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The 1st Edition, in 2010, of the AASHTO Highway Safety Manual revolutionized highway engineering practice by providing crash modification factors and functions, along with methods that use safety performance functions for estimating the number of crashes within a corridor, subsequent to implementing safety countermeasures.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 974: Application of Crash Modification Factors for Access Management, Volume 2: Research Overview documents the research process related to access management features. The research project is also summarized in this presentation.

NCHRP Research Report 974: Application of Crash Modification Factors for Access Management, Volume 1: Practitioner’s Guide presents methods to help transportation practitioners quantify the safety impacts of access management strategies and make more informed access-related decisions on urban and suburban arterials.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2021. Application of Crash Modification Factors for Access Management, Volume 2: Research Overview. Washington, DC: The National Academies Press. https://doi.org/10.17226/26162.

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Publication Info

390 pages |  8.5 x 11 |  Paperback
ISBN: 978-0-309-67438-6
DOI: https://doi.org/10.17226/26162

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