1. Report No.

2. Government Accession No.

3. Recipient's Catalog No.

4. Title and Subtitle

High Friction Surface Treatment Curve Selection and Installation Guide

5. Report Date

6. Performing Organization Code

7. Author(s)

Jennifer Atkinson (Leidos), Jacquelyn Clark (Leidos), Safak Ercisli (Leidos)

8. Performing Organization Report No.

9. Performing Organization Name and Address

Leidos
11251 Roger Bacon Dr.
Reston, VA 20190

10. Work Unit No. (TRAIS)

11. Contract or Grant No.

DTFH61-10-D-00024
Task Order No. 5002

12. Sponsoring Agency Name and Address

United States Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

13. Type of Report and Period Covered

14. Sponsoring Agency Code

HSA

15. Supplementary Notes

Joseph Cheung (joseph.cheung@dot.gov), Office of Safety Technologies (http://safety.fhwa.dot. gov/), served as the Technical Manager for the Federal Highway Administration (FHWA). Frank Julian (frank.julian@dot.gov) served as a reviewer and provided technical input.

16. Abstract

High Friction Surface Treatment (HFST) is a safety countermeasure that immediately reduces crashes, injuries, and fatalities associated with friction demand issues. The treatment can help compensate for deficient geometric designs, such as sharp curves, by providing the necessary friction to maintain traction on the intended path.

This publication provides information for identifying potential horizontal curves for HFST implementation in order to improve horizontal curve safety and prevent friction-related crashes. The report concisely describes the treatment, then step-by-step explains how to:

• Identify Curves for HFST,
• Conduct Field Verification,
• Select Aggregate and Binder Materials,
• Determine Application Method and Develop Specifications, and;
• Estimate Cost and Identify Funding.

The publication concludes by outlining potential results and benefits of the treatment.

17. Key Words

high friction surface treatment (HFST), horizontal curve, roadway departure crashes, safety treatments, pavement skid resistance, pavement friction

18. Distribution Statement

No restrictions.

19. Security Classification (of this report)

Unclassified

20. Security Classification (of this page)

Unclassified

21. No of Pages

40

22. Price

N/A