KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지

A study on Evaluation of Highway Intersection safety

교차로의 안전도 평가에 관한 연구

Sung, Nak-Moon;Oh, Ju-Taek;Oh, Jae-Hak
성낙문;오주택;오재학

  • Published : 2005.01.31

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Abstract

The objective evaluation of safety has to be guaranteed to conduct highway safety programs because safety funds need to be effectively used. The rate quality control method is frequently used with the advantage of interpreting the characteristics of the traffic accidents in statistical ways. There are, however, three limitations in the method. First, the selection of reference sites is a matter of judgement. As a result, even a same site can be evaluated differently, depending on who researchers are. Second, the number of reference sites may not be large enough to permit the accurate identification of hazardous sites in practice. Third, the method can not reflect the over-dispersion phenomena which often occur in traffic crashes. This research provides a new approach to overcome the three limitations of the rate quality control method. The results of analyses show that the new approach evaluates the sites appropriately. It can be also easily applied to the highway safety programs because the logic of the new method is not complicated.

교통안전사업을 수행하는데 있어서 도로의 안전도를 객관적으로 평가하는 것은 주어진 재원을 효율적으로 이용한다는 측면에서 매우 중요하다. 한계사고율법은 불확실성을 가지는 교통사고를 확률적으로 해석 할 수 있다 는 장점 때문에 자주 사용되어진다. 그러나 한계사고율법은 Reference sites의 선정과 관련하여 3 가지의 문제점이 있다. 첫째, Reference sites의 선정기준이 없어 같은 지점이 분석자에 따라 다르게 평가 될 수 있다는 것으로 개념적인 한계이다. 둘째, 신뢰성을 확보 할 수 있을 만큼의 Reference sites가 존재하지 않는 경우가 있다는 것으로 적용상의 한계이다. 셋째, 교통사고의 과분산 현상을 반영할 수 없다는 한계이다. 본 연구에서는 기존의 한계사고율법에 내제되어 있는 한계를 교통사고예측모형을 이용하여 합리적으로 극복하는 방법을 제시하였다. 관측된 자료를 이용하여 적용한 결과, 본 연구에서 정립된 방법이 통계학적인 관점에서 벗어나지 않는 것으로 나타났다. 또한 개발된 방법은 개념이 간단하여 교통안전사업에 쉽게 적용 될 수 있을 것으로 판단된다.

Keywords

References

  1. 건설교통부(2002) 사고잦은곳 개선사업 업무편람, pp. 19-26
  2. 남궁헌(2001) 신호교차로 교통사고예측모형의 개발 및 적용. 전남 대학교석사학위논문
  3. 성낙문(2002) 고속도로 인터체인지에서의 교통사고 예측모델의 개발. 대한교통학회 논문집 제 22권 제 4-D호 pp. 617-625
  4. 임윤택(1993) 도로특성이 교통사고 때 미치는 영향분석. 연세대학교 석사학위논문
  5. Belanger, C. (1994) Estimation of safety of four-leg unsignalized intersections. Transportation Research Record, Transportation Research Board, 1467, National Research Council, Washington D.C., pp. 23-29
  6. Bonneson, J. A. and McCoy, P. T. (1993) Estimation of safety at two-way stop controlled intersections on rural highways. Transportation Research Record, 1401, Transportation Research Board, National Research Council, Washington D.C., pp. 83-89
  7. Hauer, E. and Lovell, J. (1988) Estimation of safety at signalized intersection. Transportation Research Record, Transportation Research Board, 1185, National Research Council, Washington D.C., pp. 23-29
  8. Hauer E., and Persaud B. N. (1986) How to estimate the safety of rail highway grade crossings and the safety effects of warning devices. Transportation Research Record, 1114, Transportation Research Board, National Research Council, Washington D.C., pp. 131-139
  9. Hauer E. (1992) Empirical Bayes approach to the estimation of unsafety: the multivariate regression method. Accident Analysis and Prevention, Vol. 24, No 5, pp. 457-477 https://doi.org/10.1016/0001-4575(92)90056-O
  10. Hauer E. 1996. Identification of sites with promise. Transportation Research Record, 1542, Transportation Research Board, National Research Council, Washington D.C., pp. 54-60
  11. Higle, J. L. and Witkowski, J. M. (1988) Bayesian Identification of Hazardous Locations. Transportation Research Record, 1185. Transportation Research Board, National Research Council, Washington D.C., pp. 24-36
  12. Maher, M. J. and Summersgill, I. (1996) A comprehensive methodology for the fitting of predictive accident models. Accident Analysis and Prevention, Vol. 28, No 3, pp. 281-296 https://doi.org/10.1016/0001-4575(95)00023-2
  13. McCullagh, P. and Nelder, J. A. (1989) Generalized linear models. London: Chapman and Hall
  14. Persaud, B. and Dzbik, L. (1993) Accident prediction models for freeways. Transportation Research Record, 1401, Transportation Research Board, National Research Council, Washington D.C., pp. 55-60
  15. Persaud, B. and Nguyen, T. (1998) Disaggregate safety performance models for signalized intersections on Ontario provincial roads. Transportation Research Record, 1635, Transportation Research Board, National Research Council, Washington D.C. pp. 113-120
  16. Rice, J. A. (1997) Mathematical statistics and data analysis: 2nd edition Wadsworth, INC
  17. Stokes R. W. and Mutabazi M. I. (1996) Rate Quality Control Method of identifying hazardous road locations. Transportation Research Record, 1542, Transportation Research Board, National Research Council, Washington D.C., pp. 44-48
  18. Sung, N. (2000) Evaluation of Safety of Safety at Freeway Interchanges, Ph.D Thesis, Michgan State University, pp. 77-78
  19. Tarko, A. P., Sinha, K. C., and Farooq, O. (1996) Methodology for identifying highway safety problem areas. Transportation Research Record, 1542, Transportation Research Board, National Research Council, Washington D.C., pp. 49-53
  20. Vogt and Bared J. (1998) Accident models for two-lane rural segments and intersections. Transportation Research Record, 1635, Transportation Research Board, National Research Council, Washington D.C., pp. 18-29