Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects (2021) / Chapter Skim
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5 Introduction 1.1 Purpose of Guidelines The design guidelines presented in this report were developed to assist highway agencies in making geometric design decisions as part of the project development process for resurfacing, restoration, and rehabilitation (3R) projects.
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6 Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects The guidelines address 3R projects initiated for any reason.
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Introduction 7 In 1977, AASHTO proposed a set of geometric design criteria for 3R projects that were less restrictive than the geometric design criteria in use for new construction and reconstruction (6)
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