고속도로 터널 교통사고 발생 위치별 사고 영향요인 분석 Analysis of Influence Factors by Location of Highway Tunnel Traffic Accident Occurrence
pp.85-94
PURPOSES : In this study, the factors affecting the severity of traffic accidents in highway tunnel sections were analyzed. The main lines of the highway and tunnel sections were compared, and factors affecting the severity of accidents were derived for each tunnel section, such as the tunnel access zone and tunnel inner zone.
METHODS : An ordered probit model (OPM) was employed to estimate the factors affecting accident severity. The accident grade, which indicates the severity of highway traffic accidents, was set as the dependent variable. In addition, human, environmental, road condition, accident, and tunnel factors were collected and set as independent variables of the model. Marginal effects were examined to analyze how the derived influential factors affected the severity of each accident.
RESULTS : As a result of the OPM analysis, accident factors were found to be influential in increasing the seriousness of the accident in all sections. Environmental factors, road conditions, and accident factors were identified as the main influential factors in the tunnel access zone. In contrast, accident and tunnel factors in the tunnel inner zone were found to be the influencing factors. In particular, it was found that serious accidents (A, B) occurred in all sections when a rollover accident occurred.
CONCLUSIONS : This study confirmed that the influencing factors and the probability of accident occurrence differed between the tunnel access zone and inner zone. Most importantly, when the vehicle was overturned after the accident occurred, the results of the influencing factors were different. Therefore, the results can be used as a reference for establishing safety management strategies for tunnels or underground roads.
1. 서론
2. 선행연구 고찰
3. 연구수행방법
3.1. 교통사고 자료 수집 및 가공
3.2. 터널 교통사고 발생 위치별 사고 영향요인 분석
4. 분석결과
4.1. 고속도로 터널 교통사고 현황 분석
4.2. 고속도로 터널 구역별 사고 심각도 영향요인 분석
5. 결론
REFERENCES