Browse > Article

A Risk Assessment Approach to Safety Management of Electric Railway Facilities  

Jang, Yoon-Suk (교통안전공단 철도안전본부)
Choi, Kyu-Hyoung (서울산업대학 철도전기신호공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.5, 2009 , pp. 960-967 More about this Journal
Abstract
Power supply system of electric railway has a diversity of safety problems since it should supply high electric power to the trains moving high speed with a lot of passengers on board. This paper provides a risk assessment approach to safety management of the electric railway facilities. Construction of database from field accident information, risk assessment and management of the risk are carried out systematically to ensure the safety. The risk assessment includes hazard identification, cause analysis by FTA(Fault Tree Analysis), consequence analysis by EVA(Event Tree Analysis), and loss analysis. In terms of the severity and the probability of the accidents deduced by these analyses, the risk of the accidents is assessed by using a risk matrix designed for electric railway facilities. Based on the risk assessment, possible risk mitigation options are identified and evaluated by analyzing their impact on the risk reduction and their cost benefit ratio. The long-term safety of the electric railway facilities can be ensured by renewal of the risk assessment and the risk mitigation option analysis with continuous accident database update. The proposed approach is applied to the electric railway facilities of Korean railway based on the accident data from 2002 to 2008.
Keywords
Electric Railway Facilities; Risk Assessment; Safety Management; Risk Matrix;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 H. Zerkani, R. N. Dulomo, V. Ho, 'Bechmarking of the Risk Management Indices of the Railway Industry', 6th International Conference on Probabilistic Safety Assessment and Management(PSAM6), San Juan USA, 23-28 June 2002
2 Lloyd's Register, ESM (Engineering Safety Management), 2008
3 S. Gunderson, 'A Review of Organizational Factors and Maturity Measures for System Safety Analysis', Systems Engineering, Vol. 8, pp. 234-244, 2005   DOI   ScienceOn
4 H. Fukuda, 'A Study on Incident Analysis Method for Railway Safety Management', Quarterly Report of RTRI, Vol. 43, no.2, 2002, pp.83-86   DOI   ScienceOn
5 IEC Standard, 'IEC 61508 1-7 Functional safety of electrical/electronic/programmable electronic safety-related systems', Geneva, 2000
6 IEC 62278, 'Railway Applications Specification and Demonstration of Reliability, Availability, Maintainability and Safety(RAMS)', IEC, 2002
7 N. P. Hoj, W. Kroger, 'Risk analyses of transportation on road and railway from a European Perspective', Safety Science, Vol. 40, pp. 337-357, 2002   DOI   ScienceOn
8 N. B. Johansen, S. Sorenson, C. Jacobson, O. F. Adeler, A. Breinholt, 'Risk Assessment of Sewer Systems', NOVATECH Session 4.3, pp. 925-932, 2007
9 장윤석, 최규형, '위험도 평가 기반의 전철/전력분야 안전확보방안에 관한 연구', 2008년도 한국철도학회 추계학술대회논문집, pp.275-280, 2008   과학기술학회마을
10 D. Diamantidis, F. Zuccarelli, A. Westhauser, 'Safety of Long Railway Tunnels', Reliability Engineering and System Safety, Vol. 67, pp. 135-145, 2000   DOI   ScienceOn
11 M.H.C.Everdij, H.A.P.Blom and B.Kirwan, 'Developent of a structured database of safety methods', 8the International Conference on Probabilistic Safety Assessment and Management(PSAM8), New Orleans, USA, May 2006
12 D. Elms, 'Rail safety', Reliability Engineering and Systems Safety, Vol. 74, 2004, pp.291-297   DOI   ScienceOn
13 L. J. Wain 'Risk Assessment and comparisons :an Introduction', Science, Vol. 236, pp. 267-270, 1987   DOI   PUBMED
14 US Department of Defense, 'MIL-STD-882D Standard Practice for System Safety', Washington DC, 2000
15 A. G. Hessami, 'Risk Management: A Systems Paradigm', Systems Engineering, Vol.2, pp.156-167, 1999   DOI   ScienceOn
16 J. Beugin, 'A SIL Quantification Approach based on an Operating Situation Model for Safety Evaluation in Complex Guided Transportation Systems', Reliability Engineering and System Safety, Vol. 92, pp.1686-1700, 2007   DOI   ScienceOn
17 W.F.Kenney, 'Process Risk Management systems', VCH Publishers, NJ, 1993
18 MIL-STD-2155, 'Failure Reporting, Analysis and Corrective Action System', USA Department of Defense, 1985
19 F. Guenab, J. L. Boulanger, W. Schon, 'Safety of Railway Control System : A Preliminary Risk Analysis Approach', IEEE International Conference on Industrial Engineering and Engineering Management, Singapore, 2008   DOI
20 한국철도공사, '전철전력분야 장애 개황', 한국철도공사, 2002-2008
21 K. D. Pham, R. S. Thomas, W. E. Stinger, 'Operational and Safety Considerations in Designing a Light Rail DC Traction Electrification System', Proceedings of 2003 IEEE/ASME Joint Rail Conference, April 22-24, Chicago USA, 2003
22 D. Vose, 'Risk analysis: a quantitative guide', 2nd ed., Wiley, NY, 2000
23 Railtrack Yellow Book Issue 4, 'Engineering Safety Management : Fundamentals and Guidance', Issue 3, Railtrack, 2007