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Digital computerized interlocking system commissioned for French rail network
Alstom has successfully deployed the ARGOS computerized interlocking system at Montbard to enhance the performance and digitalization of the French railway network.
www.alstom.com
The commissioning at the Montbard site, situated on a 30-kilometer railway line between Nuit-sous-Ravières and Les Laumes, serves as a pilot deployment. This initiative is part of an innovation partnership with SNCF Réseau aimed at transitioning signaling systems toward integrated and industrially scalable digital solutions. This digitalization is a prerequisite for the implementation of the ERTMS-based speed control system intended to increase capacity on the high-speed line between Paris and Lyon.
System Innovations and Technical Objectives
The ARGOS system ensures real-time communication between ground-based signaling installations and Centralized Network Control Centres. The partnership aims to achieve several technical and economic benchmarks for third-generation interlocking:
Infrastructure Reduction: The system utilizes smart object controllers to interface directly with trackside equipment such as signals and point machines.
- Digital Continuity: The architecture eliminates intermediate relays, reducing cabling volumes and maintenance costs.
- Deployment Efficiency: The modular design is intended to shorten deployment and modification timelines while ensuring high levels of availability and safety.
- Cybersecurity: Enhanced security requirements are incorporated into the system from the design stage to protect rail operations.
Strategic Significance
Frédéric Wiscart, President of Alstom France, Belgium & Luxembourg, stated that the commissioning illustrates a commitment to a digitalized and interconnected rail network. The solution is designed to improve operational reliability and facilitate maintenance activities as the network prepares for future traffic changes.
Development and Resource Allocation
The project involved nearly five years of joint effort between Alstom and SNCF Réseau. Development was supported by approximately 400 experts across several Alstom sites in France:
- Saint-Ouen: Provided engineering center support for solution development.
- Villeurbanne: Acted as the center of excellence for digital and railway electronics.
- Mignières: Managed the pre-wiring and preparation of ARGOS shelters.
Edited with AI assistance.
