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Measures of accessibility provide important information about the performance of the transportation system across all modes in meeting human needs.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 1000: Accessibility Measures in Practice: A Guide for Transportation Agencies describes measures of accessibility—defined as the ease with which travelers can reach valued destinations—and how these measures can be implemented by transportation agencies.

An associated conduct of research report, NCHRP Web-Only Document 330: Accessibility Measures in Practice, is available. Also supplemental to the report are a digital version of Appendix F, which contains worksheets to facilitate the step-by-step process described in Chapter 3, and Appendix G, which guides users of the worksheets.


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