SIGNAL+DRAHT | Ausgabe 03/2023
The probability of human error and failure rates in technical ATO systems
The introduction of ATO (Automatic Train Operation) in the railways is a current topic. While experience exists from automated metro systems, completely different and more complex tasks have to be carried out for railway systems. This particularly applies to the situation where the train driver is to be replaced with technical systems. Such problems have been investigated within the framework of the ATO-RISK project [1]. In this paper, the authors have compared the results of an investigation into human reliability, as determined using classical methods such as those according to Hinzen or RARA, with results that have been generated with the help of methods used to derive a safety integrity level (SIL) for technical systems....