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http://dx.doi.org/10.12652/Ksce.2017.37.5.0815

Effectiveness Analysis and Application of Phosphorescent Pavement Markings for Improving Visibility  

Yi, Yongju (Ajou University)
Lee, Kyujin (Ajou University)
Kim, Sangtae (Pyunghwa Engineering Consultant LTD)
Choi, Keechoo (Ajou University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.37, no.5, 2017 , pp. 815-825 More about this Journal
Abstract
Visibility of lane marking is impaired at night or in the rain, which thereby threatens traffic safety. Recently, various studies and technologies have been developed to improve lane marking visibility, such as the extension of lane marking life expectancy (up to 1.5 times), improvement of lane marking equipment productivity, improvement of lane marking visibility by applying phosphorescent material mixed paint. Cost-benefit analysis was performed with considering various benefit items that can be expected. About 45% of traffic accidents would be prevented by improving lane marking visibility. Additionally, accident reduction benefit and traffic congestion reduction benefit were calculated as much as 246 billion KRW per year and 12 billion KRW per year, respectively, by reducing repaint cycle due to enhanced durability. 45 billion KRW per year is expected to reduced with improved lane detection performance of autonomous vehicle. Meanwhile, total increased cost when introducing phosphorescent material mixed paint to 91,195km of nationwide road is identified as 1922 billion KRW per year. However, economic feasibility could not be secured with 0.16 of cost-benefit ratio when applied to the road network as a whole. In case of "Accident Hot Spot" analyzing section window (400m), one or more fatality or two or more injured (one or more injured in case of less than 2 lanes per direction) per year were caused by pavement marking related accident, economic feasibility was secured. In detail, 3.91 of cost-benefit ratio is estimated with comparison of the installation cost for 5,697 of accident hot spot and accident reduction benefit. Some limitations and future research agenda have also been discussed.
Keywords
Pavent marking; Phosphorescent lane paint; Lane marking; Visibility; Accident hot spot;
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Times Cited By KSCI : 2  (Citation Analysis)
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