抄録
We present a new safety analysis method for railway signaling systems and introduce component fault occurrence probability vector, functional failure probability vector, correlation matrix between functional failures and component faults, mitigating matrix, and several other factors. By using these factors, we can estimate the risk of signalling systems, the effectiveness of safety measures, dangerous system failure probability and other related values. We also introduce a new automatic train control system and safety technologies, and evaluate the effectiveness of these technologies by calculating the elements of mitigating matrix.
