Abstract
Critical systems like railway signaling systems need to guarantee important properties such as safety. Formal methods have achieved considerable success in designing critical systems with verified desirable properties. In this paper, we propose a formal model of ERTMS/ETCS (European Rail Traffic Management System/European Train Control System) which is an innovative railway signaling system. This work focuses on Hybrid ERTMS/ETCS Level 3 which is currently under design, by studying and modeling the functionalities and relations of its different sub-systems. The proposed model is based on model transformation from UML (Unified Modeling Language) class diagrams to the Event-B formal language. UML is used as the primary modeling notation to describe the structure and the main characteristics of the studied system. The generated Event-B model is enriched by the formalization of safety properties. We verify and validate the correctness of the proposed formalization using the ProB model-checker and animator.
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Acknowledgments
This work is funded by the NExTRegio project of IRT Railenium. The authors would like to thank SNCF Réseau for its support.
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Ait Wakrime, A., Ben Ayed, R., Collart-Dutilleul, S., Ledru, Y., Idani, A. (2018). Formalizing Railway Signaling System ERTMS/ETCS Using UML/Event-B. In: Abdelwahed, E., Bellatreche, L., Golfarelli, M., Méry, D., Ordonez, C. (eds) Model and Data Engineering. MEDI 2018. Lecture Notes in Computer Science(), vol 11163. Springer, Cham. https://doi.org/10.1007/978-3-030-00856-7_21
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DOI: https://doi.org/10.1007/978-3-030-00856-7_21
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