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Development and validation of Accident Modification Factors of Two-Lane Rural Roadways  

Kim, Eung-Cheol (인천대학교 건설환경공학과)
Choe, Eun-Jin (인천대학교 토목환경공학과)
Lee, Dong-Min (한국교통연구원 첨단교통운영연구센터)
Kim, Do-Hun (한국교통연구원 도로교통안전연구본부)
Publication Information
Journal of Korean Society of Transportation / v.28, no.3, 2010 , pp. 131-143 More about this Journal
Abstract
This study has aimed to develop accident modification factor(AMF) for rural two-lane roadway segments. Accident Modification Factor is a coefficient to assess roadway safety as reflecting characteristics of homogeneous roadway. It estimates accident frequency of roadway segments with developed base model and exposure. We found on items of such factors as crosswalk, driveway density, topography characteristic, land use and median through statistical models and literature review. To develop accident modification factors, we used statistical model methods and analyses of applicability and expert judgement method were practiced to validate it. Although expert judgement for land use item was questionable, most items were rated acceptable. Result of comparative analysis revealed crash frequencies of IHSDM and KHSEM were most similar with actual. However, accident distribution of KHSEM was more proper than IHSDM. Also overall estimated values of RSDS were found to be overestimated.
Keywords
Accident Modification Factor(AMF); Two-lane Rural Highway; Road Design Safety Assessment; Interactive Highway Safety Design Model(IHSDM); Roadway Safety Design Synthesis(RSDS);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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