Risk Assessment for the Level-Crossing Accidents in the Korea Railway

초록

Generally a road vehicle's wrong entry into level crossing gives rise to the possibility of collision or contact with a train and the severity of casualty is determined by the impact energy which is the multiplication of the velocity and the mass. In this paper, the hazard analysis procedure and the risk evaluation models developed for the level-crossing accidents in Korea railway will be introduced. The hazardous events and the hazardous factors are identified by the review of the accident history and engineering interpretation of the accident behavior. A probability for the hazardous events which is based on the accident appearance scenario will be evaluated by using the FTA technique. In the severity estimation, the number of casualty for the road vehicle drivers and the train passengers are converted into an equivalent fatality. Finally, these risk assessment results will contribute to the identification of safety requirements and the selection of safety measures for eliminating hazards or reducing risk of L/C accidents.