Due to its high potential for safety improvement, MoDOT deployed High Friction Surface Treatments (HFST) at several areas experiencing high crash rates since 2013. To determine if the HFSTs are providing the expected results and if MoDOT’s HFST program is effective, this study was conducted with the primary objective of evaluating MoDOT’s existing HFST sections with regard to their overall effectiveness (i.e., reduction in crashes) and benefit (i.e., return on investment). Statistical modeling of before/after crashes from MoDOT’s HFST sections showed that the HFST reduced crashes, with the reduction ranging from 13.7 percent to 79.5 percent and an overall reduction of 53.3 percent. The Benefit-Cost Analysis (BCA) carried out subsequently showed that MoDOT may expect a benefit-cost ratio (B/C) ranging from 2.3 to 409.1, with an overall average of 60.8. Based on these results, it is concluded that MoDOT’s HFST program is effective in reducing crashes with a high rate of return..
United States. Federal Highway Administration. Office of Safety
2017-10-01
Abstract:
A High Friction Surface Treatment is a cost-effective safety countermeasure in which a polishresistant aggregate such as calcined (i.e., heat treated)...
The Ohio Department of Transportation (ODOT) began installing median cable barriers in 2003 along highway medians for all roadways that were narrower ...
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United States Department of Transportation
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