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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.
Black and white mounted print with typescript annotation, "Dec 26, 1917, at the Grand Canyon of Ariz., on his honeymoon, Arthur "Cap" Taylor." Handwritten annotation, "San Diego, 1918."
Black and white print of one man and three women (unidentified) on a trail.
Black and white print of six men and four women (unidentified) astride mules on a trail. One man sits on rocks beside the trail.
Black and white print with members of the Luhrs family. Typescript annotation, "July 17th, 1914. Going down Bright Angel Canyon of Arizona, Those on the mules, from bottom up: unknown, unknown, Ella Luhrs, Emma Luhrs, George H. N. Luhrs, unknown, Roger Hunt, George Luhrs Jr., Catherine Margarita 'Gretchen' (Mrs Geo H. N.) Luhrs standing beside George Luhrs Jr." Beside the trail, a sign displays, "Photo by Kolb Brothers."