Additional Resources

The following resources are provided to assist CMF Clearinghouse users who are interested in obtaining guidance on other topics related to CMFs.

How to Develop and Use SPFs

Resources for Countermeasure Selection

Resources for Cost Benefit Analysis

Resources for Behavioral Countermeasures

International Resources

State Selected CMF Lists

Highway Safety Manual

Historical Resource: FHWA Desktop Reference for Crash Reduction Factors

Draft Final Report from NCHRP 17-63: Guidance for the Development and Application of Crash Modification Factors

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.