Developing Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects (2021) / Chapter Skim
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Pages 110-115
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99 Chapter 9. Development of Design Guidelines for 3R Projects This chapter describes the development of design guidelines for 3R projects, which was a key objective of the current research.
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100 9.2 Scope of Guidelines The scope of the guidelines is limited to projects involving only resurfacing, restoration, and/or rehabilitation. New construction and reconstruction projects are not addressed by these guidelines.
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101 changes)
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102 lower than the target LOS within the service life of the planned pavement resurfacing (typically 7 to 12 years) , or A design improvement would reduce sufficient crashes over its service life to be costeffective; i.e., the anticipated crash reduction benefits over the service life of the project should exceed the improvement implementation cost.
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103 in the AASHTO Highway Safety Manual (6,7) and recent research.
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104 removal of roadside objects, installation/rehabilitation of guardrail and other traffic barriers, intersection turn lane improvements, and other intersection improvements. The guidelines incorporate use of the spreadsheet-based benefit–cost analysis tools wherever this is feasible and suggest alternative approaches where the spreadsheet tools are not applicable.
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