SR 520 – A Metaphor for Sustainability David Taylor, CNU, Senior Vice President National Director,...
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Transcript of SR 520 – A Metaphor for Sustainability David Taylor, CNU, Senior Vice President National Director,...
SR 520 – A Metaphor for Sustainability
David Taylor, CNU, Senior Vice PresidentNational Director, Sustainable Transportation [email protected]
From Engineering to CSS
Context Sensitive Solutions (CSS)
“Context sensitive solutions (CSS) is a collaborative, interdisciplinary approach that involves all stakeholders to develop a transportation facility that fits its physical setting and preserves scenic, aesthetic, historic and environmental resources, while maintaining safety and mobility. CSS is an approach that considers the total context within which a transportation improvement project will exist." FHWA
CSS – IN SUSTAINABILITY’S MAINSTREAM
HDR offers sustainable transportation solutions that strive to address long-term environmental, social, and economic challenges by
– Delivering context sensitive solutions– Helping create livable communities– Providing multi-modal transportation choices– Protecting and enhancing environmental resources– Supporting economic growth and social equity
SR 520 – METAPHOR for SUSTAINABILITY
• HDR project with STS applications– Contextual analysis– Visioning – CSS– Integrated team design/charrette – Multi-modal - Auto/HCT/Ped/Bike– Reconnected fish passages– Wetlands restoration and mitigation– Bioswales and retention for water quality– GHG analysis– Health Impact Analysis– Sustainable materials/construction methods
SR 520 – FROM ENGINEERING to CSS
• Original Assignment – An engineering concept • Revised Plan – A CSS-driven corridor concept
– Intensive background analysis– Vision and strategy– The design charrette– Applied design elements– The preferred concept – Plan document
CHANGING THE TEAM
• Typical Team – Multi-disciplinary– All disciplines – Civil to structures to planning to landscape architect and
back to civil– Project meeting and start process all over again
• New Team - Integrated – All disciplines represented– Work in studio environment– Simultaneous planning and design – Coordinated decision-making– Final plan review by CSS Coordinator
CONTEXT for SR 520
VISION STATEMENT
ContextTo provide the region a cohesive, graceful travelway that respects and enhances the surrounding natural and built environments
CharacterBy creating structures and landscapes with high quality craftsmanship that reflect natural and contemporary character
ConnectionThat reconnects neighborhoods, communities and restore habitat
VISION DIAGRAM
• The SR 520 total experience – Inside Out and Outside In
• Inside Out - Design from the driver perspective – High Speed: Bold, simple forms– Slower Speed: Increasing detail– Very Slow Speed/Stop: Highly detailed
• Outside In - Design from the community perspective– Sensitive views– Community relationships– Landscape and design applications
STRATEGIC DIRECTION
BIG IDEAS
• “Air Land and Water”• Expressions
– Geologic – Layers of soil connected to land forms (strata, rocks, soil)
– Structural – Architectural bridge piers– Contemporary Naturalistic
• Air - Reflects lightness• Water - Recalls flowing forms
DESIGN ELEMENTS
Landscape Lids
Bridge Structures
Sound Walls
Railing/Fencing
Barriers and Medians Retaining Walls
DESIGN ELEMENTS
Public Art
Lighting
Lighting
Public SpacesPortals/Community Gateways
Signs and Structures
APPLICATION OF DESIGN ELEMENTS
ENGINEERED vs. DESIGNED
ENGINEERED vs. DESIGNED
SPECIALITY FORMLINERS
Sound Wall – Land Sound Wall - Water
LIDS – RECONNECTING COMMUNITIES
SR 520 NEXT STEPS
• Refining CSS – Active Community Collaboration– Formalize the decision-making process– Re-work the physical design space
• Deepen Sustainability Applications– GHG/HIA Advisory Services– Composite/recycled materials– Sustainable site construction– Construction waste management
SR 520 – A Metaphor for Sustainability
David Taylor, CNU, Senior Vice PresidentNational Director, Sustainable Transportation [email protected]
From Engineering to CSS