along with guidance and resources on using CMFs in road safety practice.
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What are CMFs?
A crash modification factor (CMF) is used to compute the expected number of crashes after implementing a countermeasure on a road or intersection.
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Updated Ratings
The CMF Clearinghouse transitioned to the CMF rating criteria developed as part of the NCHRP 17-72 project for the 2nd edition of the Highway Safety Manual on February 15, 2021.
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