The Réseau Express Régional, commonly abbreviated RER, is a hybrid commuter rail and rapid transit system, similar to the S-Bahns of German-speaking countries and the S Lines of Milan, serving Paris and its suburbs. It acts as a combined city-center underground rail system and suburbs-to-city-center commuter rail. In the city center, it acts as a faster counterpart of the Paris Métro, having fewer stops.
Poissy station is a rail station in Poissy, France, at the western edge of Paris.
RER A is one of the five lines in the Réseau Express Régional, a hybrid commuter rail and rapid transit system serving the city and suburbs of Paris, France. The 108.5-kilometre (67.4 mi) line crosses the region from east to west, with all trains serving a group of stations in central Paris, before branching out towards the ends of the line.
The arrondissement of Saint-Germain-en-Laye is an arrondissement of France in the Yvelines department in the Île-de-France region. It has 44 communes. Its population is 527,408 (2021), and its area is 350.9 km2 (135.5 sq mi).
Le Vésinet is a suburban commune in the Yvelines department in the Île-de-France region in north-central France. It is a part of the affluent outer suburbs of western Paris, 16.4 km (10.2 mi) from the centre of Paris.
The Compagnie des chemins de fer de l'Ouest, often referred to simply as L'Ouest or Ouest, was an early French railway company which operated from the years 1855 through 1909.
Réseau Saint-Lazare is the network of railway lines originating from Saint Lazare Station in Paris. The network stretches from Paris to Normandy and encompasses suburban services. Parisian suburban rail services are operated under SNCF's brand name Transilien. Intercity services are also operated by SNCF but under the brand name Corail.
Le Pecq is a commune in the Yvelines department in the Île-de-France region in north-central France. It is located in the western suburbs of Paris, 18.4 km (11.4 mi) from the center of Paris.
Transilien Line U, also known as "La Défense - La Verrière" or more often simply "ligne U", is a tangential commuter train link, which serves the western Paris region from La Défense. It links the Paris's business district of La Défense to La Verrière station, in the south-west of Ile-de-France. It is one of the two commuter train lines in the Transilien network that does not originate from a large Parisian station, along with the V. The line has 55,000 passengers per weekday in 2014.
Saint-Germain-en-Laye is the main railway station serving Saint-Germain-en-Laye, France. The station opened on 14 August 1847 with the opening of the Paris-St-Lazare–St-Germain-en-Laye railway, ligne de Saint Germain, an atmospheric railway. Twelve years later, conventional locomotives replaced the atmospheric powered engines. The original station had a large veranda building above the terminating lines.
Le Vésinet–Centre station is a railway station in Le Vésinet, a suburb about 16 kilometres (9.9 mi) west of central Paris. Vésinet–Centre station uses a basic RER station setup with two tracks and two side platforms.
Rueil-Malmaison is a French railway station on the Paris-Saint-Lazare to Saint-Germain-en-Laye line, located in the municipality of Rueil-Malmaison, in the Hauts-de-Seine department in the Île-de-France region.
Saint-Maur–Créteil station is a railway station in the commune of Saint-Maur-des-Fossés, Val-de-Marne. It is served by RER A and in the future, Paris Metro Line 15 in 2026.
Joinville-le-Pont station is a railway station in the French commune of Joinville-le-Pont, Val-de-Marne, a southeastern suburb of Paris.
Nanterre–Préfecture is a RER train station in the commune of Nanterre, west of central Paris, in the department of Hauts-de-Seine in France. The station was opened on 1 October 1973, on the "ligne de St-Germain" connecting Auber and Saint-Germain-en-Laye. It is the westernmost station of the central trunk segment of the RER A. The line splits at this station into multiple branches headed westward; the A1 and the A3 and A5 branches respectively.
Neuville-Université is a train station in Neuville-sur-Oise, in Val d'Oise department, in France.
La Varenne–Chennevières station is a French railway station in Saint-Maur-des-Fossés, in Val-de-Marne, France.
The Communauté d'agglomération Saint Germain Boucles de Seine is the communauté d'agglomération, an intercommunal structure, in the western suburbs of Paris. It is located in the Yvelines and Val-d'Oise departments, in the Île-de-France region, northern France. It was created in January 2016. Its seat is in Le Pecq. Its area is 666.7 km2. Its population was 335,109 in 2018.
Les Vallées station is a French Railway station located on the Place de la Gare-des-Vallées in the commune of La Garenne-Colombes, Hauts-de-Seine department in the Île-de-France region. Due to the surrounding density of the stations neighbourhood, it also serves the nearby communes of Bois-Colombes and Colombes. Established at an elevation of 39 meters, the station is located at kilometric point (KP) 6.973 on the Paris-Saint-Lazare—Saint-Germain-en-Laye railway, between the stations of Bécon-les-Bruyères and La Garenne-Colombes.
The Paris–Saint-Lazare–Saint-Germain-en-Laye line is a 20.4 km (12.7 mi) long double-track suburban railway line in France, connecting Paris-Saint-Lazare station to Saint-Germain-en-Laye station, in the Yvelines department. It is now designated as line no. 975 000 of the national rail network.
