DOI QR코드

DOI QR Code

연립방정식을 이용한 운전유형별 회전교차로 사고모형

Simultaneous Equation Models for Evaluating Roundabout Accidents According to Different Driving Types

  • Kim, Kyung Hwan (Department of Urban Engineering, Chungbuk National University) ;
  • Park, Byung Ho (Department of Urban Engineering, Chungbuk National University)
  • 투고 : 2012.01.25
  • 심사 : 2012.10.17
  • 발행 : 2012.10.31

초록

이 연구는 회전교차로의 교통사고를 다루고 있다. 연구의 목적은 연립방정식을 이용한 회전교차로의 운전유형별 교통사고모형을 구축하는데 있다. 이를 위해 이 연구는 국내 회전교차로 39개소에서 발생한 148건의 사고자료와 통계 프로그램인 SPSS 17.0을 이용하였다. 또한 사고모형은 2SLS(2단계 최소자승) 추정법을 이용하여 구축하였다. 주요 결과는 다음과 같다. 첫째, 사고건수와 EPDO는 쌍방적 관계를 갖는 것으로 평가되었다. 둘째, 운전유형별로 개발된 6개의 연립방정식은 통계적으로 유의한 것으로 분석되었다. 셋째, 개발된 모형은 공통변수와 특정변수를 사용하여 비교 분석되었다. 마지막으로 독립변수에는 ADT, 상충비, 중차량 비율, 회전차로 폭, 회전차로 수, 접근로 차로폭, 접근로 평균 차로 수, 주차시설 유무 및 정류장 유무가 채택되었다.

This study dealt with traffic accidents occurring within roundabouts. The objective was to develop roundabout accident models for different driving types by using simultaneous equations. In pursuing the above, this study used a statistical program SPSS 17.0 to accommodate data from 148 accidents occurred within 39 roundabouts of Korea. In addition, the 2SLS(2 stage least square) estimation method was adopted to calibrate the models. The main results are as follows. First, both the number of accidents and the EPDO were evaluated to have bilateral relationships. Second, all 6 different simultaneous equation models according to driving types were found to be statistically significant. Third, the developed models were compared to each other with respect to either common or specific variables. Finally, variables such as ADT, conflicting rate, heavy vehicle ratio, circulatory roadway width, number of circulatory roadway lane, approach lane width, average approach lanes, parking places, and bus stops were selected as independent variables for the models.

키워드

참고문헌

  1. Han S. S., Kim K. H., Park B. H. (2011), Accident Models of Circular Intersections by Type in Korea, J. Korea Soc. Road Eng., Vol.13, No.3, pp.103- 110.
  2. Hong E. J. (2010), A Study on Helping Activities of Mature and Senior Age Group and Their Generativity: Use of Simultaneous Equation Model, J. Korean Gerontological Soc., Vol.30, No.2, pp.515-534.
  3. Kim K. H., Park B. H. (2010), Developing the Traffic Accident Models of Arterial Link Sections by Driving Type, J. Korean Soc. Saf., Vol.25, No.6, Korean Society of Safety, pp.197-202.
  4. Kim K. M., Kim J. H. (2010), Forecasting Seoul Office Market Dynamics using a Simultaneous Equation System, J. Korea Planners Association, Vol.45, No.7, pp.21-29.
  5. Park B. H., Han S. W., Kim T. Y., Kim W. H. (2008b), Traffic Accident Models of Cheongju Four-Legged Signalized Intersections by Accident Type, J. Korean Soc. Transp., Vol.26, No.5, Korean Society of Transportation, pp.153-162.
  6. Park B. H., Yoo D. S., Yang J. M., Lee Y. M. (2008a), Analysis of Accident Characteristics and Development of Accident Models in the Signalized Intersections of Cheongju and Cheongwon, J. Korean Soc. Transp., Vol.26, No.2, Korean Society of Transportation, pp.35-46.
  7. Saccomanno F. F., Cunto F., Guido G., Vitale A. (2008), Comparing Safety at Signalized Intersections and Roundabouts using Simulated Rear End Conflicts, TRB 2008 Annual Meeting CD-ROM 08-2078, pp.90-95.

피인용 문헌

  1. Driving Satisfaction and Safety Assessment for Roundabout vol.34, pp.1, 2014, https://doi.org/10.12652/Ksce.2014.34.1.0223