Proposal of automated performance testing tool for vital software in train control system

In accordance with the development of recent computer technology, the dependency of train control system on the computer software is being increased further, and accordingly, the testing for the safety and reliability of train control system software became more important. Hence, the safety assurance of the vital software running on the train control system is very critical task and yet, not many works have been done. While much efforts have been reported to improve electronic hardware's safety, not so much systematic approaches to evaluate software's safety. In this paper, we suggested an automated tool for performance testing in train control system, and presented its result of implementation. The testing items in the implemented tool had referred to the international standards in relation to the software for train control system, such as IEC 61508 and IEC 62279. In these international standards, 'performance testing' for train control system S/W has to be recommended highly.