Safety Effects of Wet-Weather Pavement Markings

While there has been increasing interest in wet-weather pavement markings due to their improved visibility and potential for enhancing road safety in wet-night conditions, there is a lack of research evaluating their safety effectiveness based on actual wet-night crash data. This paper presents the safety assessment of wet-weather pavement markings in the Atlanta District of the Texas Department of Transportation, conducted by two different evaluation approaches that are known to be rigorous and statistically defensible: Empirical-Bayes before-after analysis and full Bayes before-after analysis with comparison groups. The results from both approaches suggest that there are positive safety effects of wet-weather pavement markings for relevant crashes, providing evidence-based support for safety benefits of wet-weather markings.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AHD55 Standing Committee on Signing and Marking Materials.
• Corporate Authors:

  Transportation Research Board

  ,    
• Authors:
  • Park, Eun Sug
  • Carlson, Paul J
  • Pike, Adam M
  • 0000-0002-5820-3084
• Conference:
  • Transportation Research Board 98th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2019-1-13 to 2019-1-17
• Date: 2019

Language

• English

Media Info

• Media Type: Digital/other
• Features: References; Tables;
• Pagination: 6p

Subject/Index Terms

• TRT Terms: Bayes' theorem; Crash data; Highway safety; Night visibility; Nighttime crashes; Road markings; Weather conditions; Wet weather
• Identifier Terms: Texas Department of Transportation
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01697294
• Record Type: Publication
• Report/Paper Numbers: 19-04199
• Files: TRIS, TRB, ATRI
• Created Date: Mar 1 2019 3:50PM