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DCMF Program | DCMF Program Studies | ELCSI-PFS



The Development of Crash Modification Factors (DCMF) Program — Studies


The Federal Highway Administration (FHWA) Development of Crash Modification Factors (DCMF) program was established in 2012 to address highway safety research needs for evaluating new and innovative safety strategies (improvements) by developing reliable quantitative estimates of their effectiveness in reducing crashes.

The DCMF Program Studies

  • Enhancing Statistical Methodologies for Highway Safety Research – Impetus from FHWA, Publication Number FHWA-HRT-14-081

    A goal of the DCMF program is to advance highway safety and related research by establishing a sound foundation for the development of statistical methodologies that need to be specifically developed for highway transportation applications in cooperation with the American Statistical Association and other statisticians’ communities. In pursuit of that goal, a two-day Technical Experts meeting brought together researchers from the road safety, statistics, and other statistics-related fields—such as epidemiology, biostatistics, and agent-based modeling—that have methodologies relevant to highway safety research applications. The meeting resulted in guidance and materials that supported the development of the publication, which identifies and discusses opportunities for advancing methodologies to estimate crash modification factors and safety performance functions. The publication outlines considerations and future steps to encourage researchers to explore these techniques in their research.

CMF Needs Assessment and Stakeholders Meeting

Crash Modification Factors Needs Assessment Workshop Summary Report, Publication Number FHWA-HRT-15-020

The Federal Highway Administration (FHWA) hosted a Crash Modification Factor (CMF) Stakeholder Meeting to provide a forum for CMF stakeholders to communicate ongoing efforts and identify opportunities for future collaboration in May 28, 2014. Crash Modification Factor stakeholders represent two primary groups: the CMF user community (transportation agencies and practitioners) and the CMF research and development community (individuals and agencies who plan, fund, direct, and carry out CMF research). Bringing these stakeholders together provided an opportunity to share insights and resources to further advance the research and development of CMFs and related activities.

The CMF Needs Assessment study was completed in June 2014, and its products below were used to enhance FHWA, CMF Clearinghouse, and related CMF studies.

  • Focus Crash Types and Risk Factors (to be completed in April 2016)

    The Focus Crash Types and Risk Factors (FCT-RF) study is a data-driven study to use scientific and reliable expertise, data resources, methodologies and procedures, and tools and required resources to determine sets of highway focus crash types and focus facilities and their associated risk factors for safety prioritization and systemic improvement applications.

    The FCT-RF will identify appropriate low-cost safety strategies for possible systemic safety improvements implementation on the focus facilities.

    The product of this study will be used for upcoming Federal Highway Administration FHWA-related highway safety research, and published and shared with the Transportation Research Board (TRB), American Association of State Highway and Transportation Officials (AASHTO), National Highway Traffic Safety Administration (NHTSA), American Statistical Association (ASA), University Transportation Centers (UTC), and other government agencies and highway-safety stakeholders.


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