How safe is safe enough? : a socio-technical view of low-cost level crossing safety

Wullems, Christian, Nikandros, George, & Nelson-Furnell, Peter (2013) How safe is safe enough? : a socio-technical view of low-cost level crossing safety. In Institution of Railway Signal Engineers Australasia AGM and Technical Meeting, 15/03/2013, Glenelg, South Australia.

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Low-cost level crossings are often criticized as being unsafe. Does a SIL (safety integrity level) rating make the railway crossing any safer? This paper discusses how a supporting argument might be made for low-cost level crossing warning devices with lower levels of safety integrity and issues such as risk tolerability and derivation of tolerable hazard rates for system-level hazards. As part of the design of such systems according to fail-safe principles, the paper considers the assumptions around the pre-defined safe states of existing warning devices and how human factors issues around such states can give rise to additional hazards.

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ID Code: 58375
Item Type: Conference Paper
Refereed: Yes
Keywords: Level Crossings, Low Cost, LCLCWD, Risk Tolerability, Tolerable Hazard Rates
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > INTERDISCIPLINARY ENGINEERING (091500) > Risk Engineering (excl. Earthquake Engineering) (091507)
Australian and New Zealand Standard Research Classification > COMMERCE MANAGEMENT TOURISM AND SERVICES (150000) > TRANSPORTATION AND FREIGHT SERVICES (150700) > Rail Transportation and Freight Services (150702)
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2013 (please consult the authors).
Deposited On: 18 Mar 2013 03:13
Last Modified: 03 Apr 2014 04:14

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