Safety Assessment Methods of a Rail Transit Signal System

As a massive public traffic, the safety of rail transit system directly concerns the lives and properties of all the passengers. The signal system, playing a crucial role in ensuring operation safety of rail transit, must be evaluated to make sure its safe running. However, it lacks of the comparative research of safety assessment methods that are suitable for the key equipment of rail transit signal system. Based on the signal system of rail transit related research and safety assessment theory, several safety assessment methods, including fuzzy comprehensive method which was explored in the safety assessment of switches, have been analyzed in this paper so as to present the characteristics of these methods and applicable range and conditions.