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Alstom to supply automatic pilot for Line A of the RER of the Paris network


RER A. Copyright: ALSTOM Transport / TOMA – C. Sasso

Alstom will develop and install, for RATP1, STIF2 and the Ile-de-France region, an automatic pilot3 control system for Line A of the Paris RER. The contract, worth approximately 20 million euros, includes detailed studies, the development of the prototype and equipment for the train sets, testing and project assistance until the commissioning of the rehabilitated line, scheduled for 2018. The project aims to reinforce the performance and frequency of the RER A, which transports 1.2 million passengers per day, making it the most heavily frequented regional line in Europe. 

This new contract demonstrates RATP’s renewed confidence in us and illustrates Alstom’s ambition to reinforce its position in the signalling market,” says Ana Giros, Managing Director, Alstom Transport France. 

The automatic pilot will be put into service on the fleet of 173 trains (MI2N and MI09) currently circulating on Line A of the RER. The system, integrated into the SACEM system, will improve the regularity of the line, while offering time savings of approximately 2 minutes on the average journey between the stations of Vincennes and La Défense. Alstom Transport’s sites at Saint-Ouen and Villeurbanne are involved in the project. 

Since 1989, the SACEM system (system for aiding control, usage and maintenance) has ensured the performance and security of Line A of the RER by continually controlling the speed and the interspacing of the trains. Alstom has actively participated in the development and the implementation of this solution.

About Alstom Transport

A promoter of sustainable mobility, Alstom Transport develops and markets the most complete range of systems, equipment and services in the railway sector. Alstom Transport manages entire transport systems, including trains, signalling, maintenance and modernisation, infrastructure and offers integrated solutions. Alstom Transport had sales of €6.2 billion and booked €10 billion of orders in the fiscal year 2014/15. Alstom Transport is present in over 60 countries and employs around 28,000 people. Present on 12 sites in France, Alstom Transport is the leading French railway company and contributes to the vitality of local economies. Its approximately 8,900 employees in France provide a pool of expertise to serve French and international clients. A job at Alstom creates about three amongst its suppliers.


[1] RATP: Régie Autonome des Transports Parisiens.
[2] STIF: Syndicat des Transports d'Île-de-France.
[3] GOA2 automatic pilot, with conductor