Safety evaluation of profiled thermoplastic pavement markings / Craig Lyon, Bhagwant Persaud, and Kimberly Eccles.

Format:

Book

Government document

Author/Creator:

Lyon, Craig, 1974- author.

Persaud, Bhagwant Naraine, 1947- author.

Eccles, Kimberly A., author.

Contributor:

Amjadi, Roya, contributor.

Turner-Fairbank Highway Research Center, issuing body.

United States. Federal Highway Administration, sponsoring body.

Vanasse Hangen Brustlin

Persaud Lyon, Inc.

Language:

English

Subjects (All):

Road markings--Florida.

Road markings.

Road markings--South Carolina.

Reflectors (Safety devices).

Thermoplastics--Florida.

Thermoplastics.

Thermoplastics--South Carolina.

Traffic accidents--Florida.

Traffic accidents.

Traffic accidents--South Carolina.

Florida.

South Carolina.

Genre:

Online resources.

technical reports.

Technical reports.

Physical Description:

1 online resource (v, 35 pages) : illustrations

Place of Publication:

McLean, VA : U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center, March 2018.

Summary:

The Development of Crash Modification Factors (CMFs) program conducted safety evaluation of profiled thermoplastic pavement markings for the Evaluation of Low-Cost Safety Improvements Pooled Fund Study. This study evaluated application of profiled thermoplastic pavement markings. This strategy involves upgrading existing markings from flat-line thermoplastic or other standard markings to the profiled product. These profiled markings are designed to provide an improved level of vision to drivers, particularly during wet-road surface conditions. Geometric, traffic, and crash data were obtained for two-lane and multilane road sections in Florida and South Carolina where the treatment was applied to the edge lines. To account for potential selection bias related to regression-to-the-mean, an empirical Bayes before-after analysis was conducted. The analysis controlled for changes in traffic volumes over time and time trends in crash counts unrelated to the treatment. Intersection-related, snow/slush/ice, and animal crashes were excluded from the analysis. Only nighttime wet-road crashes, a principal target crash type, exhibited a material change--an estimated CMF of 0.908. Although the estimated CMF was based on a small sample of crashes and was not statistically significant at the 95-percent confidence level, it was consistent between the two States, which suggests that its use might be justifiable. The benefit-cost ratio for flat-line thermoplastic markings was 3.65:1 based on the consistent reduction in nighttime wet-road crashes and estimated with conservative cost and service life assumptions. Applying the sensitivity analysis recommended by the U.S. Department of Transportation, this value could range from 2.01:1 to 5.04:1. These results suggest that the treatment--even with conservative assumptions on cost, service life, and the value of a statistical life--can be applied cost effectively despite the relatively small crash reduction effects.

Notes:

"March 2018."

"Publication no. FHWA-HRT-17-075."

"HRDS-20/03-18(200)E"--Page 4 of cover

The Federal Highway Administration Office of Safety Research and Development Program and Task Manager was Ms. Roya Amjadi (HRDS-20).

Includes bibliographical references (page 35).

Online resource, PDF version; title from technical report documentation page (FHA, viewed April 16, 2018).

Other Format:

Print version: Lyon, Craig, 1974- Safety evaluation of profiled thermoplastic pavement markings

OCLC:

1037565191