Project 7 sr 79 sedona 092210

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

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Project 7 sr 79 sedona 092210

  1. 1. Project 7 State Route 79Sedona area, Arizona 1
  2. 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. 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 constructionPhotos: Red rocks and recreation along SR 179. 3
  4. 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 4
  5. 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 5
  6. 6. Design Features (cont.) Source: http://www.scenic179.com/ 6

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