This techbrief provides information regarding research conducted by the Federal Highway Administration (FHWA) Development of Crash Modification Factors (DCMF) Program. This 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. Forty State departments of transportation (DOTs) provided technical feedback on safety improvements to the DCMF Program and implemented new safety improvements to facilitate evaluations. These States are members of the Evaluation of Low-Cost Safety Improvements Pooled Fund Study (ELCSI PFS), which functions under the DCMF Program.

This project evaluated the safety effectiveness of geometry and access management modifications and the installation of traffic control devices (TCDs) implemented as safety treatments against wrong-way driving (WWD) crashes at freeway locations. The ELCSI PFS Technical Advisory Committee selected the safety evaluation of WWD treatments as one of the priorities of the PFS.

Recommended citation: Federal Highway Administration, Development of Crash Modification Factors for Wrong-Way Driving Treatments (Washington, DC: 2023) https://doi.org/10.21949/1521942