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Traffic Accident Analysis of Link Sections Using Panel Data in the Case of Cheongju Arterial Roads

패널자료를 이용한 가로구간 교통사고분석 - 청주시 간선도로를 사례로 -

  • Kim, Jun-Young (Korea Institute of Construction Technology) ;
  • Na, Hee (Department of Urban Engineering, Chungbuk National University) ;
  • Park, Byung-Ho (Department of Urban Engineering, Chungbuk National University)
  • 김준용 (한국건설기술연구원) ;
  • 나희 (충북대학교 도시공학과) ;
  • 박병호 (충북대학교 도시공학과)
  • Received : 2011.08.19
  • Accepted : 2012.05.02
  • Published : 2012.06.30

Abstract

This study deals with the accident model using panel data which are composed of time series data of 2005 through 2007 and cross sectional data of link sections in Cheongju. Panel data are repeatedly collected over time from the same sample. The purpose of the study is to develop the traffic accident model using the above panel data. In pursuing the above, this study gives particular attentions to deriving the optimal models among various models including TSCSREG (Time Series Cross Section Regression). The main results are as follows. First, 8 panel data models which explained the various effects of accidents were developed. Second, $R^2$ values of fixed effect models were analyzed to be higher than those of random effect models. Finally, such the variables as the sum of the number of crosswalk on intersections and sum of the number of intersections were analyzed to be positive to the accidents.

Keywords

References

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