The aging U.S. highway system, coupled with fiscal constraints, is placing increased pressures on highway agencies to maintain the highway system in a cost-effective manner and is, thus, creating greater needs for 3R projects.
The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 244: Developing Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects presents the results of research to develop improved design guidelines for 3R projects. The guidelines were developed to replace the older guidance presented in TRB Special Report 214: Designing Safer Roads: Practices for Resurfacing, Restoration, and Rehabilitation.
Supplementary to the Document is NCHRP Research Report 876: Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects. Two spreadsheet tools for benefit–cost analysis in support of design decisions for 3R projects also accompany the report. Spreadsheet Tool 1 is a tool for analysis of a single design alternative or combination of alternatives. Spreadsheet Tool 2 is a tool for comparison of several design alternatives or combinations of alternatives.
Table of Contents
|Chapter 1. Introduction||12-14|
|Chapter 2. Literature and Current Practice Review||15-20|
|Chapter 3. Highway Agency Survey Results||21-38|
|Chapter 4. Current Highway Agency 3R Design Guidelines||39-44|
|Chapter 5. Crash Reduction Effectiveness of Specific Design Improvement Types||45-70|
|Chapter 6. 3R Improvement Implementation Costs||71-73|
|Chapter 7. Application of Benefit cost Analysis for 3R Projects||74-104|
|Chapter 8. Spreadsheet Tools to Perform Benefit cost Analysis for 3R Improvement Alternatives||105-109|
|Chapter 9. Development of Design Guidelines for 3R Projects||110-115|
|Chapter 10. Conclusions||116-118|
|Chapter 11. References||119-122|
|Appendix A. 3R Project Implementation Cost Estimation Procedures||123-143|
|Appendix B. Survey Questionnaire||144-162|
|Appendix C. Updated Crash Cost Estimates||163-165|
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