Activity Number:
|
476
- Distracted Driving and Other Transportation Considerations
|
Type:
|
Contributed
|
Date/Time:
|
Wednesday, July 31, 2019 : 8:30 AM to 10:20 AM
|
Sponsor:
|
Transportation Statistics Interest Group
|
Abstract #304639
|
|
Title:
|
Safety Effects of Wet-Weather Pavement Markings
|
Author(s):
|
Eun Sug Park* and Paul J. Carlson and Adam Pike
|
Companies:
|
Texas A&M Transportation Institute and Road infrastructure, Inc. and Texas A&M Transportation Institute
|
Keywords:
|
Wet-weather pavement markings;
Before-after safety evaluation;
Empirical Bayes;
Full Bayes;
Wet-night crashes;
Dry-night crashes
|
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.
|
Authors who are presenting talks have a * after their name.