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Communication dans un congrès Année : 2023

New onboard train integrity and train length determination: what are the safety requirements?

Résumé

In the European Train Control System level 3, using on-board control-command systems for the train integrity monitoring and length determination functionalities transfer the train operation safety responsibility from the infrastructure managers to the railway operators. To implement these safety-critical functions, quantitative and qualitative safety requirements shall be specified as stipulated in the railway safety European standards and regulations. These functions must fulfil safety integrity level SIL 4 requirements at the system level, independently from trackside infrastructure. The contribution of this paper consists in proposing a methodology to determine the safety targets of both functions in terms of Tolerable Hazard Rates (THR). The obtained THRs are then apportioned among the safety-related functions to specify the quantitative safety requirements for every functional part.
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Dates et versions

hal-04483825, version 1 (10-03-2024)

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Insaf Sassi, El-Miloudi El-Koursi, Salvatore Danilo Iovino, Nicola Ricevuto. New onboard train integrity and train length determination: what are the safety requirements?. Transport Research Arena (TRA) Conference, Europe, 2023, Lisbone, France. pp.1443 - 1450, ⟨10.1016/j.trpro.2023.11.609⟩. ⟨hal-04483825⟩
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