The Integration of LID and Urban Design
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Transcript of The Integration of LID and Urban Design
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The Integration of LID & Urban Design
Mark Lewis – Boffa Miskell Ltd
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1. Principles for LID and Urban Design
2. Integrated Design Approaches
3. Methodologies -
“The Toolkit”
The Integration of LID & Urban Design ___________________________________
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The Integration of LID & Urban Design ___________________________________
• Auckland Regional Council TP124
• MfE
Urban Design Protocol –
The Seven C’s
• Comparison of LID and Urban Design Principles
1. Principles for LID and Urban Design
2. Integrated Design Approaches
3. Methodologies -
“The Toolkit”
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ARC TP124 –
LID Definition
Low Impact Design is a design approach for site
development that protects and incorporates
natural site features into erosion and sediment
control and stormwater management plans.
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ARC -
TP124
1.
Achieve multiple objectives
2.
Integrate stormwater management and design early in the site planning process
3.
Prevent rather than mitigate
4.
Manage stormwater as close to the point of origin as possible
5.
Rely on natural processes within the soil mantle and the plant community
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MfE
Urban Design Protocol
Urban Design is concerned with the design of the buildings, places, spaces and networks that make up our towns and cities, and the ways people use them. It ranges in scale from a metropolitan region, city or town down to a street, public space or even a single building. Urban design is concerned not just with appearances and built form but with the environmental, economic, social and culturalconsequences of design.
It is an approach that draws together many different sectors and professions, and it includes both the process of decision-making as well asthe outcomes of design.
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The Seven C’s
1.
Context
2.
Character
3.
Choice
4.
Connections
5.
Creativity
6.
Custodianship
7.
Collaboration
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Comparison of LID and Urban Design Principles
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Comparison of LID and Urban Design Principles
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Synergies for LID and Urban Design Approaches
1.
Based on the physical, spatial and planning context
2.
Adopt integrated design
and inter-disciplinary
approaches
3.
Encourage intensification
or clustering of built form
4.
Encourage innovation
through planning flexibility and responsive
design
5.
Adhere to sustainability
models
6.
Provide for multiple objectives
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Conflicts to reconcile
1.
Urban grid vs
natural drainage pattern
2.
Urban intensification with potential effects to environmental resources
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Reconciling the Urban Grid
1.
Base grids upon topography
2.
Strategic crossings based on travel distance
3.
Flexible rules for carriage width and riparian buffers
4.
Favored connectivity for pedestrians/ bikes
5.
Enhanced stream systems internal to blocks
6.
Pedestrian connections along stormwater systems
7.
Home-zone streets integrated with riparian open space
8.
Landscape connectivity using urban ecology elements
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1.
Provide comprehensive planning frameworks for urban form, infrastructure, and natural resources at appropriate representative scales
2.
Disconnect stormwater from reticulated systems and redirect to LID treatments that are appropriate for the urban typology
3.
Provide for urban ecology responses
4.
Design environmental adaptations for urban effects
Reconciling Urban Intensification & Effects on the Environment
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• Perceived Values for Stormwater
• International Best Practice
• Auckland Region
1. Principles for LID and Urban Design
2. Integrated Design Approaches
3. Methodologies -
“The Toolkit”
The Integration of LID & Urban Design ___________________________________
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Perceived Values of Stormwater
Adaption of the Hydro-social contract (Brown, Keith and Wong 2008)
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• Low impact Design (LID) in the US
• Sustainable Urban Drainage Systems (SUDS) in the UK
• Water Sensitive Urban Design (WSUD) in Australia
International Best Practice
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•
Integration of ‘four waters’
•
Water harvesting
•
Public-Private partnerships
•
Micro-grading and soil conservation
•
Regional Perspectives
•
Integration of stormwater with architecture
•
Celebration and interpretation of stormwater in urban spaces
•
“Living Streets”
International Best Practice
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“Living Streets”
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Auckland Region
A review of planning provisions within the region revealed:
• Stormwater integration in structure planning
• LID practice within design codes
• Water values introduced for urban vision documents
• The beginning of formalised inter-departmental discussion
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Auckland Region
Generally the review identified the opportunity for:
•
Further integration of LID and Urban Design policy directives
•
Comprehensive planning frameworks at complementary and representative scales
•
Selective approaches to LID and UD across representative urban and environmental typologies
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1. Principles for LID and Urban Design
2. Integrated Design Approaches
3. Methodologies -
“The Toolkit”
The Integration of LID & Urban Design ___________________________________
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Integrated Design Response
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Regional or Municipal Scale
Catchment orNeighbourhood Scale
Block or Site Scale
Comprehensive Planning Framework
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“The right thing in the right place.”Bruce McKenzie (2009)
1.
Comprehensive planning framework based on scale-specific assessment and analysis
2.
Integrated design responses based on urban and environmental transitions
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Regional Scale –
Comprehensive Planning Framework
Based on Royal Commission Report for Auckland Governance
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Regional Scale –
Integrated Design Response
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Regional Scale –
Integrated Design Response
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Catchment Scale –
Comprehensive Planning Framework
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Catchment Scale –
Integrated Design Response
UPPER
LOWER
MIDDLE
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Block Scale –
Comprehensive Planning Framework
Based on ARC TR – Application of LID to Brownfields
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Block Scale –
Integrated Design Response
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Block Scale –
Integrated Design Response
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Block Scale –
Integrated Design Response
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1.
The TR ‘The integration of LID and Urban Design’
informs the review of TP124 in the following ways:
2.
Additional Recommendations include:
TP 124 Review
•
Investigate methods to reconcile the urban grid and natural drainage patterns
•
Promote streets as multi-purpose infrastructure and open space
•
Emphasize disconnection from reticulated systems
•
Explore architectural responses to stormwater
•
Inform policy for integrated planning and design approaches
•
Synergy between the principles of LID and urban design
•
Methodology for integrated planning and design