Risk Evaluation Method for Improvement of Railway Signalling Systems

High-level safety is essential for railway signaling systems, and so various measures are taken to prevent failures susceptible to lead to accidents based on the fail-safe concept, given that the type of accident cause by such a system failure is potentially serious. An International Standard, stipulating levels of reliability, availability, maintainability, and safety for railway signaling systems, has recently been introduced. In this kind of system, safety is of utmost importance. However, considering the current requirement for high-level of availability, this paper presents a case study on a risk evaluation, based on costs/unit of time, which can be used to represent not only safety factors but also availability.

Language

  • English

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Filing Info

  • Accession Number: 01329223
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 16 2011 1:41PM