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A Study on Safety Assessment of CTC/EI Interface  

SHIN Seok-kyun (㈜마이크로트랙 RAMS 사업부)
LEE Key-seo (광운대학교 정보제어공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.54, no.7, 2005 , pp. 309-316 More about this Journal
Abstract
In this paper we analyzed a dangerous failure and a safety requirement based on HIA (Hazard Identification and Analysis) of an interface model between CTC (Centralized Traffic Control) system and El (Interlocking) system, and assigned SU (Safety Integrity Level) by way of an risk estimation of the interface, which employed PHA (Preliminary Hazard Analysis) for the interface of the track control system, being managed as separated system between the centralized traffic control system and the interlocking system, An estimation which satisfies a safety reference of the international standard has been achieved through a quantification of the system failure rate and the dangerous failure rate of the interface model.
Keywords
Modelling; Safety; Computerized Control System; Hazard; Redundancy; ATC;
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  • Reference
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