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Contribution à l'évaluation de la sécurité des systèmes complexes de transport guidé

Abstract : A guided transportation system is a complex system, which integrates multiple interacting subsystems that ensure a safe transfer of passengers. Such safety means are distributed throughout the onboard and trackside subsystems, in order to avoid risky situations and potentially catastrophic accidents. The level of safety must be assessed to prove that all these safety means are sufficient. This implies evaluating the safety of the overall system. However, faced with the complexity of such systems, assessing the safety of guided transportation systems is a thorny question.

In this research, an approach to risk evaluation of the entire system is proposed using the probabilistic Safety Integrity Level (SIL) requirements. The standardized SIL concept allows the safety requirements of each safety subsystem to be specified. Our approach is based both on the operating situation concept and on biased Monte Carlo simulation (MCS) allowing the complexity of the dependencies between rare failure events to be taken into consideration. The proposed operating situation concept is developed to deal with the complexity of guided transportation systems and to analyze the evolution of the system. MCS make it possible to perform risk profile evaluation based on the formalization of the system safety conditions according to the operating situation model. The sample implementation is presented and examined in term of the safety results.
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https://tel.archives-ouvertes.fr/tel-00132452
Contributor : Julie Beugin <>
Submitted on : Wednesday, February 21, 2007 - 3:09:59 PM
Last modification on : Friday, November 13, 2020 - 8:44:11 AM
Long-term archiving on: : Friday, November 25, 2016 - 2:31:08 PM

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  • HAL Id : tel-00132452, version 1

Citation

Julie Beugin. Contribution à l'évaluation de la sécurité des systèmes complexes de transport guidé. Automatique / Robotique. Université de Valenciennes et du Hainaut-Cambresis, 2006. Français. ⟨tel-00132452⟩

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