context sensitive solutions focus group session lynn purnell parsons brinckerhoff prosperity church...
DESCRIPTION
What is CSS not? Not a product; it is a process Not just design Not easyTRANSCRIPT
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Context Sensitive Solutions
Focus Group Session
Lynn PurnellParsons BrinckerhoffProsperity Church Road CorridorDecember 8, 2005
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Context Sensitive Solutions
Context Sensitive Solutions 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.
FHWA CSD Website Homepage
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What is CSS not?
• Not a product; it is a process• Not just design• Not easy
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What does CSS look like?
• Understand & define the Context before design begins
• Engage, listen & react to communities
• Apply flexible designs
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How is CSS different?
• Involve multi-disciplinary team early• Understand valued resources before designing• Involve stakeholders with open, continuous
communications• Balance transportation need with community
values• Employ roadway design that is creative, flexible
and safe
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Design Excellence-Standard PracticeDesign Excellence-Standard Practice
Safety
Mobility
Enhancement of
the NaturalEnvironmentPreservation
of Community Values
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Qualities of Excellence in Design
•Satisfies purpose & need as defined by stakeholders•Safe facility for user & community•In harmony with the community and the natural & built environment•Efficient and effective use of resources•Minimal disruption to the community•Lasting added value to the community
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Every Project has a Context
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Define the Context at beginning
• Transportation Context• Community Context• Environmental Context
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Transportation Context
• Functional Classification• System Context: regional or local• Setting: urban, rural, suburban
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Community Context
• Demographics: community or social groups
• Particular characteristics to be preserved or enhanced
• Historic features that are valued
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Environmental Context
• Ecology & wetlands• Cultural resources, including
historic sites• Farmland, parkland, etc.• Noise Receptors
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What is Purpose & Need?
• Seek input from technical team, public officials, focus groups & others.
• Seek consensus on problems and needs
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Consensus
Consensus does not mean that everyone agrees, but that groups and individuals can live with a proposal.
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M-463, Jackson, MS Project Goals
• Reduce congestion• Existing 2-lane volumes = 1,900 to
19,900 vpd. • Projected = 9,600 to 33,300 vpd
• Improve safety (limited sight distance)
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M-463 Context
• Commercial around interchange
• Suburban• Rural• Historic properties• Scenic view-
sheds• Major growth
potential
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M-463 Context Constraints
• Development close to roadway
• Scenic property close to roadway
• Historic properties need to be avoided
• Historic Church congregation objects to visual impacts of an “interstate highway”
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M-463 Existing Conditions
• Plan
• Section
Church
Silo
Church
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Proposed with DOT Criteria
• Plan
• Section
Church
Silo
Lake
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M-463 CSS Objectives
• Save silo and lake with narrower footprint
• Reduce visual impact by hiding the new lanes
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M-463 Design Considerations
• Change the requirement for a 90-ft. median
• Change design speed• Accept increased travel time
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M-463 Design Considerations
Construct the new lane at a lower elevation than the existing roadway
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M-463 CSS Results
• Preserved view-shed• Citizens and DOT
accept increased travel time as a positive trade-off
• Citizens gain respect for DOT because it listened to their concerns
• Project moves forward at reduced cost