Intermodal Transfer Terminal - Environmental Impact ...

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Intermodal Transfer Terminal - Environmental Impact Assessment Study 2017

Transcript of Intermodal Transfer Terminal - Environmental Impact ...

Page 1: Intermodal Transfer Terminal - Environmental Impact ...

Intermodal Transfer Terminal -

Environmental Impact Assessment Study

2017

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Intermodal Transfer Terminal –Bonded Vehicular Bridge and Associated Roads

Airport Authority Hong Kong

Intermodal Transfer Terminal –Bonded Vehicular Bridge and Associated Roads

Project Profile

August 2017

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TABLE OF CONTENTS

1 BASIC INFORMATION............................................................................................................ 1

Project Title ................................................................................................................... 1

Purpose and Nature of the Project ................................................................................. 1

Name of the Project Proponent...................................................................................... 1

Location and Scale of Project and History of Site ........................................................... 1

Type of Designated Projects .......................................................................................... 2

Name and Telephone Number of Contact Persons ........................................................ 2

2 OUTLINE OF PLANNING AND IMPLEMENTATON PROGRAMME ........................................ 3

Project Planning and Implementation ............................................................................ 3

Project Programme ....................................................................................................... 3

Project Interface ............................................................................................................ 3

3 POSSIBLE IMPACT ON THE ENVIRONMENT ....................................................................... 4

Environmental Impacts from the Project ........................................................................ 4

Air Quality ..................................................................................................................... 4

Noise ............................................................................................................................ 4

Water Quality ................................................................................................................ 5

Waste Management ...................................................................................................... 5

Land Contamination ...................................................................................................... 5

Ecology ......................................................................................................................... 6

Fisheries ....................................................................................................................... 6

Landscape and Visual ................................................................................................... 6

Cultural Heritage ........................................................................................................... 7

4 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT ............................................ 8

General ......................................................................................................................... 8

Air Quality ..................................................................................................................... 8

Noise ............................................................................................................................ 8

Water Quality ................................................................................................................ 8

Ecology ......................................................................................................................... 8

Fisheries ....................................................................................................................... 8

Landscape and Visual ................................................................................................... 9

Cultural Heritage ........................................................................................................... 9

5 ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED IN THE DESIGNAND ANY FURTHER ENVIRONMENTAL IMPLICATIONS ................................................... 10

Mitigation Measures for The Project ............................................................................ 10

Air Quality ................................................................................................................... 10

Noise .......................................................................................................................... 10

Water Quality .............................................................................................................. 11

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Waste Management .................................................................................................... 11

Ecology ....................................................................................................................... 12

Fisheries ..................................................................................................................... 12

Landscape and Visual ................................................................................................. 12

Severity, Distribution and Duration of Environmental Effects and Further Implications .. 12

6 USE OF PREVIOUSLY APPROVED EIA REPORTS............................................................. 13

LIST OF TABLE

Table 3.1 Daily Emissions from the Bonded Vehicular Bridge and Associated Roads (PeakDay)

LIST OF FIGURE

Figure 1 Location of the Project

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1 BASIC INFORMATION

Project Title

1.1.1 Intermodal Transfer Terminal (ITT) – Bonded Vehicular Bridge and AssociatedRoads (hereinafter referred to as “the Project”).

Purpose and Nature of the Project

1.2.1 The Hong Kong-Zhuhai-Macao Bridge (HZMB), when completed, will enhanceaccessibility between the Hong Kong International Airport (HKIA) and the Pearl RiverDelta (PRD). To capitalize on the HZMB, the Airport Authority Hong Kong (AAHK)is planning to introduce a hassle-free bonded vehicle service between existing HKIAand the PRD West through Hong Kong Boundary Crossing Facilities (HKBCF),similar to the bonded ferry service plying between the HKIA’s SkyPier and nine portsin the PRD, which would be substantially strengthen HKIA’s capability in extendingits catchment area to PRD West. To meet this demand, the AAHK plans to constructthe ITT adjacent to the SkyPier and it is necessary to build a bonded connectionbetween the ITT and the HKBCF to enable intermodal transfer of HKIA’s airpassengers to/from the HZMB without the need to go through Hong Kong’simmigration clearance. The provision of land connection between ITT and HKBCFhas been proposed by the AAHK. Environmental impact of the vehicular traffic hadalready been taken into consideration under the HKBCF EIA. Under this Project,AAHK decided to provide the land connection in the form of a bridge, namely BondedVehicular Bridge, to provide a direct and effective linkage between the ITT and theHKBCF.

1.2.2 Only air transit passengers by bonded vehicles will be permitted to access the area,and no public vehicle will be allowed to access the Bonded Vehicular Bridge.

1.2.3 This Project Profile is prepared to cover the related works of the Project to assistEnvironmental Protection Department (EPD) in determining the scope of theenvironmental issues associated with the Project which shall be addressed in theEnvironmental Impact Assessment (EIA) study together with the technical andprocedural requirements that the EIA study shall meet.

Name of the Project Proponent

1.3.1 The project proponent is the Airport Authority Hong Kong.

Location and Scale of Project and History of Site

1.4.1 The Bonded Vehicular Bridge will be the only vehicular access connecting the ITTand HKBCF Island. The Project site is situated between the HKBCF Island and theHKIA, at the south of the existing SkyPier. The reclamation works of the HKBCFIsland commenced in 2011 while the existing SkyPier commenced operation in 2009.Associated road works are also proposed at the HKBCF Island. Location of theProject and tentative layout plan is shown in Figure 1.

1.4.2 The Bonded Vehicular Bridge consists of a marine section and a land section onHKBCF. The marine section is a 5-span continuous deck marine viaduct connectingwith the transition deck at Level 5 of ITT. The bridge has a total length ofapproximately 360m; span length of ~76m is generally adopted. The land sectionviaduct is on curve going over the HKBCF seawall and proposed TopsideDevelopment. The land viaduct is a 3-span continuous deck with a total length ofapproximately 210m and span length up to ~70m. Box girder bridge deck section isrecommended for the whole bridge, which has an overall deck width between ~11m

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and ~15m, and a constant deck thickness of ~3m.

1.4.3 A robust and fast erection method is proposed for the bridge. A non-dredged methodis proposed for the pier construction. Temporary casing will be installed to retain soil.Reverse Circulation Drill will be used for excavation of rock socket and then installingsteel reinforcement fixing with permanent casing for concreting. At the marinesection, the pile caps are designed to be exposed above water so as to mitigate therisk of ship impact on bridge. The bridge deck section or segments will beprefabricated in a fabrication yard off-site. The marine section bridge decks will bedelivered to the site via marine transportation and erected on piers by lifting methodor float-in method using barges. For other spans, each span of bridge deck will belifted up by a mobile or crawler crane and supported on the bridge piers oralternatively lifting of the bridge segments on temporary falsework for the bridgeconstruction.

Type of Designated Projects

1.5.1 The Project is classified as the following Designated Projects (DPs) under Part I,Schedule 2 of the EIA Ordinance (EIAO):

· Item A.8 - A road bridge more than 100 m in length between abutments; and

· Item C.3(a) – Reclamation works resulting in 5% decrease in cross sectional areacalculated on the basis of 0.0 mPD in a sea channel.

Name and Telephone Number of Contact Persons

1.6.1 All queries regarding the Project can be addressed to:

Mr. Samuel Wong [Authority’s Representatives Delegate]

HKIA Tower, 1 Sky Plaza Road,

Hong Kong International Airport

Lantau, Hong Kong

Tel.: 2183 3036

Fax: 2182 3036

Email: [email protected]

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2 OUTLINE OF PLANNING AND IMPLEMENTATON PROGRAMME

Project Planning and Implementation

2.1.1 The Project will be implemented by engaging relevant professionals throughout theplanning, design, construction and implementation stages.

2.1.2 The construction works will be carried out by qualified contractors to be appointedunder various works contracts.

Project Programme

2.2.1 The construction works of the Project will tentatively commence in mid 2020 forcompletion in end 2022.

Project Interface

2.3.1 Major committed projects on Lantau that may have potential interface with the Projecthave been identified and listed below. Any cumulative impact from these concurrentprojects including but not limited to the following, will be addressed in the EIA asappropriate:

· Tung Chung New Town Extension and its associated infrastructure;· Tuen Mun – Chek Lap Kok Link;· Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities;· Planning, Engineering and Architectural Study for Topside Development at Hong

Kong Boundary Crossing Facilities (HKBCF) Island of the Hong Kong-Zhuhai-Macao Bridge (HZMB) — Feasibility Study ;

· Hong Kong-Zhuhai-Macao Bridge (HZMB) Hong Kong Link Road;

· North Commercial District (NCD), Chek Lap Kok Lot No. 3; and

· Expansion of Hong Kong International Airport (HKIA) into a Three-RunwaySystem (3RS).

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3 POSSIBLE IMPACT ON THE ENVIRONMENT

Environmental Impacts from the Project

3.1.1 It is anticipated that the construction of the Project would involve both marine basedand land based construction works including site clearance, minor excavation withlimited backfilling, bridge works, superstructure works, etc.

3.1.2 The potential impacts arising from the construction and the operation of the Projectare discussed below. Relevant prevailing statutory requirements will be consideredin the EIA to assess potential environment issues.

Air Quality

Construction Phase

3.2.1 Potential dust impacts generated from land based construction activities, such assite clearance, minor excavation with limited backfilling, and wind erosion of exposedarea, would not be significant. With implementation of suitable practice andmitigation measures (see Section 5), potential impacts on nearby Air SensitiveReceivers (ASRs) in the vicinity of the Project would be controlled to within relevantstandards.

Operational Phase

3.2.2 In the operational phase, potential air quality impacts from the limited vehicles on theBonded Vehicular Bridge and Associated Roads would not be significant. Themaximum daily traffic flow within 15 years upon operation of the Bonded VehicularBridge and Associated Roads would be about 950 vehicles trips on Peak Day whichincludes about 850 cross boundary bus trips and about 100 limousine trips to providefaster and premium service, subject to market demand and regulatory approval. Inaddition, new vehicles will be used and at least 20% of the vehicles for transferringpassengers across the Bonded Vehicular Bridge will be electrical. In case if morethan 100 limousine trips are anticipated in future, all extra limousine trips above 100will be facilitated by electrical vehicles. The potential air quality impact from theBonded Vehicular Bridge is considered insignificant. A daily emission burden fromthe vehicles on the Bonded Vehicular Bridge and Associated Roads is determinedusing the EMFAC-HK model v3.3 and presented in Table 3.1 below. As shown inTable 3.1, the emission from the Bonded Vehicular Bridge is small and insignificant.

Table 3.1 Daily Emissions from the Bonded Vehicular Bridge andAssociated Roads (Peak Day)

Pollutant Daily Emission (gram)NOx <125RSP <19FSP <18

Noise

Construction Phase

3.3.1 No adverse noise impacts on Noise Sensitive Receivers (NSRs) would be associatedwith the construction activities of the Project. Based on the current availableinformation, NSRs within the 300m study area include offices, Planned PassengerClearance Building and Hong Kong SkyCity Marriott Hotel. However, no NSR withopened windows for ventilation is identified within the 300m study area and the

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nearest NSR, the planned development at Tung Chung East Extension, would be~1.5km away.

Operational Phase

3.3.2 Similarly, no adverse noise impacts from the operation of the vehicle service areanticipated, given that no NSR with opened windows for ventilation is within the 300mstudy area.

Water Quality

Construction Phase

3.4.1 No open sea dredging will be involved for construction of the Bonded VehicularBridge. It is expected that the installation of bridge piles would only cause minordisplacement of marine sediment, which will quickly settle without significantincrease in suspended solids. Potential land based water quality impacts fromconstruction site runoff, wastewater from general construction activities or accidentalspillage of chemicals would be minor. Appropriate good practice measures shouldbe implemented (see Section 5) to minimize potential impacts on any nearby watersensitive receivers to comply with relevant standards.

Operational Phase

3.4.2 The formation of bridge piers may cause potential changes in flow regime in the seachannel between the HKIA and the HKBCF. However, there would still havesufficient flushing in the sea channel as there are box culverts connected the watersbetween the sea channel and southern area of the HKBCF. Accumulation ofpollutants in the sea channel is therefore not expected. Potential water qualityimpacts from road surface runoff with vehicle dust, tyre scrap or oil will be mitigatedby standard control measures (see Section 5).

Waste Management

Construction Phase

3.5.1 Solid waste generated from construction activities includes construction anddemolition (C&D) materials, chemical waste, general refuse etc. Since the Project islocated across the sea channel between the HKIA and the HKBCF, sediment mayalso be generated from the construction of the marine bridge piers. Standard goodsite practice will be implemented to avoid or minimise potential environmentalimpacts associated with handling, collection and disposal of wastes.

Operational Phase

3.5.2 Potential waste types generated during operation phase would include chemicalwastes from maintenance activities, and municipal waste from passengers and staff.Potential environmental impact arising from waste management is expected to beinsignificant with the implementation of good site practice.

Land Contamination

Construction Phase

3.6.1 The proposed land based construction areas is located on reclaimed land and thecurrent land uses are mainly construction sites of other projects. Significant landcontamination due to current land uses are considered unlikely.

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Operational Phase

3.6.2 No land contamination impacts are expected during the operation of the Project.

Ecology

Construction Phase

3.7.1 The land based work areas would be located within developed areas of the HKBCFIsland with no natural habitats. Therefore, no terrestrial ecological impact isexpected. Potential marine ecological impacts due to bridge pier formation works atthe water channel may include direct impacts on intertidal habitats, soft and hardbottom subtidal habitats and associated fauna, and indirect water quality impactsfrom raised sediments. Appropriate measures should be implemented to avoid,minimize or mitigate potential impacts to an acceptable level.

Operational Phase

3.7.2 The operation of the Bonded Vehicular Bridge and associated civil and structuralprovisions would unlikely cause adverse impact on terrestrial and marine ecology.

Fisheries

Construction Phase

3.8.1 Considering the minor nature of the pier installation works at the water channelbetween the HKIA and HKBCF Island, no adverse impact on fisheries resources isanticipated.

Operational Phase

3.8.2 The operation of the Bonded Vehicular Bridge would not impact on fisheriesresources.

Landscape and Visual

Construction Phase

3.9.1 Potential landscape impacts during construction phase would be mainly on the waterchannel landscape between the HKIA and the HKBCF. With the presence ofpassengers and visitors at HKBCF and NCD of HKIA, the construction works wouldunavoidably have visual impact at such a close viewing distance. While forresidential Visual Sensitive Receivers (VSRs) from Tung Chung Town at distant,limited visual impact is anticipated.

Operational Phase

3.9.2 The design of the Bonded Vehicular Bridge and associated civil and structuralprovisions will be visually compatible to the development of the Airport, HKBCF andproposed footbridge. It shall follow relevant aesthetic design guidelines andrequirements in Hong Kong. Limited landscape impact is anticipated during theoperation phase. Due to the VSRs, including passengers and visitors at NCD ofHKIA and HKBCF, are located close to the development, some unavoidable visualimpacts shall be expected.

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Cultural Heritage

3.10.1 In accordance with the conclusion in the approved HKBCF EIA Report, there is nounderwater cultural heritage within the study area. Since the Project area falls withinthe study area of the HKBCF EIA Study, there is unlikely underwater cultural heritageidentified within the Project area.

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4 MAJOR ELEMENTS OF THE SURROUNDING ENVIRONMENT

General

4.1.1 The Project is surrounded by a combination of transport infrastructure, commercialfacilities and Government facilities. Major land uses in the vicinity include thefollowing:

• Hong Kong Boundary Crossing Facility to the east;

• The Topside Development at the HKBCF Island to the east;

• North Commercial District, Chek Lap Kok Lot No. 3; and

• Three-Runway System of Hong Kong International Airport to the northwest

4.1.2 Environmental sensitive receivers have been identified based on existing andcommitted developments in the vicinity, as presented below.

Air Quality

4.2.1 The air quality assessment is defined as within 500m from the boundary of theproposed footprint of Bonded Vehicular Bridge. Potential ASR that may be affectedby the Project will be included in the air quality impact assessment. The nearestASR identified in the vicinity, such as the Passenger Clearance Building at HKBCF,Skypier, Hong Kong SkyCity Marriott Hotel, planned NCD and potential ASRs underthe HKBCF Topside Development.

Noise

4.3.1 Sources of noise impact would include the construction of the Bonded VehicularBridge, associated road works, etc. However, no existing and planned NSRs withopened windows for ventilation is identified within the 300m boundary from theBonded Vehicular Bridge.

Water Quality

4.4.1 Water Sensitive Receivers (WSRs) in the vicinity of the Project site that may beaffected by construction of the Bonded Vehicular Bridge will be included in the waterquality impact assessment. The key WSRs in the vicinity of the Project site wouldbe the cooling water intakes for the HKIA and the HKBCF.

Ecology

4.5.1 As the proposed land-based development would take place within developed areasat HKBCF, no terrestrial ecological sensitive receiver is identified near the Projectarea. No recognized marine sites of conservation significance are in the proximityof the proposed bridge pier works at the water channel. There may be presence ofcommon coral species as recorded previously on other parts of the Airport islandshoreline.

Fisheries

4.6.1 Fisheries resources in the vicinity of the proposed bridge would be limited, given thelocality is within the 420m sea channel between the HKBCF and Airport Island whereSkyPier is located. Ma Wan Fish Culture Zone (FCZ) is the nearest FCZ to theProject area and is located more than 12 km to the east.

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Landscape and Visual

4.7.1 The landscape resources around the proposed works are mainly open waters andvegetation on reclaimed land.

4.7.2 Key potential VSRs to be affected shall include passengers and visitors from HKBCF,NCD of HKIA, and residents of Tung Chung Town at distant.

Cultural Heritage

4.8.1 There is unlikely cultural heritage identified within the Project area, based on theapproved HKBCF EIA Report.

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5 ENVIRONMENTAL PROTECTION MEASURES TO BE INCORPORATED IN THEDESIGN AND ANY FURTHER ENVIRONMENTAL IMPLICATIONS

Mitigation Measures for The Project

5.1.1 Practicable and effective mitigation measures will be adopted for construction andoperation of the Project, as necessary, to ensure compliance of relevantenvironmental standards. Possible key measures to be adopted, subject to studies,are listed below.

Air Quality

5.2.1 To minimize air quality impact to the identified ASRs as stated in Section 4.2, thefollowing mitigation measures will be proposed.

Construction Phase

5.2.2 Dust mitigation measures as stipulated in the Air Pollution Control (Construction Dust)Regulation (Cap. 311R) will be implemented to control fugitive dust emission.Possible key measures include:

• Regular watering on all exposed and unpaved surface, particularly during dryweather;

• Frequent watering for particularly dusty construction areas and areas close toASRs;

• Minimise temporary storage of stockpiles on site;

• Cover excavated or stockpile of dusty material by impervious sheeting or sprayingwith water to maintain the entire surface wet;

• Wheel washing facilities at the exit points of the site;

• Cover dusty materials on vehicles leaving the site; and

• Dust suppression measures.5.2.3 Requirements stipulated in the Air Pollution Control (Non-road Mobile Machinery)

(Emission) Regulation will also be followed to control potential emissions from non-road mobile machinery during construction phase where appropriate.

Operational Phase

5.2.4 In view that limited daily traffic flow and adoption of new vehicles with at least 20%electrical vehicles for transferring passengers across the Bonded Vehicular Bridge,negligible vehicular emission impact from the Bonded Vehicular Bridge is envisagedand further mitigation measures are considered unnecessary.

Noise

5.3.1 Despite no NSRs is identified within the 300m boundary from the project area, thefollowing measures and good practices are proposed to minimize noise disturbance.

Construction Phase

5.3.2 Possible key measures to reduce construction noise impact include:

• Quiet plants, silencers or mufflers on construction equipment;

• Movable and temporary barriers to screen particular items of plant or noisyoperations;

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• Noise screening structures or purpose-built noise barriers along the site boundary;and

• Good site practices such as locating noisy equipment and activities at farthestpracticable distance, scheduling noisy activities to minimise noise exposure,proper maintenance of construction plant, devising quiet methods of working, andregular noise monitoring.

Operational Phase

5.3.3 No mitigation measures for the operation phase is required.

Water Quality

Construction Phase

5.4.1 Possible key measures to control water quality impact may include:

• double silt curtains should be employed for all marine construction works;

• all vessels should be sized such that adequate clearance is maintained betweenvessels and the sea bed at all states of the tide to ensure that undue turbidity isnot generate by turbulence from vessel movement or propeller wash; and

• good site practice in accordance with the ProPECC PN 1/94 Construction SiteDrainage shall be implemented as practicable for land-based constructionactivities.

Operational Phase5.4.2 Proper drainage systems with silt traps and oil interceptors should be installed,

maintained and cleaned at regular intervals.

Waste Management

5.5.1 Possible key measures to reduce the quantities of C&D materials, chemical waste,general refuse etc. for offsite disposal and to handle the sediment include:

C&D Materials, Chemical Waste and General Refuse

• Sorting and reuse on site as far as practicable;

• Handle by registered and licensed waste hauliers under Waste DisposalOrdinance (Cap. 354) and Waste Disposal (Chemical Waste) (General)Regulation (Cap. 354C);

• Nomination of an approved person for waste management;

• Separate chemical wastes for handling and treatment at licensed facilities;

• Proper record system for wastes generated, recycled and disposed of;

• Ticket-trip system in accordance with Development Bureau Technical Circular No.6/2010 Trip Ticket System for Disposal of Construction & Demolition Materials;

• Waste Management Plan in accordance with ETWB TCW No. 19/2005Environmental Management on Construction Sites;

• Segregate different types of waste for storage;

• Recycle unused chemicals with remaining functional capacity;

• Use of non-timber form work; and

• Proper storage and site practices.

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Sediment

• Handle in accordance with ETWB TCW No. 34/2002 Management ofDredged/Excavated Sediment;

• Cover contaminated sediments with tarpaulin for stockpiling and transportation;and

• Properly designed and maintained construction plant and equipment to minimiserelease of silt, sediments, contaminants or other pollutants.

Ecology

5.6.1 Due consideration will be given to avoid potential impact on ecological resources asfar as possible. For unavoidable direct impacts to marine ecological resources,practicable mitigation measures such as scheduling of works to avoid specific areas,alternative design/construction methods, or transplant of significant species wouldbe considered to minimize the impacts as necessary. Good site practices as well asthe water quality impact mitigation measures proposed in Section 5.4 of this ProjectProfile is anticipated to minimize indirect impacts to marine ecological sensitivereceivers.

Fisheries

5.7.1 The water quality impact mitigation measures proposed in Section 5.4 of this ProjectProfile would be adopted to minimize any potential impact on fisheries.

Landscape and Visual

5.8.1 Possible key measures to reduce potential landscape and visual impacts include:

Construction Phase

• Minimize disturbance to significant landscape resources is part of the design;

• Optimize construction activities, e.g. minimizing extent of temporary works area,installing site hoardings and minimizing illumination on non-target areas;

• Minimize construction periods where possible; and

• Early establishment of planting areas as far as appropriate.

Operational Phase

• Provision of greening, aesthetic architectural design of aboveground structures toenhance landscape and visual aesthetic of the area in proximity;

• Sensitive lighting design and installation to minimize night-time glare; and

• Tree preservation in accordance with Development Bureau Technical Circular(Works) No. 7/2015 – Tree Preservation.

Severity, Distribution and Duration of Environmental Effects and FurtherImplications

5.9.1 Subject to the findings of detailed impact assessments, control measures will beidentified to mitigate the impacts to acceptable levels. The possible severity,distribution and duration of environmental effects such as beneficial and adverseeffects; short and long term effects; secondary and induced effects; cumulativeeffects and trans-boundary effects from committed projects, and further implicationswill be considered and addressed in the EIA, where applicable.

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6 USE OF PREVIOUSLY APPROVED EIA REPORTS

6.1.1 Relevant EIA reports would be made reference to as appropriate in the course of theEIA study for the Project including:

• Tung Chung New Town Extension (Register No.: AEIAR-196/2016);

• Expansion of Hong Kong International Airport into a Three-Runway System(Register No.: AEIAR-185/2014);

• Tuen Mun – Chep Lap Kok Link (Register No.: AEIAR-146/2009);

• Hong Kong - Zhuhai - Macao Bridge Hong Kong Boundary Crossing Facilities(Register No.: AEIAR-145/2009); and

• Hong Kong - Zhuhai - Macao Bridge Hong Kong Link Road (Register No.:AEIAR-144/2009)

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Figure

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AIRPORT AUTHORITY HONG KONG

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