Overall reliability index development for railway infrastructure and rolling stock with case study

摘要

Overall reliability index is an indicator to manifest the health level of an infrastructure. The introduction of this index can facilitate the maintenance optimization. Railway infrastructure is complex containing a plenty of constituent units and various measurement data. This paper discusses a general approach to combine these various data. A real railway case is presented to demonstrate the development of the reliability index. In this case, the overall reliability index is developed based on normal distribution and several indexes are merged by a competing model.