Abstract
The railways have a quite long modelling history, covering many technical aspects from infrastructure to rolling stock, train movement, maintenance, etc. These models are mostly separate and operated independently by various stakeholders and with diverse objectives. This article presents some of the various digital modelling activities, including formal ones, that are undertaken by the railway industry, for design, development, validation, qualification, and exploitation. It also introduces trends toward regrouping models to obtain more significant results together with a larger scope, prefiguring digital twins.
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Notes
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The combination of continuous and discrete models to associate a logic controller to the physics of a controlled system described with differential equations.
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Call for Project 2R-OC-IP2-01-2020.
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For example, respectively functional vs safety, seconds for slipping vs thousands years for rail maintenance, and development vs certification.
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SNCF test bench BATIR enabling the real-time functional simulation, including HiL, of full high speed trains to validate embedded software.
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“Bring in the disruptors to drive rail innovation”, Stuart Calvert, Digital Rail, TransCityRail North conference, London, 06/10/2017.
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H2020 Call SU-INFRA-01-2020: Prevention, detection, response and mitigation of combined physical and cyber security threats to critical infrastructure in Europe.
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Lecomte, T. (2021). Digital Modelling in the Railways. In: Margaria, T., Steffen, B. (eds) Leveraging Applications of Formal Methods, Verification and Validation: Tools and Trends. ISoLA 2020. Lecture Notes in Computer Science(), vol 12479. Springer, Cham. https://doi.org/10.1007/978-3-030-83723-5_9
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