To develop reliable crash modification factors (CMFs) for new and innovative low-cost safety improvements that have not been proven. These CMFs are determined by conducting scientifically rigorous before-and-after evaluations at sites in the United States where these strategies are being implemented. This Transportation Pooled Fund (TPF) Study has 38 Department of Transportation State members, and provides a platform for State members to conduct peer exchange and technology transfer related to low-cost safety countermeasures. Also, this TPF determines high priority safety improvement needs through a balloting process in its annual technical advisory committee meeting.
The key project objectives are to develop reliable estimates of the effectiveness of the safety improvements that are identified as strategies in the National Cooperative Highway Research Program Report 500 Guides. These evaluations provide crash modification factors (CMFs) and benefit/cost (B/C) ratio for nationwide field applications of proven low-cost safety countermeasures.