with relevant Revit
Categories.
In the event additional non-graphic fields need to be added to Civil 3D models,
additional Property Sets shall be created and associate with relevant Objects,
Styles and Definitions.
Project-specific BIM Execution Plan shall document these Shared Parameters and
Property Sets, and ensure they are consistent within the contract.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 17/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
3 BIM Template
3.1. AAHK BIM Template
AAHK BIM Template is provided by AAHK via following approaches, which
includes templates for Revit and Civil 3D.
Tender documents package Collaboration Site
3.2. Common Settings
3.2.1. Coordinate System
All BIM shall be built and annotated directly with reference to the Hong Kong 1980
Grid (HK 1980 Grid) and Hong Kong Principal Datum (HKPD).
3.2.2. Line Type and Line Style
Refer to the latest version of AAHK CADD STANDARD for line styles, basic line
style is created in BIM template.
3.2.3. Title Blocks
The latest version of AAHK CADD STANDARD shall be followed to create and
customise their owned title blocks in BIM models.
3.2.4. Following fields or attributes are embedded in BIM template:
Category Code (CAT)
A unique code for each type of model element and shall be referred to Appendix C
Part 1 – BIM Matrix.
SSI field
SSI field stands for Security Sensitive Information which is for AAHK’s internal use.
AAHK Asset fields
In order to build up airport assets information in BIM models, AAHK Asset fields
have been included in AAHK BIM Template. AAHK Asset fields shall store airport
assets information for providing information for Airport Asset Management System
(the “AAMS”) which is managed by AAHK. Refer to Chapter 7 for descriptions of
AAHK Asset fields, input format in BIM model and required workflow.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 18/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Screenshots of AAHK Asset fields in Revit BIM Template:
Screenshots of AAHK Asset fields in Civil BIM Template:
NQAA field
NQAA stands for Notification of Quality Assurance Activity. The relevant NQAA
code shall be inputted into the particular object(s) inside the BIM models.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 19/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
THIS PAGE NOT USED
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 20/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
3.3. AAHK Revit Template
AAHK Revit template provides a starting environment and BIM Standard for
AAHK’s projects. The template is created in Revit format (.rte). The template
includes important aspects that shall be addressed prior to starting their projects.
For each projects, the template shall be the basis to create Revit model. This
template contains families such as share parameters, annotation and symbols
elements (including element tags and view references). Further details of how to
use the template, please refer to following guidelines.
3.3.1. Browser Organisation
Pro
ject
Bro
wse
r
Architecture
Coordination
General
Presentation
Sheets
Working In Progress
Floor Plans
Ceiling Plans
3D Views
Elevation
Sections
......
User defined
Coordination
Electrical
Mechanical
Plumbing
Structural
Group by View Family
Group by Discipline
Group by Type
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 21/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
It is recommended to set following types of Browser Organisations:
Project Browser Organisation – Discipline
Project Browser Organisation - Architectural
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 22/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Project Browser Organisation - Electrical
Project Browser Organisation - Mechanical
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 23/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Project Browser Organisation - Plumbing
Project Browser Organisation – Structural
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 24/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
3.3.2. Grid
Grid information shall refer to latest project grid layout provided by AAHK,
consistent with BIM template.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 25/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 26/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
In addition, following 2 images are the building grid provided by AAHK that can be
found in AAHK CADD STANDARD. Please make reference to the latest version of
AAHK CADD STANDARD as the latest copy. Upon project commencement, please
obtain the latest grid information from AAHK.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 27/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
3.3.3. Survey Point and Project Base Point
All 3RS projects shall use the same Survey Point and Project Base Point to ensure
alignments when collaborating with other projects, as designated below and
consistent with the BIM template.
AAHK BIM Template shall be used to create models, without moving or redefining
Survey Point or Project Base Point. Retroactive moving of Project Base Point away
from startup point shall only be done for legacy projects or reference models
outside of AAHK for the purpose of linking and aligning projects using Project Base
Point.
Survey point coordinate:
Northing: 819300000.0mm
Easting: 809800000.0mm
Elevation: 0.0mm
Project base point coordinate:
Northing: 819300000.0mm
Easting: 809800000.0mm
Elevation: 0.0mm
Angle to True North: 341.000 degree
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 28/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
3.3.4. Unit
Metric units shall be used.
The commonly recognised unit for building projects is millimeter (mm). Meter (m)
shall be used for projects with larger footprint or span.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 29/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
3.3.5. Shared Parameters
Shared Parameters for title blocks
To facilitate 2D outputs from BIM models, project-specific shared parameters could
be created on title blocks. For example,
Shared Parameter Data Type
Authorised Representative Text
Authorised Representative approval date Text
Checking date Text
Design date Text
Design Ref. Text
Design Supervisor Text
Design Supervisor approval date Text
Discipline Text
Drawing Number Text
Drawing Sequence Number Number
Drawing Type Text
Drawn date Text
Location Text
Originator Text
Sheet name line 1 Text
Sheet name line 2 Text
Sheet name line 3 Text
Sheet Parameters
Sheets should have their own parameters which are used for sorting and
organising the sheets in the project browser. The parameters are used to organise
the sheets in the Drawing Index schedules.
AAHK projects use the sheet parameters described in this Chapter to organise the
project browser and the drawing lists used in the printed sheets.
Sheet Type: Used for browser organisation 01 Architectural Set, similar to view
organisation described in this document.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 30/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Sheet Discipline: Used in Browser Organisation
Volume Number (Optional): Used for Drawing Index schedule to sort sheets by
volume if needed.
Volume is also used in the Browser Organisation
3.3.6. Start a New Project in Revit Template
Start a new project in Revit
1
2 3
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 31/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Browse AAHK Revit Template
Select AA Revit template from the destination folder which you have stored files from above Chapter.
Click to open AA Revit Template
Click to browse
Click to select the template
Click to open the template
Click to open the template
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 32/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Revit file with AA Revit Template is created and displayed as following
3.4. AAHK Civil 3D Template
AAHK Civil 3D template provides a starting environment and BIM Standard for
AAHK’s projects. The template is created in Civil 3D format (.dwt). The template
includes important aspects that shall be addressed prior to starting their projects.
For each projects, the template shall be the basis to customise on top their specific
projects for civil related works. This template contains basic information such as
Layer Settings and Object Layers in compliance to the latest version of AAHK
CADD STANDARD. Drawing Units are in metric. Drawings Settings abbreviations,
Object styles and Label styles are also in compliance to the latest version of AAHK
CADD STANDARD. User defined items are not included. It is recommended to
maintain good practices, such as the consistency throughout the projects and
effective management of the user defined items. A user-defined item list can be
provided when requested by AAHK for references only.
Further details below, are step to step explanations on where to locate the template
file and how to start a new civil BIM model (.dwg) with the template file. Please
refer to the following guidelines.
3.4.1. Coordinate
Civil 3D files shall be created using true coordinates.
3.4.2. Settings in the template
Layer Settings
Layer 1 to 63 have been removed. Layer 0 is set as default layer and shall not be
used for all AAHK projects. You shall create project specific layer according to the
latest version of AAHK CADD STANDARD.
Object Layer settings
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 33/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Layer 0 is set for all objects temporarily. You shall set project specific object layer
according to the latest version of AAHK CADD STANDARD.
Object style and label style settings
The default object style and label style in Civil 3D cannot be used directly. You
shall create project specific styles according to the latest version of AAHK CADD
STANDARD.
AECPSDAUTOATTACH
AECPSDAUTOATTACH variable is set to OFF. If you want to automatically assign
property sets to objects, please set this variable to ON.
3.4.3. Start a New Project in Civil 3D Template
Start-up Civil 3D program
Select “AA-Civil 3D template.dwt” from the destination folder which you have stored files from above Chapter.
1
2
1. Click to select the template
2. Click to open the template
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 34/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Civil 3D file with AAHK Civil 3D Template is created and displayed as followed:
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 35/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
4 Model Division
4.1. BIM Federation
4.1.1. Model Types and Formats
Different types of models’ descriptions and formats are as followed:
Model Description Remarks File Format
Federated Model
Multi-disciplinary, linked model file
Federated models are distinct component models “linked” together in such a manner that the linked data sources do not lose their identity or integrity by being so linked (Navisworks model).
.nwf, .nwd
Master Model
Single-project, single-software, linked model file
Project-specific master model shall be created. All models authored with AAHK-preferred BIM software shall be created using AAHK BIM Template.
Generating 2D drawings or related documents from coordination models is preferred as they can show auxiliary disciplines, context or interfacing projects.
Design authoring formats
Coordination Model
Multi-disciplinary, interfacing, linked model file
Coordination models shall be interdisciplinary within one project or between projects for the purpose of coordination and clash detection of various trades.
Design Consultants and Contractors shall always use the latest models to link for coordination.
Design authoring formats or
.nwf, .nwc and
.nwd
Design Model
Single-discipline, individual model file
Models authored in design stage.
Design authoring formats, .nwc
Construction Model
Single-discipline,
Models authored in construction stage.
Design authoring formats, .nwc
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 36/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Model Description Remarks File Format
individual model file
As-Built Model
Single-discipline, individual model file
Models reflecting as-built condition.
Design authoring formats, .nwc
4.1.2. Disciplines and Sub-Discipline Management
BIM files shall be divided by discipline and contain data from one discipline only.
Project-specific model division strategies shall be proposed in project-specific BIM
Execution Plan, subject to AAHK’s approval.
4.1.3. Overall Model Division Recommendation
Models shall be divided by location, and then by discipline.
4.1.4. Federation Map
In addition to the submission file list, a Federation Map shall be submitted which
demonstrates all the relationship and numbers of BIM files.
An example of federation is as followed:
Level 5
Level / Zone
Level 4
Type
Level 3
Discipline / Sub-discipline
Level 2
Location
Level 1
Federation
Federated Model
Location
ARAP
Location
PCT2
Underground
Utilities
Architecture
Structure
Building Services
Coordination
Model
New
Work
Model 1
(In Zone / Level)
Model 2
(In Zone / Level)
Model 3
(In Zone / Level)
Existing
ModelCivil
Other
Disciplines
Location
AWWW
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 37/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
4.1.5. External References and Linked Files
External references may include .dwg, .dgn, .rvt, .ifc, .dxf or other compatible
2D/3D file types operable by AAHK-preferred software. These links shall be
preserved in the process of file sharing and collaboration.
For Master Models, Reference Type shall be “Attachment” and Path Type shall be
“Relative.”
For Civil 3D master models or coordination models, data shortcut references shall
be maintained for alignments, pipe networks, pressure pipe networks, TIN
surfaces, and corridors.
4.1.6. Storing Viewpoints in BIM Files
The design, coordination and construction issues shall be flagged within
coordination models via saved views, and use the views for progress and
coordination meetings.
Saved views shall be grouped by dates and interfacing events/parties. In Autodesk
Navisworks, the groups shall be established by creating folders named
YYYYMMDD-[Name of Interfacing Event/Parties].
4.2. Model Size
4.2.1. Maximum Model Size
All models (except federated .nwd models) shall not exceed 150MB each.
Maximum size of federated .nwd models shall be project-specific as approved by
AAHK.
BIM files shall be kept at their minimum size. Items not appropriate for use or
irrelevant should be purged or detached periodically and prior to submission.
The models shall be divided by location, zones and/or disciplines, sub-disciplines,
according to strategies proposed in project-specific BIM Execution Plan, once
model sizes exceeds AAHK-mandated maximum.
4.2.2. Purging
BIM shall be purged of all unused views, families and other settings upon
submission.
4.3. Colour Scheme
For easy review and better collaboration in federated models, the colour specified
in Appendix C Part 1 - BIM Matrix shall be followed to assign colour for their models’
views.
The AAHK-specified colour shall be followed in different stages including but not
limited to work in progress (WIP), statutory submission, submission for AAHK’s
approval and final submission to AAHK’s assets and facility management teams
(including but not limited to TSD).
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 38/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
AAHK-specified colour may be by model element or by system. By-system colour
requirements are typically applicable to underground utilities, plumbing or systems
that have both long-spanning conduits/pipes/wires and individual connection
model elements. See Appendix C Part 1 – BIM Matrix for details.
If key project-specific model elements or systems do not have AAHK-specified
colour in BIM Matrix, the colour scheme for these systems shall be assigned and
submitted for AAHK’s approval.
4.3.1. Colour Display Methodology
Colour shall be displayed via filter (Revit), appearance profiler (Navisworks) or
other parametric method to achieve appearance based on the CAT Code
parameter, rather than altering the materiality of model elements or systems.
In Revit, for instance, the model elements’ material colour shall not be manually
overridden in the “Appearance” tab. The colour shall remain the actual material
RGB (unless the element or system happens to be the same colour as CAT Code
colour in real life). Other properties such as thermal and physical attributes shall
also be correctly assigned to each material.
4.3.2. Mandatory Views to Apply Colour
Aside from federated models in coordination and interfacing software (e.g.
Navisworks), AAHK-specified colour shall be applied to:
Non-drafting interdisciplinary coordination views or layouts
Non-drafting inter-project coordination views or layouts
Non-drafting views or layouts showing more than one system (e.g. a
view/layout showing both fresh water and flush water pipe systems)
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 39/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
The filtered and non-filtered views shall be listed out and described in their project-
specific BIM Execution Plan.
4.3.3. New Elements
Regardless of software used, new elements in individual native models and
federated models shall reflect the AAHK-required colour or that outlined in BIM
Matrix.
4.3.4. Existing / Context
Data source for the existing model shall be stated by:
a) Correct model file naming for individual existing model as stated in Section
5.1; and
b) Applying different % transparency if needed. For example,
- Data source from site survey: 30% transparency; and
- Data source from as-built record: 70% transparency.
4.3.5. 4D Simulation
Colour and transparency settings for 4D simulations and construction method
simulations shall be as followed:
Type 4D Simulation
Start Appearance
4D Simulation
End Appearance
Construction Method
Simulation
Start Appearance
Construction Green
(20% transparent)
Model Appearance None
Demolition Red
(90% transparent)
Hide (Invisible) Model Appearance
Modification Red
(50% transparent)
Model Appearance Model Appearance
Temporary Yellow
(80% transparent)
Hide (Invisible) None
4.4. Clash Detection
4.4.1. Clash Detection Process
Clash detection shall be conducted inter-project with all interfacing projects, as well
as inter-discipline for all interfacing disciplines within the project.
4.4.2. Clash Matrix
The clash matrix shall be further refined based on Appendix L – Clash Matrix,
incorporating additional project-specific disciplines and sub-disciplines (if any).
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 40/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
CAT code shall be used to create “Selection sets” match disciplines and sub-
discipline groupings to facilitate clash detection.
4.4.3. Clash Report Content
Suggested contents for clash reports shall include the following at the minimum.
Based on project needs, AAHK may request specific contents to be included.
BIM Model Composition
Federation map, overview of combined model, and overall view of each discipline
model.
Clash Detection Process
Clash detection methodology, number of total clashes, clash types, and list of real
clashes.
Itemised Clashes Log
Including reference ID, location, discipline, status (new or outstanding), screen
capture, and description.
4.5. Errors and Warnings
Upon WIP upload or official submissions, the errors and warnings shall be
eliminated and minimised, which may include but not limited to missing
connections, invalid constraints, unclosed boundaries, unplaced elements, and
missing references.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 41/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
5 Naming
This Chapter provides naming standard for any BIM project at AAHK.
5.1. Model Naming
Only letters A-Z, hyphen, underscore and numbers 0-9 for all fields;
Do not use spaces; all fields shall be separated (if necessary) by a hyphen
character “-”;
A single period character "." shall be used to separate the file name from the
extension, and should not be used anywhere else in the file name; and
The file extension shall not be amended or deleted.
Abbreviations or codes not yet specified in this document shall be proposed
for AAHK’s approval. AAHK and AAHK-designated BIM Consultant will keep
a master list for cross-check with newly proposed project-specific for all
related codes, disciplines and sub-discipline. To ensure consistency
throughout, it is advised to utilise the codes listed in BIM Standard and master
list whenever if possible.
File naming shall follow the format shown in the diagram below:
5.1.1. Field 1: Project
An abbreviated code or number identifying the project. This is the same as AAHK
CADD STANDARD; the only difference is the order is reversed with Author.
(Maximum 4 characters, subject to length of project number specified by AAHK)
Underscore coding “_” may be used if the model does not relate to a specific
project, subject to AAHK’s approval (e.g. AAHK’s internal studies).
5.1.2. Field 2: Author
An abbreviated code identifying the originating stakeholder. This is same as AAHK
CADD STANDARD; the only difference is the order is reversed with Project.
(Maximum 3 characters)
Three letter abbreviation of the Author’s name, for example:
ACM (AECOM)
MMH (Mott MacDonald)
AED (Aedas HK)
1
Project
2
Author
3
Location
4
Main Discipline
5
Type
6
User Defined
Field
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 42/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
5.1.3. Field 3: Location
An abbreviated code to identify the location of the project. (Refer Location Code
Schedule) (Maximum 7 characters)
Any query or request for additional location code, please submit to AAHK
for approval.
(*) denotes proposed additional codes which is extended from WBS-L1 and
WBS-L2 to cover some of the new facilities.
Location Code Schedule
WBS-L1 Code Description
AA All area on Airport Island (incl. 3RS reclamation footprint area, HZMB and BCF )
AI Airfield (specified to 3RS reclamation footprint area)
AT Automated People Mover (APM)
AR Airside Road, Tunnels, Infrastructure & Systems
AW Airport Wide Services (AWS)
BH Baggage Handling System (BHS)
BT Baggage Tunnels
CS Central Ancillary Support Area (CSA)
ES Eastern Ancillary Support Area (ESA)
FA* Aviation Fuel Tank Farm Area
PC Passenger Terminal/Concourse
TU* Tunnel (e.g. BHS and APM Tunnels)*
WS Western Ancillary Support Area (WSA)
TA* TRC*
X* Federated Model
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
AA AWTC Asia World Trade Centre (3RS Headquarters)
FA Aviation Fuel Tank Farm Area
HKIA HKIA Tower (Airport Authority Headquarters)
MA Area excl. Airport Island (e.g. Marine Park, Sha Chau, Tung Chung)
NCD North Commercial District Areas
PFA Airside Petrol Filling Station
PFL Landside Petrol Filling Station
PSO Project Site Offices
XX Location/Area/Building not assigned/mentioned on above
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 43/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
AI AG Airfield - AGL System
AK Airfield - AAHK Buildings
CT Airfield - Crossfield Taxiway
CR Airfield - Centre Runway (Southern runway)
GO Airfield - Geotechnical
NR Airfield - Northern Runway
MA Airfield - Midfield Area Stands
MP Airfield - Master Plan
TA Airfield - TRC Apron Taxi lanes, Road & GSE Areas
TF Airfield - Tenant/Government Serviced Site Facilities/Franchise/Airline
TR* Airfield - Third Runway
TS Airfield - TRC Apron Stands
ZZ Airfield - Support Area/Ancillary Buildings
XX Location/Area/Building not assigned/mentioned on above
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
AT FF APM - Fixed Facilities
GO APM - Geotechnical
MM APM - System
T1 APM - Terminal 1 Modification
T2 APM - Terminal 2 Expansion
TR APM - Third Runway Concourse
T2TR APM - Terminal 2 to TRC Sections
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
AR AP AR - Airside Perimeter Road
AR AR - Airside Road
ET AR - Eastern Vehicular Tunnels
LS AR - Road/Tunnel/Infrastructure located on Landside Area
WR AR - Western Vehicular Tunnels
XX Location/Area/Building not assigned/mentioned on above
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 44/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
AW AF* AWS - Aviation Fuel Network*
AU AWS - Utilities at TRC (Trench Reinforced Concrete)
CU AWS - Combined Service Utilities/Underground Utilities
GS AWS - Gas
FW AWS - Foul Water
PD AWS - Ducting & Sleeving
PW-FH AWS - Potable Water & Fire Hydrant
SW AWS - Cooling Water incl. Grey & Sea Water
WW AWS - Waste Water
DR AWS - Storm Drains
IR AWS - Irrigation
CLP AWS - CLP Ducting and Draw Pits
TP AWS - Telecommunication Ducting
AA AWS - AA Power Ducting
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
BH AR BHS - Main Tunnel Routing
CC BHS - Central Concourse
EC BHS - Eastern Concourse
ES BHS - Eastern Ancillary Support Area
T1 BHS - Terminal 1 Modification
T2 BHS - Terminal 2 Expansion
WC BHS - Western Concourse
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
BT TY Baggage Tunnels
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
CS AK CSA - AAHK Buildings
GO CSA - Geotechnical
TF CSA - Tenant/Government Serviced Site Facilities/Airline Facilities
ZZ CSA - Central Support Area (Ancillary Buildings)
XX Location/Area/Building not assigned/mentioned on above
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
ES AK ESA - AAHK Buildings
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 45/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
GO ESA - Geotechnical
TF ESA - Tenant/Government Serviced Site Facilities/Airline Facilities
ZZ ESA - East Support Area (Ancillary Buildings)
XX Location/Area/Building not assigned/mentioned on above
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
FA* Exact location to be confirmed by AAHK
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
PC AK Passenger Terminal/Concourse - AAHK Buildings
GO Passenger Terminal/Concourse - Geotechnical
GTC Ground Transportation Centre (area not covered by T2)
GTCWB Ground Transportation Waiting Building (Car Park 1 Enhancement Works)
ITT Intermodal Transfer Terminal Building
MF* Passenger Terminal/Concourse - Midfield Concourse
NS Passenger Terminal/Concourse - North Satellite Concourse
SP Passenger Terminal/Concourse - SkyPier
SB Sky bridge (Bridge linking Terminal 1 and NSC)
T1 Passenger Terminal/Concourse - Terminal 1*
T1A T1 Annex Building
T1ALB Link Bridge between Terminal 1 and Annex building
T2 Passenger Terminal/Concourse - Terminal 2*
T2E Passenger Terminal/Concourse - Terminal 2 Expansion
TR* Passenger Terminal/Concourse - Third Runway Concourse*
TRE Passenger Terminal/Concourse - Third Runway Concourse (Expansion)
XX Location/Area/Building not assigned/mentioned on above
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
TU* T1SK* Tunnel - Terminal 1 to SkyPier Sections*
T1T2* Tunnel - Terminal 1 to Terminal 2 Sections*
T2TR* Tunnel - Terminal 2 to TRC Sections*
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
WS AK WSA - AAHK Buildings
GO WSA - Geotechnical
TF WSA - Tenant/Government Serviced Site Facilities/Airline Facilities
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 46/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
WBS-L1 WBS-L2 Description (WBS-L1 & WBS-L2)
ZZ WSA - West Support Area (Ancillary Buildings)
XX Location/Area/Building not assigned/mentioned on above
5.1.4. Field 4: Main Discipline
A code for identify main discipline for the model. (Maximum 3 characters)
Discipline Description
AR Architecture
BS Building Services
CV Civil
GE Geotechnical
LS Landscaping
ST Structural
UU Underground Utilities
BHS Baggage Handling System
X* Federated Model
5.1.5. Field 5: Type/Status
2 character identifier code for describing the use of the BIM.
(Maximum 2 characters)
Type/Status Description
NE New Work
EX Existing Models
TP Temporary Work
AS As Built
M2 2D File
DR Drawing Sheet
CO Model for Coordination
SC Schedule
BQ Bill of Quantities
SP Specifications
MA Model for Analysis
X* Federated Model
5.1.6. Field 6: User Defined
Project defined specific. This field shall be used for defining level, zone, sub-
disciplines, data source for the existing model, or CAT Code proposed for AAHK’s
approval (Maximum 7 characters). The model list shall be prepared in advance for
AAHK’s approval, including the sequences for code configurations between levels,
zones, sub-disciplines, data source for the existing model, or CAT Code, according
to Appendix C Part 1 – BIM Matrix.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 47/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Sub-disciplines code shall be proposed and included in project-specific BIM
Execution Plan. The suggested sub-discipline codes are summarised as below:
Discipline Sub-
discipline Code
Sub-discipline
Building Services EL Electrical System/ Lighting System/Power Distribution
HVAC Heating Ventilating and Air-Conditioning
ELV Extra-low voltage
TG Town Gas
FS Fire Services System
PL Plumbing Installation
DR Drainage Installation
ES Lift and Escalator
Civil RG Road
BD Bridge
BDDR Bridge Drainage
TP Topographic Surface
TXW Runways, Taxiways, Taxilanes
Geotechnical RH Rock Head Model
ELS Excavation Lateral Support
Underground Utilities
DR Storm Drains
SE Sewerage
PM Potable Water Main & Fire Hydrant
WW Waste Water
FW Foul Water
SW Cooling Water incl. Grey & Sea Water
IR Irrigation Pipe Networks
TG Town Gas
AFL Aviation Fuel Network
CLP CLP Ducting and Draw Pits
TP Telecommunication Ducting
AA AA Power Ducting
If Field 5 is “EX – Existing Models”, the data source for the existing models shall
be specified in Field 6. The data source codes shall be proposed and included in
project-specific BIM Execution Plan. The suggested data source codes are
summarised as below:
Type Data
Source Code
Data Source for the Existing Models
EX LS Laser Scanning
AB As-built Record
DS Digital Survey
TS Topographic Survey
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 48/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
5.1.7. Model Naming Examples:
For project 9999 (a passenger concourse T2 building project) done by the Author
MNO, the BIM models are divided by levels (L3/L5/L6):
5.2. Workset Naming
Workset is Revit's way of allowing multiple team members to work on the same
project. The Worksets of the projects shall be created and maintained.
Do not unload a linked Revit file and not synchronise with Central (use
Visibility/Graphics or opened=No).
Do not use Worksets such as layers. Small projects can be accomplished with
the two default Worksets.
The two factors determining the number of Worksets are scale of the project
and the number of people working on the project.
Do not create Worksets for annotation or notes.
For new content created within an existing AAHK base model, separate
Worksets shall be created to allow for definition and separation of new content
from existing.
Sub-disciplines, such as interior furniture, light fixtures, landscape and
signage are to have individual files instead of Worksets within architecture
BIM.
Project 9999
Federated Model
Location ARAP model
Location PCT2
model
Underground Utilities
model
Architecture
model
Civil model
model
Other disciplines
model
Building
Services
model
Temporary Work
Model 1
divided by
zone/level
Model ……
divided by
zone/level
Model N
divided by
zone/level
New Work
Model 1
divided by
zone/level
Model ……
divided by
zone/level
Model N
divided by
zone/level
Existing Model
Model 1
divided by
zone/level
Model ……
divided by
zone/level
Model N
divided by
zone/level
Structure
model
Location AWWW model
9999-MNO-X.rvt
9999-MNO-PCT2-X.rvt
9999-MNO-PCT2-BS-X.rvt
9999-MNO-PCT2-BS-NE-X.rvt
9999-MNO-PCT2-BS-NE-L3.rvt
9999-MNO-PCT2-BS-NE-L5.rvt
9999-MNO-PCT2-BS-NE-L6.rvt
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 49/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
In the building model, if the model are “Horizontal cut” by zones, “Level”
Worksets shall be created and named as <Level>-<Description (Optional)>.
For example: B01-SG, B02-FA, M02-FI
For “Vertical cut” model, “Zone” Worksets shall be created and named as
<Zone>-<Description (Optional)>. For example: R1A1-SG, R2A2-FA, R3A3-
FI
The diagram below illustrates Plan and Grid System:
For acronyms & abbreviations, Worksets for architectural model for collaboration
include:
SG = Structural and Grid
FI = Finishes, Door
FA =Façade
RF= References items such as massing, reference lines
5.3. Family Naming
In the event Autodesk Revit is used, family naming shall comply with the following
format:
<AA>-<Family Name>_<Description1 (optional)>_<Description2 (optional)>
For example:
AA-Structure Column_Round.rfa, AA-Air Conditioner_Wall Mounted_Type 1.rfa
5.4. Type Naming
Type naming shall be based on the component’s dimension.
For doors and windows: <Width>x<Height>
For Caseworks and furniture: <Width>x<Depth>x<Height>
5.5. View Naming
The name of the view should follow the following standard:
<Discipline> - <View Purpose> - <View Description>
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 50/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
For example: AR-W-L01
The discipline code and view purpose code should choose from the form:
Disciplines Codes View Purpose Code
Architectural AR General G
Structural ST Presentation P
Electrical EL Work In Progress W
Mechanical ML Coordination C
Plumbing PL Sheets S
View Description should be clear and concise.
For example:
5.6. 2D Drawing System (Sheet) Naming
Naming of 2D drawings generated from BIM files shall follow the latest version of
AAHK CADD STANDARD.
5.7. Civil 3D Object Naming
Naming for Civil 3D Object shall be similar as model naming.
Only letters A-Z, hyphen, underscore and numbers 0-9 for all fields;
Do not use spaces; all fields shall be separated (if necessary) by a hyphen
character “-”;
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 51/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Abbreviation or Code not yet specified in this document should be proposed
for AAHK’s approval.
Naming shall follow the format shown in the diagram below:
Field No Field Name Reference
1 Project Please refer to item 5.1.1
2 Author Please refer to item 5.1.2
3 Location Please refer to item 5.1.3
4 Main Discipline Please refer to 5.1.4
5 Type/Status Please refer to 5.1.5
6 User Defined Please refer to 5.1.6
Examples:
Point Group naming example: 3133-ACM-PCTR-GE-EX-BOREH (3133-AECOM-Third Runway Concourse-Geotechnical-Existing models-Borehole)
Point Clouds naming example: 3131-ACL-AIXX-CV-EX-EG (3131-Atkins China Ltd-Civil discipline-Existing models-Existing Ground)
Surface naming example: P282-ACM-AIXX-CV-NE-LSAFG (P282-AECOM-Airfield default-Civil discipline-New Work-Limousine Staging Area finished ground surface )
Alignment naming example: 3131-ACL-AITR-CV-NE-TRAL (3131-Atkins China Ltd-Airfield third runway-Civil discipline-New work-Third runway alignment)
Pipe Networks naming example: 3142-B&V-AWFW-UU-NE-SEA08 (3142-Black & Veatch Hong Kong Ltd-Airport wide foul water system-Underground utilities discipline-Zone 08 sewerage piping system)
Pressure Networks naming example: 3142-B&V-AWPWFH-UU-NE-PMT02 (3142-Black & Veatch Hong Kong Ltd-Airport wide potable water and fire hydrant system-Underground utilities discipline-Zone T02 potable piping system )
Corridor naming example: 3131-ACL-AITR-CV-NE-TR(3131- Atkins China Ltd-Airfield third runway-Civil discipline-New work-Third runway corridor model)
1
Project
2
Author
3
Location
4
Main Discipline
5
Type
6
User Defined
Field
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 52/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
6 Collaboration Site
6.1. Purpose of Collaboration Site and Its Uses
Level 2 BIM requires project collaboration and information exchange between
project teams and engineer disciplines. In addition to project-specific CDEs (if any),
AAHK-designated collaboration platform shall be used to exchange their BIM files
for interfacing areas and BIM coordination.
6.2. Collaboration Site Folder Structure Example
All BIM information shall be shared on the collaboration platform, which is a CDE
(Common Data Environment).
The folder structure example is shown below:
(Optional)
Level 4
Software
Level 3
Date
Level 2
Project
Level 1
Categories
Level 0
Root
Root
Folder
400
WIP
Contract #
(e.g. 252)
Date
(e.g. 20160101)
File Type
(e.g. Civil3D)
File Type
(e.g. Navisworks)
File Type
(e.g. Revit)
Date-D##
(e.g. 20160101-D##)Contract #
(e.g. 3138)
410 3RS
Collaboration
00 Library
01 Sub-Folder Sample
Contract #
(e.g. 252)
Contract #
(e.g. 3138)
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 53/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Folder naming conventions are applicable to all BIM models including Revit model,
Navisworks model and all drawings generated from BIM.
Only letters A-Z, hyphen, underscore and numbers 0-9 for all fields; and
Do not use spaces; all fields shall be separated (if necessary) by a hyphen
character “-”.
6.2.1. Level 1: Categories
400 WIP: models/files exchanged exclusively between individual contract
awarder and AAHK
410 3RS Collaboration: models/files exchanged between Design Consultants
and Contractors who have interfacing scope, and shared with AAHK.
The file extension shall not be amended or deleted.
6.2.2. Level 2: Project
Use official project number according to AAHK contract number.
Under “400 WIP” folder, each Design Consultant and Contractor has read and
write rights to its corresponding project folder only.
Under “410 3RS Collaboration” folder, each Design Consultant and Contractor
has read and write rights to its corresponding project folder, and read rights to
interfacing projects.
Under “410 3RS Collaboration” folder, each Design Consultant and Contractor
has read rights to “00 Library” where BIM templates, shared parameters, shared
families and standard documents are stored, sorted by software/file/document
types.
6.2.3. Level 3: Date (to be created by Design Consultants / Contractors)
YYYYMMDD format for periodic uploads
For example: BIM files being uploaded on 1st January, 2016.
YYYYMMDD-D## format for deliverables
For example: 20160101-D08 for Deliverable 08 submitted on 1st January, 2016.
Refer to “01 Sub-Folder Sample” folder for example.
6.2.4. Level 4: Software (Optional; to be created by Design Consultants and Contractors)
Design Consultants and Contractors shall elect to create folders to place different
file types. For example: Revit, Navisworks, Civil3D. To retain links within uploaded
models, the relative folder structure shall be aligned to Design Consultants’ and
Contractors’ local working directories.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 54/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
6.3. User Access
User accounts are created for authorised staff of AAHK, Design Consultants and
Contractors and AAHK-designated BIM Consultant. Each party shall elect key staff
whose access will be granted subject to AAHK review and approval.
For example, in the collaboration structure example shown in Section 6.2, different
access arrangements shall be assigned to each party:
Design Consultants and Contractors have full read and write rights to their
corresponding project folder (level 2) in “400 WIP” folder (level 1).
Access rights among AAHK, Design Consultants and Contractors are
customise d based on inter-project interfacing and collaboration needs.
Design Consultants and Contractors have read and write rights to their
corresponding project folder (level 2) in “410 3RS Collaboration” folder (level
1), and read rights to interfacing projects.
6.4. BIM Library
A BIM library folder (“00 Library” under “410 3RS Collaboration”) holds all BIM
template and reference contents for AAHK BIM works, including shared libraries
and shared parameters, as a baseline from which all projects are set up.
6.5. Upload Procedures
6.5.1. WIP Upload Procedures
Following each BIM coordination meeting (held bi-weekly or as required by AAHK
and project schedule/programme), the latest set of working models and clash
detection files shall be uploaded to the collaboration platform.
Collaboration folder stores all BIM documents for collaboration purposes.
WIP folder stores all BIM documents for AAHK and AAHK-designated BIM
Consultant access and review only.
A dated subfolder shall be created first in YYYYMMDD format in either WIP or
Collaboration folder. The complete set of BIM files shall then be uploaded into this
folder directly while maintaining relative link with correct relative folder structure (if
any).
Upon uploading completion, all affected parties shall be informed including AAHK
project management team, AAHK-designated BIM Consultant and the relevant
Design Consultants and Contractors. Following information shall be notified.
Uploaded files (list of file names)
Location (indicating dated sub-folder)
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 55/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
Summary of purpose of contents
6.5.2. Upload Frequencies
Starting from schematic design stage, WIP models shall be uploaded on a bi-
weekly basis, unless otherwise agreed with AAHK.
Starting from detailed design stage, current project data shall be uploaded on
a bi-weekly basis, unless otherwise agreed with AAHK.
During Construction Stage, Contractors shall upload current project data on a
bi-weekly basis, unless otherwise agreed with AAHK.
6.5.3. Final Deliverables Upload
Submission of final shall follow AAHK’s official submission protocols as agreed with
Design Consultants and Contractors.
Following the official submission, a dated subfolder shall be created in
YYYYMMDD-D## format parallel to collaboration folders, and upload all BIM files
into the particular folder.
6.5.4. Log Files and Audit Trail
Submission of final shall follow AAHK’s official submission protocols.
Once uploaded, files and folders cannot be removed by any parties other than
collaboration platform administrators.
The collaboration platform has audit trail capabilities to record all activities of each
and every file and folder.
6.5.5. List of Uploaded Files
A list of all upload files shall be provided, including extension, as part of the
Appendix F - BIM Checklist for every upload.
APPENDIX D TO
APPENDIX J
Contract T18W008 PS AJ D 56/56 (Addendum No.1) AA 07/12/18 Primary Sorter Replacement Works for Baggage Handling System
Particular Specification – Appendix J – Appendix D
7 AAHK Asset Code Register Requirements
AAHK’s Technical Services Department (TSD) implements Airport Asset
Management System (AAMS) to maintain and manage airport assets. BIM models
shall be prepared to facilitate the information for AAMS, e.g. AAHK Asset Code
Register. In AAHK BIM Template, it has already been built with AAHK Asset fields
for all parties to input AAHK Asset Code Register in BIM model.
The AAHK’s Asset workflow, input format and requirements of AAHK Asset Code
register is described as followed.
7.1. AAHK’s Asset Workflow
AAHK’s Asset workflow is applicable to assets which are managed by AAHK.
Process of populate AAHK Asset Code registration is illustrated as following
diagram covering:
BIM standard and specification stage
Project execution
Project closure stage
Refer to Appendix E – BIM Process Map AAHK Asset Register Workflow for detail
diagram.
7.2. Input Format and Requirements of AAHK Asset Code Register
As AAHK Asset fields are already built in AAHK BIM Template, input requirements
(CCTV sub-system as an example) are described in Appendix J (v) – Input Format
and Requirements of AAHK Asset Code Register.
7.3. Schedule Generation
In addition to embedding compatible data formats and contents in the model,
Summarised data shall be generated, which export in Excel (.xls or .xlsx) format
compatible with AAHK-required asset and facility management standard (e.g.
CoBie), accompanying deliverables that require BIM model submission.
The schedules shall follow AAHK data requirements, with AAHK-required
parameters (including AAHK Asset fields) as column headers, and each model
element shall be listed in separate rows.
END OF BIM STANDARD