Website Resources » Enforcement » Crash Avoidance Technologies » Crash Modification Factors Clearinghouse

Crash Modification Factors Clearinghouse

Description:

This FHWA website provides crash modification factors (CMF), as well as, guides for how to use and/or develop CMF.

“A crash modification factor (CMF) is a multiplicative factor used to compute the expected number of crashes after implementing a given countermeasure at a specific site. The Crash Modification Factors Clearinghouse houses a Web-based database of CMFs along with supporting documentation to help transportation engineers identify the most appropriate countermeasure for their safety needs. Using this site, you can search to find CMFs or submit your own CMFs to be included in the clearinghouse.”