철도건널목 사고 위험도-발생빈도 평가모델 개발

초록

In this study, a risk-appearance frequency evaluation model for railway level-crossing accidents is developed with the frequency estimation based on the accident history. It follows the worldwide common safety management approach and reflects the operation conditions and accident properties of the domestic railway system. The risk- appearance frequency evaluation process contains a development of accident scenarios by defining the system configurations and functions, and a frequency estimation of hazardous events based on the accident history. The developed model is verified with the accident history during 5 years(‘03-‘07) for 3 hazardous events : ‘Being trapped in level- crossing(H1)’, ‘Crossing during warning signal(H2)’ and ‘Breaking through/detouring the barrier(H3)’. This risk- appearance frequency evaluation model will be combined with a consequence evaluation model so as to offer full risk assessment for the railway accident. The accident risk assessment will contribute to improving the safety management of the railway system.

키워드