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Evaluating of Risk Order for Urban Road by User Cost Analysis  

Park, Jung-Ha (한국교통연구원 국가교통DB센터)
Park, Tae-Hoon (전남대학교 토목공학과)
Im, Jong-Moon (광양만권경제자유구역청 행정개발본부)
Park, Je-Jin (전남대학교 공업기술연구소)
Yoon, Pan (광주광역시청 교통정책연구실)
Ha, Tae-Jun (전남대학교 토목공학과)
Publication Information
Journal of Korean Society of Transportation / v.23, no.7, 2005 , pp. 77-86 More about this Journal
Abstract
Level of service(LOS) is a quantify measure describing operational conditions within a traffic stream, generally, in terms of such service measures as speed, travel time, freedom to measures, traffic interruptions, comfort and convenience. The LOS is leveled by highway facilities according to measure of effectiveness(MOE) and then used to evaluate performance capacity. The current evaluation of a urban road is performed by only a aspect of traffic operation without any concepts of safety. Therefore, this paper presents a method for evaluation of risk order for urban road with new MOE, user cost analysis, considering both smooth traffic operation(congestion) and traffic safety(accident). The user coat is included traffic accident cast by traffic safety and traffic congestion cost by traffic operation. First of all, a number of traffic accident and accident rate by highway geometric is inferred from urban road traffic accident prediction model (Poul Greibe(2001)) Secondly, a user cost is inferred as traffic accident cast and traffic congestion cost is putting together. Thirdly, a method for evaluation of a urban road is inferred by user cost analysis. Fourthly a accident rate by segment predict with traffic accidents and data related to the accidents in $1996{\sim}1998$ on 11 urban road segments, Gwang-Ju, predicted accident rate. Traffic accident cost predict using predicted accident rate, and, traffic congestion cost predict using predicted average traffic speed(KHCM). Fifthly, a risk order are presented by predicted user cost at each segment in urban roads. Finally, it si compared and evaluated that LOS of 11 urban road segments, Gwang-Ju, by only a aspect of traffic operation without any concepts of safety and risk order by a method for evaluation of urban road in this paper.
Keywords
간선도로;사고예측모형;사고비용;지체비용;사용자비용;도로위험순위;
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