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Estimation of Freeway Traffic Accident Rate using Traffic Volume and Trip Length  

Baek, Seung-Geol (한국도록공사 도로교통기술원)
Jang, Hyeon-Ho (서울지방경찰청 교통개선기획실)
Gang, Jeong-Gyu (한국도록공사 도로교통기술원)
Publication Information
Journal of Korean Society of Transportation / v.23, no.2, 2005 , pp. 95-106 More about this Journal
Abstract
Road accidents are considered as the result of a complex interplay between road, vehicle, environments, and human factors. Little study, however, has been carried out on the attributes of human factor compared to the road geometric conditions and traffic conditions. The previous researches focused on mainly both traffic and geometric conditions on specific location. Therefore, it's hard to explain phenomenon of the high traffic accident rates where road and traffic conditions are good. Because of these reasons, accident analysis has contributed on geometric improvement and has not contributed on traffic management such as selection of attention section, driver napping alert, etc. The freeway incident management is also associated with reliable prediction of incident occurrences on freeway sections. This paper presents a method for estimating the effect of trip length on freeway accident rate. A PAR (Potential Accident Ratio), the new concept of accident analysis, considering TLFDs (Trip Length Frequency Distributions) is suggested in this paper. This approach can help to strengthen freeway management and to reduce the likelihood of accidents.
Keywords
고속도로 교통사고;잠재사고배율(PAR);TLFD;교통량;심리적${\cdot}$생리적 운전상태;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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