RER E

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RER E
RER E at Neuilly–Porte Maillot station
Overview
Termini	Nanterre–La Folie (E1) Chelles–Gournay (E2), Tournan (E4)
Connecting lines
Stations	25
Service
Type	Rapid transit/commuter rail
System	Réseau Express Régional
Operator(s)	SNCF
Rolling stock	Z 22500, Z 50000, Z 58000
Ridership	60 million journeys per year
History
Opened	14 July 1999 14 December 2003 (extension to Tournan) 6 May 2024 (extension to Nanterre) early 2027 (extension to Mantes-la-Jolie)
Technical
Line length	60 km (37 mi)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Operating speed	120 km/h (75 mph)
Route map Show geographically accurate map Legend planned extension (2026) Mantes-la-Jolie    Mantes–Station Épône–Mézières   Mauldre Aubergenville-Élisabethville Les Mureaux Les Clairières de Verneuil Vernouillet–Verneuil Villennes-sur-Seine Poissy   Achères–Grand-Cormier   Maisons-Laffitte     Seine Sartrouville     Houilles–Carrières-sur-Seine       via Châtelet–Les Halles Seine   to Gare Saint-Lazare  E1  Nanterre–La Folie ( Nanterre-Préfecture) La Défense          Seine Neuilly–Porte Maillot       Haussmann–Saint-Lazare ( Auber & Gare Saint-Lazare ) Magenta ( Gare de l'Est & Gare du Nord ) Rosa Parks   Pantin Noisy-le-Sec   Bondy   Le Raincy–Villemomble–Montfermeil Gagny Le Chénay-Gagny  E2  Chelles–Gournay  *   proposed extension Vaires–Torcy   Lagny–Thorigny   Esbly   Meaux   Rosny–Bois-Perrier   Val de Fontenay    * Nogent–Le Perreux Marne Les Boullereaux-Champigny Villiers–Champigny–Bry  * Villiers-sur-Marne–Le Plessis-Trévise Les Yvris–Noisy-le-Grand Émerainville–Pontault-Combault Roissy-en-Brie Ozoir-la-Ferrière Gretz-Armainvilliers  E4  Tournan   proposed extension Val Bréon  Wheelchair access by prior reservation[1] * Under construction This diagram: view talk edit Show diagram map

RER E is one of the five lines in the Réseau Express Régional (English: Regional Express Network), a hybrid commuter rail and rapid transit system serving Paris and its suburbs. The 60-kilometre (37 mi) line travels between western and eastern suburbs, with all trains serving the stations in central Paris, before branching out towards the ends of the line.

The line runs from the western terminus Nanterre–La Folie (E1) to the eastern termini Chelles–Gournay (E2) and Tournan (E4). It is operated by SNCF.

Originally referred to as the Est Ouest Liaison Express or EOLE (English: East West Express Link), RER E is the newest RER line in the system, opening in 1999. An extension to Tournan opened in 2003. The first phase of a western extension opened on 6 May 2024, extending the line to Nanterre–La Folie, with a further extension to Mantes-la-Jolie under construction and planned to open in early 2027.^[2]