Submit a CMF Research Need

Please email Karen Scurry to submit any ideas or needs you have for CMFs that are not presented in the CMF Clearinghouse. If there are published studies on that topic, we will endeavor to target those studies for review and inclusion in the Clearinghouse. If there are no published studies on that countermeasure, we will view it as a future research need and potentially include it on the "CMF Most Wanted" list.


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.