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TRB’s National Cooperative Highway Research Program (NCHRP) Report 670: Recommended Procedures for Testing and Evaluating Detectable Warning Systems explores a set of recommended test methods for evaluating the durability of detectable warning systems. These methods address exposure regimes, test procedures, and evaluation criteria to help select detectable warning systems that provide long-term performance and durability while meeting the requirements of the Americans with Disabilities Act Accessibility Guidelines.

The appendix contained in the research agency’s final report provides further elaboration on the work performed in this project. This appendix titled Research Leading to the Development of Methodology for Durability Assessment of Detectable Warning Systems is available online.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2010. Recommended Procedures for Testing and Evaluating Detectable Warning Systems. Washington, DC: The National Academies Press. https://doi.org/10.17226/22937.

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Publication Info

105 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/22937
Chapters skim
Front Matter i-vii
Summary 1-2
Chapter 1 - Background 3-5
Chapter 2 - Research Approach 6-8
Chapter 3 - Findings and Applications 9-25
Chapter 4 - Conclusions and Recommendations 26-27
References 28-28
Attachment - Recommended Methods of Test for Evaluating Durability of Detectable Warning Systems 29-104
Appendix - Research Leading to the Development of Methodology for Durability Assessment of Detectable Warning Systems 105-105
Abbreviations used without definitions in TRB publications 106-106

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