RESILIENT BUILDINGS AND SITE DESIGN
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3. Resilient Streetscape Transition Zone
The following section includes graphics and descriptions showing common features of each building typology and applicable best practices for resilient design, with an emphasis on building-scale urban design solutions and principles for streetscape transition zones. Many of the design solutions described for one building type can be used for other building types and uses.
Diagram of desired streetscape transition zone. Source: City and County of Honolulu. “Transit-Oriented Development and Green Infrastructure”.
The Resilient Streetscape Transition Zone is the area between the street curb and building facade, providing for an accessible slope up to the building’s required Base Flood Elevation or Design Flood Elevation (until adjacent streets and other properties are raised to same level). This zone should mitigate the impact of the elevation change on the public realm by including amenities such as flood resistant plantings, sidewalks, seating, trees, awnings, and other placemaking elements or design considerations.
This zone typically transcends from the project site into the public right-of-way (ROW), and also interfaces with adjoining properties. Consequently, these principles will require public and private landowner collaboration, including partnerships and agreements over construction and maintenance responsibilities, to plan a coherent street block and pedestrian streetscape that minimizes the impacts of hills/ valleys and off-site drainage.
As all improvements must comply with existing regulations and standards, including the Americans with Disabilities Act (ADA) Accessibility Guidelines, certain modifications will likely need to be considered.
(Back to Climate Adaptation)
RELATED DOCUMENTS
Climate Adaptation Design Principles for Urban Development – December 2020
Climate Adaptation Background Research – November 2020
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