U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
The Phase I study (retrospective) was competed for:
The Phase II study (retrospective) was completed for:
The Phase III (build to evaluate) “before” evaluation is complete, and is currently in a data-collection period for “after” evaluation of:
The Phase IV is complete. This phase was conducted for:
Phase V is a prospective study and the “before” evaluation is complete. This study is currently in a data-collection period for “after” evaluation of:
The Phase VI, Pavement Safety Performance, is complete. Eleven strategies were evaluated for:
High-Friction Surface Treatment (HFST), the second phase of Every Day Counts (EDC2).
The Phase VII is a retrospective study. This study started in November 2012 and three of its four strategies are complete. The following are the four strategies of this phase:
The Phase VIII is a retrospective study. This study started in August 2013 and it is to be completed in 2015. The following five strategies will be evaluated:
NEW: Phase IX is a retrospective study and will start in June 2015. The study’s intent is to provide reliable crash modifications factors (CMFs) and Benefit to Cost Ratios (B/C) ratios for different types of High Friction Surface Treatments (HFST) and to recommend materials, specifications, applications, and where and under what conditions to use them to effectively reduce roadway departure crashes. This study will quantify HFST performance overtime to recommend HFS treatments for best performances with technical details, and will recommend a set of required tests with equipment for evaluation of HFS treatment surface characteristics and performance evaluation for practitioners use.