ABSTRACT
Signal system is widely used to improve the safety and efficiency of subway system, while signal failure of it may lead to a huge breakdown of subway capacity. Most signaling operation and maintenance team still use the outdated checklists while signal operation and maintenance is proved to be a more and more difficult task because the internal and external interactions. This paper proposes hybrid accident/incident causal model of bowtie and cybernetic control loop to guide the design of incident data model. After that, the database is demonstrated on Beijing subway line No. 5. Based on the analysis, statistical characteristics of incidents are concluded. The trend of these factors could help companies improve the performance of subway system and the process of this analysis give them a new manner to record and learn from incident data.
