Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects (2021) / Chapter Skim
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1 Resurfacing, restoration, and rehabilitation (3R) projects are typically initiated on the basis of current or anticipated pavement conditions that indicate the need for pavement resurfacing.
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2 Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects guidelines can also be applied to projects initiated for other reasons, as long as the project does not involve new construction or reconstruction.
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Summary 3 known and should serve as a key factor in design decisions. Unlike new construction and reconstruction projects, which are designed in accordance with dimensional design criteria presented in the AASHTO Green Book (4)
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4 Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects Crash Reduction Effectiveness of 3R Improvements The crash reduction effectiveness of design improvements that are commonly incorporated in 3R projects is documented in these guidelines on the basis of crash modification factors (CMFs)
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