Evaluation of high friction surfacing for reducing crashes at horizontal curves

A 2004 National Cooperative Highway Research Program report revealed that nearly one quarter of the United States’ highway fatalities occur along horizontal curves, with approximately 76 percent of these being single vehicle roadway departure crashes. In an effort to identify cost-effective ways to enhance safety at horizontal curves, the U.S. Federal Highway Administration initiated the Surface Enhancements at Horizontal Curves (SEAHC) study in 2008 to evaluate the use of using high friction surfacing (HFS) materials for reducing crashes at horizontal curves. Under this effort, HFS treatments have been applied to 16 curves in five different states to date. Treatments have been applied to various pavement types in various climates. Texture depth, profile depth, and skid resistance were measured on each curve just prior to application of the HFS, immediately following treatment, and at one year after installation. Crash data for the three year period preceding HFS application will be compared with crash data for the three year period following treatment to identify potential benefits of HFS treatment in crash reduction along horizontal curves. This paper will discuss the scope of the SEAHC study and present preliminary findings and results from the initial application and testing of the horizontal curves.


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 12p
  • Monograph Title: 24th World Road Congress Proceedings: Roads for a Better Life: Mobility, Sustainability and Development

Subject/Index Terms

Filing Info

  • Accession Number: 01519955
  • Record Type: Publication
  • ISBN: 2840602679
  • Files: TRIS
  • Created Date: Mar 26 2014 10:11AM