| Title |
A Study on Road Safety Evaluation Method for Improvement Project of Two-Lane Road |
| Authors |
신철호(Shin, Chul-Ho) ; 김낙석(Kim, Nakseok) |
| DOI |
https://doi.org/10.12652/Ksce.2019.39.1.0105 |
| Keywords |
2차로 시설개량;도로 안전성 평가;안전지수;전문가 안전성 평가 방법 Improvement project of two-lane road;Road safety evaluation;Safety index (SI);Expert safety evaluation method (ESEM) |
| Abstract |
Recently, the paradigm of road policy has been focused on user safety. Recently, the number of road facility improvement project has been continuously increased but the economic feasibility (B/C ratio) is insufficient. Therefore, it is necessary to select a reasonable road improvement project through accurate and objective analysis of the road safety evaluation. In this study, to develop a new road safety evaluation method, data were collected based on the current road safety evaluation method for 75 routes including national roads and provincial ones. Based on the collected data, problems were analyzed and utilized as the basic factors of the new road safety evaluation method. Therefore, in this study, traffic accidents were reflected as a general evaluation item by weighing to solve these problems, and the evaluation items were added from experiences and ideas of the local public officials. For each evaluation item, a reasonable weight was determined through AHP (Analytic Hierarchy Process) questionnaire evaluation with highway experts. In addition, the safety index was determined based on the evaluation criteria for each evaluation item. The criteria for evaluating the danger zone are determined by the overall safety index. Finally, the criteria for selection of road improvement projects based on the overall risk level were derived. |