By Topic

A flexible and concise framework for hazard quantification

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Mahboob, Q. ; Railway Signalling & Transp. Safety Technol. Dept., Tech. Univ. Dresden, Dresden, Germany ; Kunze, M. ; Trinckauf, J. ; Maschek, U.

In this paper we propose a general framework to compute limiting tolerable hazard rate (LTHR) in complex railway system. The driver machine interface (DMI) is a safety critical component of European Train Control System (ETCS). Functional failure of the DMI can affect the role of the ETCS and can lead to adverse impacts. Therefore, it is important to carry out a careful functional safety analysis of the DMI. The quantification of the LTHR of a DMI is a complex task due to a number of dependencies and uncertainties among event scenarios leading to adverse consequences. Failing to consider dependencies and uncertainties will lead to over or under estimation of the functional safety of a DMI. It motivates the investigation of using Bayesian Networks (BNs) for functional safety analysis of DMI. BNs are acyclic probabilistic graphical model and offer concise representation of dependencies and uncertainties among random variables. The BNs will be used to quantify risk reduction parameters, which will be utilized to quantify LTHR using a mathematical model.

Published in:

Quality, Reliability, Risk, Maintenance, and Safety Engineering (ICQR2MSE), 2012 International Conference on

Date of Conference:

15-18 June 2012