Study Details
Study Title: Safety Effects of Wet-Weather Pavement Markings
Authors: Park et al.
Publication Date:JAN, 2019
Abstract: 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.
Study Citation: Park, E. S., P. J. Carlson, and A. Pike. "Safety Effects of Wet-Weather Pavement Markings". Accident Analysis and Prevention, Vol. 133, (2019).
Related Citations: Park, E. S., P. J. Carlson, and A. Pike. "Safety Effects of Wet-Weather Pavement Markings". Presented at the 98th Annual Meeting of the Transportation Research Board, Paper No. 19-04199, Extended abstract only, Washington, D.C., (2019).
CMFs Associated With This Study
Category: Delineation
Countermeasure: Upgrade existing markings to wet-reflective pavement markings
CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
---|---|---|---|---|---|---|
0.72 | 28 | Wet road | All | Not specified | Not specified |
0.926 | 7.4 | Dry weather | All | Not specified | Not specified |
0.466 | 53.4 | Wet road | K,A,B,C | Not specified | Not specified |
0.836 | 16.4 | Dry weather | K,A,B,C | Not specified | Not specified |
0.746 | 25.4 | Run off road,Wet road | All | Not specified | Not specified |
0.88 | 12 | Dry weather,Run off road | All | Not specified | Not specified |