Extension of the RER E to the West

The extension of the line RER E (put forward jointly by the SNCF, the STIF and the Réseau Ferré de France (RFF)), forms part of the transport mobilisation plan for 2013/2017 within the Nouveau Grand Paris.  It is a key element which will relieve pressure on the line RER A which currently links East to West and will reduce rush-hour traffic at Paris Saint-Lazare station.
Completed in 1999, the RER E currently provides a horizontal link from the East towards the centre of Paris from Chelles-Gournay / Tournan-en-Brie towards the Haussmann Saint-Lazare centre within 30 minutes. The Western extension will therefore complete the line with 3 additional stations: Porte Maillot, CNIT – La Défense, and Nanterre La Folie. Beyond the extension, line J of the Transilien is to be refurbished between Mantes-la-Jolie and Nanterre.
The project is due to come into service in phases from 2022 before being fully functional in 2024.
RFF and SNCF are the contracting authorities for the extension of RER E to the West of Paris.
The section from Nord Magenta – Pantin on RER E is soon to be enhanced with thenew Rosa Parks station, which is currently under construction in the 19th district of Paris. This new station will be open to the public from December 2015 and will reinforce public transport in this area which is undergoing a full urban and economic transformation.


Where are we?

  • Public enquiry: January-February 2012
  • Declaration of Public Utility: 31 January 2013
    On the 31 January, the prefects in Hauts-de-Seine, Paris, Val d’Oise and Yvelines signed a declaration of public utility for the extension of the RER E (Eole).
  • In its report and conclusions, the enquiry commission indicated that “the project undeniably addresses needs that have been recognised for several years”.
  • Start of works: 2015
  • Target date for service: 2022 (partial) / 2024 (complete)