Browse > Article

Analysis of Effects from Traffic Safety Improvement on Roadways using C-G Method  

Lee, Dong-Min (한국교통연구원)
Kim, Do-Hun (한국교통연구원)
Song, Gi-Seop (행복중심복합도시건설청)
Publication Information
Journal of Korean Society of Transportation / v.29, no.3, 2011 , pp. 31-40 More about this Journal
Abstract
Generally, inappropriate driving conditions including geometric, traffic environmental, and driver psychological problems may be critical reasons of traffic accidents. Under this circumstance, various types of facilities have been installed to improve traffic safety by itself or as a set consisting of several other traffic safety facilities. In general, traffic accidents occur by several reasons combined rather than only a single reason, and thus the safety effect of the safety facilities cannot be simply analyzed with only a single improvement. For the study, traffic accident data on the roadway segments of interest are collected along with field survey data. For the analysis, various alternative analysis methods were evaluated in terms of assessing accident reduction from various types of traffic safety improvements. Among the alternative methods tested including simple before-and-after evaluation method, before-and-after evaluation yoked comparison, and Comparison Group (C-G) method, it was found that the C-G method is the most effective method for analyzing the traffic safety improvement effect. Adopting the C-G method, both single and multiple safety improvements were analyzed. The results from this study can potentially be applied to decide the best type of treatments to improve traffic safety as well as to measure the accident reduction effects from the treatments.
Keywords
Safety Improvement; Before and After Study; C-G Method; Traffic Accident; Roadway segment;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Persaud(2004), "Crash Reduction Following Installation of Centerline Rumble Strips on Rural Two-Lane Roads", Accident Analysis and Prevention, Vol.36, pp.1073-1079.   DOI   ScienceOn
2 Hauer, E., et.al.(2002), "The Empirical Bayes Method for Estimating Safety: A Tutorial", TRR 1784, Washington D.C.
3 Elvik, R.(1997), "Evaluations of Road Accident Blackspot Treatment: A Case of the Iron Law of Evaluation Studies", Accident Analysis and Prevention, Vol.29, No.2, pp.191-199.   DOI   ScienceOn
4 Hauer, E. (1997), "Observation before-after Studies in Road Safety", Pergamon/Elsevier Science Inc., Tarytown, New York.
5 도로교통공단, "교통사고 잦은 곳 기본개선 계획 및 효과분석".
6 삼성교통안전문화연구소(2004), "도로안전시설물의 사고감소 효과도 분석".
7 정도영(2008), "어린이보호구역 설치에 따른 교통사고 감소효과 분석", 서울시립대학교 석사학위 논문.
8 정국영(2008), "노면요철포장 설치에 따른 사고전환 효과분석", 한양대학교 석사학위 논문.
9 이동민․강재홍․성낙문․정봉조(2007), "C-G Method를 이용한 고속도로 노면요철 포장의 교통사고감소 효과분석", 한국도로학회지, 제9권 제2호, 한국도로학회, pp.77-87.
10 박민호․박규영․장일준․이수범(2006), "중앙분리대 설치에 따른 사고전환효과 분석", 대한교통학회지, 제24권 제2호, 대한교통학회, pp.113-124.
11 이수범․박규영(2000), "도로안전시설의 교통사고 감소효과 측정에 관한 연구", 대한토목학회 논문집, 제20권 제2-D호, 대한토목학회, pp.139-147.
12 김경석․강승림(2003), "중앙분리대의 사고감소효과 분석에 관한 연구", 대한교통학회지, 제21권 제2호, 대한교통학회, pp.45-60.
13 Griffin, L.I, R.j. Flowers.(1997), "A Discussion of Six Procedures for Evaluating Highway Safety Projects", FHWA, December 1997.