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