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In this paper, the authors' research work is focused on modeling of railway transportation system's reliability and safety with respect to hazards. The paper begins with an introduction related to a literature review on system reliability and safety modeling and reliability models. A state-transition model was proposed. Defining states in terms of railway transportation system is a complex issue,...
The structure of cross-redundant is used to in railway signaling safety-critical system with the development of railway integration and automation. in this paper, a modeling method is studied for analyzing the reliability and safety of cross-redundant structure by the effects of maintenance, failure checking cover ratio and common cause failure based on Markov process. the failure rates of sub-system...
In many circumstances, the application of safety analysis tools may not give satisfactory results because the safety-related data are incomplete or there is a high level of uncertainty involved in the safety-related data. This paper presented a two-stage safety analysis model for railway level crossing surveillance systems by using fuzzy Petri nets, fault tree analysis and Markov model. An empirical...
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