• Title/Summary/Keyword: Rear-end accidentPoisson regression analysisSevere accidentStruck vehicle

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Analysis of Rear-End Accidents at 4-legged Signalized Intersections in Cheongju (청주시 4지 신호교차로의 후미추돌사고 분석)

  • Park, Byeong-Ho;Park, Jeong-Sun
    • Journal of Korean Society of Transportation
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    • v.25 no.5
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    • pp.57-66
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    • 2007
  • This study deals with the rear-end accidents of 4-legged signalized intersections in Cheongju. The objectives are to analyze the characteristics of the accidents and to develop the models which explain the relations among the accidents, traffic volumes and geometric structures. In pursuing the above, the study uses the data 308 rear-end accidents occurred at the 106 intersections (2004). The main results analyzed are as follows. First, the rear-end accidents were analyzed to be serious. because the ratio of severe accidents is 77.6%. Second, the more accidents were occurred of in the night than the daytime and in the approaching sections of intersections. In particular, the accidents of large-size struck vehicles were analyzed to be more serious. Finally, the multiple and Poission regression models developed in this study are all analyzed to be statistically significant.