Incorporating Human Reliability Analysis to enhance Maintenance Audits: The Case of Rail Bogie Maintenance



Published Nov 17, 2020
Sarbjeet Singh Arnab Majumdar Miltos Kyriakidis


Human errors occurring during railway maintenance activities can significantly reduce the availability of equipment. Identification of potential human errors, their causes and prediction of the associated probabilities are important stages in order to manage such errors. This paper investigates the probability of human error during the maintenance of railway bogies. A case study examines technicians performing maintenance on the disc brake assembly unit, wheel set, and bogie frame under various error producing conditions in a railway maintenance workshop in Luleå, Sweden. The Human Error Assessment and Reduction Technique (HEART) is employed to determine the probability of human error occurring during each of the maintenance tasks, while fault tree analysis is used to define the potential errors throughout the maintenance process. The probability of a technician committing an error during the maintenance of the disc brake assembly, wheel set, and bogie frame is found to be 0.20, 0.039 and 0.021 respectively, with the human error probability (HEP) for the entire bogie 0.24. Time pressure, ability to detect and perceive problems, over-riding information, the need to make decisions and mismatches between the operator and designer’s model turn out to be major contributors to human error. These findings can help maintenance management personnel to better understand the error producing conditions that may lead to errors and in turn serve as an input to modify policies and guidelines for railway maintenance tasks.

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Human error, maintenance error probability, HEART

Andersen, T. (1999). Human reliability and railway safety. In Proceedings of the 16th European Safety, Reliability, and Data Association (ESREDA) Seminar on Safety and Reliability in Transport (pp. 1-12).
Accident/Incident Tool (2005). “Federal Railroad Administration (FRA) Office of Safety”, Federal Railroad Administration, Washington, D.C.
Dhillon, B. S., & Singh, C. (1981). Engineering reliability: new techniques and applications (No. 04; TS173, D4.). New York: Wiley.
Dhillon, B. S. (1999). Design reliability: fundamentals and applications. CRC press.
Dhillon, B. S., & Liu, Y. (2006). Human error in maintenance: a review. Journal of quality in maintenance engineering, 12(1), 21-36.
Dhillon, B. S., & Liu, Y. (2006). Human error in maintenance: a review. Journal of quality in maintenance engineering, 12(1), 21-36.
Dhillon, B. S. (2013). Human reliability: with human factors. Elsevier.
Dhillon, B. S. (2007). Human reliability and error in transportation systems. Springer Science & Business Media.
Editorial: Human Error Derails New Metro (2005). The Nation, Newspaper, Bangkok, Thailand.
Grozdanović, M., & Stojiljković, E. (2006). Framework for human error quantification. Facta universitatisseries: Philosophy, Sociology and Psychology, 5(1), 131-144.
HSE (2000). Improving maintenance, a guide to reducing human error. 1-61, ISBN 978 0 7176 1818 7
Hollnagel, E. (1998). Cognitive reliability and error analysis method (CREAM). Elsevier.
Humphreys, P.C. (1995). Human Reliability Assessor’s Guide., Human Factors in Reliability Group, SRD Association.)
Hall, S. (1997). “Railway Accidents”, Ian Allan Publishing, Shepperton, U.K.
Hammerl, M., & Vanderhaegen, F. (2012). Human factors in the railway system safety analysis process. Rail Human Factors Around the World: Impacts on and of People for Successful Rail Operations, Taylor & Francis, 73-84.
Kirwan, B. (1994). A guide to practical human reliability assessment. CRC press.
Kim, J. W., & Jung, W. (2003). A taxonomy of performance influencing factors for human reliability analysis of emergency tasks. Journal of Loss Prevention in the Process Industries, 16(6), 479-495.
MAURINO, D. E. (1998). ICAO supports proactive approach to managing human factors issues related to advanced technology. ICAO Journal.
Mears, P. (1995). Quality improvement tools & techniques. McGraw-Hill Trade. Rail Safety and Standards Board (2012) Railway Action Reliability Assessment User Manual – A Technique for the Quantification of Human Error in the Rail Industry, London, UK.
Branch, R. A. I. (2007). Progress Report: Derailment at Grayrigg. Cumbria, Department of Transport.
Reason, J. (2000). Cognitive Engineering in Aviation Domain. Lawrence Erlbaum Associates, Mahwah, NJ, 72, 102-7.
Reason, J., & Hobbs, A. (2017). Managing maintenance error: a practical guide. CRC Press.
Report No. DOT/FRA/RRS-22, (2003). “Federal Railroad Administration (FRA) Guide for Preparing Accident/Incident Reports”, FRA Office of Safety, Washington, D.C.
RSSB. (2012). Railway Action Reliability Assessment user manual - A technique for the quantification of human error in the rail industry. London, UK.
Singh, S., Kumar, R., Barabadi, A., & Kumar, S. (2014). Human error quantification of railway maintenance tasks of disc brake unit. In Proceedings of the World Congress on Engineering (Vol. 2).
Singh, S., & Kumar, R. (2015). Evaluation of human error probability of disc brake unit assembly and wheel set maintenance of railway bogie. Procedia Manufacturing, 3, 3041-3048.
Shapero, A. (1960). Human engineering testing and malfunction data collection in weapon system test programs. Wright Air Development Division, Air Research and Development Command, United States Air Force.
Transportation Safety Board Investigation Report (2001). “Transportation Safety Board”, Department of Transportation, Ottawa, Canada.
Williams, H. L. (1958). Reliability evaluation of the human component in man-machine systems. Electrical Manufacturing, 61(4).
Williams, J. C. (1988, June). A data-based method for assessing and reducing human error to improve operational performance. In Human Factors and Power Plants, 1988., Conference Record for 1988 IEEE Fourth Conference on (pp. 436-450). IEEE.
Wilson, J. R., Farrington-Darby, T., Cox, G., Bye, R., & Hockey, G. R. J. (2007). The railway as a sociotechnical system: human factors at the heart of successful rail engineering. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 221(1), 101-115.
Whittingham, R. (2004). The blame machine: Why human error causes accidents. Routledge.
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