RSSB HRA 방법을 활용한 정지신호 무시/오인사건(SPAD)에 대한 인간신뢰도 분석

초록

Most railway accidents are due to human error. Therefore, safety of railway systems dependant upon reliable task performance of railway staff. In order to efficiently manage reliable task performance ability of railway staff, by conducting human reliability analysis(HRA), it is possible that identifying and assessing human failure events in the framework of the probabilistic risk assessment(PRA) of the systems. The purpose of this study is to manage human error failure events and to calculate the diagnosis human error probabilities and execution human error probabilities, by performing human reliability analysis applied RSSB-HRA methods for Signal Passed AT Danger(SPAD) In this paper, using the RSSB-HRA method, human reliability analysis for possible causes of SPAD events was performed. As a result of analysis, Human Error Identification(HEI) and Human Error Probability(HEP) for each causes of SPAD were derived.