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A Study on the Hazard Identification and Risk Mitigation for ATSRX Using Hazard and Operability Study  

LEE Jun-Ho (한국철도기술연구원, 전기신호연구본부)
LEE Kang-Mi (한국철도기술연구원, 전기신호연구본부)
KIM Yong-Kyu (한국철도기술연구원, 전기신호연구본부)
SHIN Ducko (한국철도기술연구원, 전기신호연구본부)
Publication Information
Journal of the Korean Society for Railway / v.8, no.6, 2005 , pp. 533-538 More about this Journal
Abstract
In this paper we identity the hazard using HAZOP study for ATSRX which is a subsystem of the ATP system, and we study a safety management method for the mitigation of the risk to the acceptable level. ATSRX is a device that make a train which has a ATP system operate in ATS line. For this ATSRX send a induction signal with ATS system to vehicle controller. Thus ATSRX can be said a safety equipment that makes a train operate safely. In order to identify the hazard for the internal faults in ATSRX system, we employ HAZOP study method which is recommended as hazard identification in IEC 62278, RAMS requirements in railway signal, and also it provide the detail activity in IEC 61882. Thus, in this paper we perform HAZOP study based on ATSRX related standards and using the assessment of the identified hazard we study a method to guarantee the system safety through the change of the design to mitigate the risk to the acceptable level.
Keywords
RAMS(Reliability, Availability, Maintainability and Safety); ATP(Automatic Train Protection); ATS(Automatic Train Stop); HAZOP Study(Hazard and Operability Study);
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  • Reference
1 IEC61882 (2001), 'Hazard and operability studies(HAZOP Studies) - Application guide'
2 RailTrack, UK (2000), 'Engineering Safety Management' Issue3, Yellow Book 3
3 한국철도기술연구원 (2002), '철도신호제품의 안전성검증을 위한 실행체계 구축방안에 관한 연구'
4 IEC62278 (2002), 'Railway applications-Specification and demonstration of RAMS', pp.59-65
5 IEC 60812 (1985), 'Failure Mode Effect analysis'
6 철도청 (2003), '차상신호(ATP)시스템 도입을 위한 제안요청서'
7 유경제어 (2004), 'Specification of the ATSRX functionality requirements'
8 UIC (2000), 'ETRMS/ETCS-Class1 System Requirements Specification'
9 한국철도기술연구원 (2005), '철도청 차상신호(ATP)시스템 구축사업의 1단계 종합안전대책기술서(Safety Case)'
10 IEC61508 (1998), 'Functional safety of electrical/electronic /programmable electronic safety-related systems'