|1. Report No. FHWA-SA-07-002
||2. Government Accession No.
||3. Recipient’s Catalog No.
|4. Title and Subtitle: Low-Cost Treatments for Horizontal Curve Safety
||5. Report Date: December 2006
|6. Performing Organization Code.|
|7. Author(s): McGee, Hugh W. and Hanscom, Fred R.
||8. Performing Organization Report No.
|9. Performing Organization Name and Address:
Vanasse Hangen Brustlin, Inc (VHB)
Transportation Research Corporation
8300 Boone Blvd., Ste. 700
Vienna, VA 22182-2626
11671 Audubon Trail
Markham, VA 22643
|10. Work Unit No.
|11. Contract or Grant No. DTFH61-05-D-00024|
|12. Sponsoring Agency Name and Address:
U.S. Department of Transportation Federal Highway
Administration (FHWA) Office of Safety
400 Seventh Street, SW, HSSD
Washington, DC 20590
|13. Type of Report and Period Covered: September 2005- December 2006
|14. Sponsoring Agency Code. FHWA/HSSD
|15. Supplementary Notes:
Contracting Officer’s Technical Representative: Larry J. Brown
Contracting Officer’s Task Order Manager: Debra Chappell
Technical editing was performed Vicki Glenn and production was performed by Michelle Scism, both from VHB.
|16. Abstract: Nearly 25 percent of fatal crashes occur at or near a horizontal curve. Hence, addressing the safety problem at horizontal curves is one of the 22 emphasis areas of the Strategic Highway Safety Plan prepared by AASHTO. Also, crashes at horizontal curves are a big component of the road departure crash problem, which is one of FHWA’s three focus areas. This publication was prepared to provide practical information on low-cost treatments that can be applied at horizontal curves to address identified or potential safety problems. The publication concisely describes the treatment; shows examples; suggests when the treatment might be applicable; provides design features; and where available, provides information on the potential safety effectiveness and costs. The treatments include:
The publication concludes with a description of maintenance activities that should be conducted to keep the treatments effective.
- Basic traffic signs and markings found in the MUTCD
- Enhanced traffic control devices
- Additional traffic control devices not found in the MUTCD
- Rumble strips
- Minor roadway improvements
- Innovative and experimental treatments
|17. Key Words: Horizontal curve, safety treatments, traffic control devices, pavement skid resistance, shoulders, rumble strips
||18. Distribution Statement: No restrictions.
|19. Security Classif. (of this report): Unclassified
||20. Security Classif. (of this page): Unclassified
||21. No. of Pages: 60