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Quantitative Analysis of Safety Improvement on Smart Roads  

Chang, Hyun-Ho (서울대학교 환경대학원)
Baek, Seung-Kirl (한국도로공사 도로교통연구원 교통연구실)
Oh, Sung-Ho (국토연구원 국토인프라GIS연구본부)
Kim, Ho-Jeung (국토연구원)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.10, no.4, 2011 , pp. 44-54 More about this Journal
Abstract
Intelligent transport services on smart roads tend to have a problem at the stage of benefit-cost analysis that can not secure economic feasibility of the new services which increase early investment cost on building its infrastructure. It is expected that the number of road accidents, 'Incident/Accident', will decline through various safety services using intelligent safety facilities, intelligent transport management and so on, and that traffic congestion will also decrease. The effect of traffic congestion reduction could be the benefit by safety improvement, however current investment-analysis process in Korea does not appropriate it as a benefit. This study estimated road blocking time with 'Incident/Accident' classification and highway accident data of past three years. It also developed a generalized model by a regression analysis with a microscopical simulation. Furthermore, it suggested necessary units on quantitative analysis in order to make the developed model applicable to investment evaluation. As a result of applying the developed model to Smart-Highway Project, it showed that total safety improvement benefit is about 139 billion dollars over 30 years when it is supposed that accident decreasing rate by smart safety facilities is 10%.
Keywords
Incident; delay; smart roads; safety; feasibility study;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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