The CMF Clearinghouse offers a variety of resources in several topic areas. These include resources related to the CMF clearinghouse, trainings, the Highway Safety Manual, countermeasure selection, cost benefit analysis, behavioral countermeasures, and related publications. We will update these resources as new materials are made available. You can also read and subscribe to CMF Update, the e-Newsletter of the CMF Clearinghouse.
This site is funded by the U.S. Department of Transportation Federal Highway Administration and maintained by the University of North Carolina Highway Safety Research Center
The information contained in the Crash Modification Factors (CMF) Clearinghouse is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in the CMF Clearinghouse. The information contained in the CMF Clearinghouse does not constitute a standard, specification, or regulation, nor is it a substitute for sound engineering judgment.
