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- Status: Published
Project Summary
Passing and climbing lanes provide additional lanes for vehicles to safely pass other vehicles while maintaining speeds. Implementing passing and climbing lane projects provides traffic operational and safety benefits at a cost that is far less than fully widening a highway. In an effort to enhance safety and mobility on Arizona's roadways, the Arizona Department of Transportation is currently updating the 2003 Passing and Climbing Lanes Prioritization Study. This update intends to further refine the identification and prioritization methodology previously utilized and to develop a prioritized list of candidate locations that would provide the most benefit to the traveling public.
Study Objectives
Review previous studies and research current best practices.
Analyze the safety and performance benefits of passing/climbing lanes constructed since the previous study.
Develop a revised methodology and ranking criteria.
Obtain feedback from ADOT District Engineers and other stakeholders, such as rural COGs and MPOs.
Develop a new prioritized list of candidate passing/climbing lane projects.
Final report: 1. Project overview -- Purpose and need -- Project charter -- Technical advisory committee -- Agency/stakeholder coordination -- ADOT partnering process -- Study process -- Passing/climbing lanes--Strategic Highway Safety Plan (SHSP) -- 2. Previous studies, reports, and research -- ADOT's previous methodology to identify and prioritize passing lane locations -- State-of-the-practice research for passing lanes -- ADOT's previous methodology to identify and prioritize climbing lane locations -- State-of-the-practice research for climbing lanes -- 3. Existing conditions assessment -- Data collection -- Existing passing and climbing lane inventory -- Evaluation of existing passing/climbing lanes--"before and after" comparison -- 4. Round One stakeholder outreach -- 5. Identification and prioritization methodology -- Methodology for passing lanes on two-lane highways -- Methodology for climbing lanes on two-lane highways -- Methodology for climbing lanes on multilane highways -- Round Two stakeholder outreach -- 6. Summary results–-passing lanes on two-lane highways -- 7. Summary results--climbing lanes on two-lane highways -- 8. Summary.
Executive summary: 1. Project overview -- Purpose and need -- Project charter -- Technical advisory committee -- Agency/stakeholder coordination -- ADOT partnering process -- Study process -- Passing/climbing lanes -- Strategic Highway Safety Plan (SHSP) -- 2. Identification and prioritization -- Existing conditions -- Passing lanes on two-lane highways -- Climbing lanes on two-lane highways -- Climbing lanes on multilane highways.
