Case Study #7 for UTCM Report #08-14-03 "Making Mobility Improvements a Community Asset: Transportation Improvements Using Context-Sensitive Solutions"

1. Project 7
State Route 79
Sedona area, Arizona
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2. SR 179
 Originally constructed during 1930s
 Serves scenic red rock corridor
 Tourist, recreational attraction
 Issues and project needs
 Congestion
 Safety
 Tourists stopping on road at vistas
 Sight distance limitations
 Limited shoulders
 Few turn lanes
 Diverse contexts
 Urban
 Rural
 Suburban
 Highly scenic landscapes Source: http://www.scenic179.com/ 2

3. Getting Started
 Initial ADOT design opposed
 Citizens
 Agencies
 Low public trust of ADOT
 ADOT initiated CSS process in late 1990s
 7 jurisdictions
 Addressed issues, objectives
 Provide natural vistas
 Accommodate pedestrians, bikes
 Maintain traffic flow during construction
Photos: Red rocks and recreation along SR 179. 3

4. CSS Process
 Public outreach program
 Public education forums
 Multiple charrettes
 Participants
 Stakeholders
 Public
 Advocates
 Environmentalists
 Topics
 Tours, general desired characteristics, core values
 Design charrettes
 Extensive public interaction
 Selection of desired alternative
 Design Advisory Panel
 Agencies
 Community volunteers
 Four design sections
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5. Design Features
 Dedicated turn lanes
 Roundabouts
 Capacity
 Speed management
 Bike, pedestrian paths
 Scenic pullovers, overlooks
 4-16 foot raised medians Source: http://www.scenic179.com/
 Bifurcated lanes within Coconino National Forest
 Alternating passing lanes
 Construction sequencing to avoid congestion
 Contractor incentives to reduce duration in central Sedona
 Wildlife underpass
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6. Design Features (cont.)
Source: http://www.scenic179.com/
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