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RER B
Overview
Type	Rapid transit/commuter rail
System	Réseau Express Régional
Status	Operational
Termini	Aéroport Charles de Gaulle 2 TGV (B3), Mitry–Claye (B5) Robinson (B2), Saint-Rémy-lès-Chevreuse (B4)
Stations	47
Ridership	165 million journeys per annum (2004)
Operation
Opened	1977 (last extension in 1994)
Operator(s)	RATP/SNCF
Rolling stock	MI 79, MI 84
Technical
Line length	80.0 km (49.7 mi)
Track gauge	1,435 mm (4 ft 8 1⁄2 in)
Route map Geographically accurate path of the RER B

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[ v t e ] RER B
Legend
B3  Aéroport Charles de Gaulle 2 TGV  B5  Aéroport Charles de Gaulle 1 Mitry – Claye Parc des Expositions Villeparisis – Mitry-le-Neuf Villepinte Vert-Galant Sevran – Beaudottes Sevran – Livry Aulnay-sous-Bois Le Blanc-Mesnil Drancy Le Bourget La Courneuve – Aubervilliers La Plaine – Stade de France Gare du Nord Châtelet – Les Halles Seine St-Michel – Notre-Dame Luxembourg Port-Royal Denfert-Rochereau Cité Universitaire Gentilly Laplace Arcueil – Cachan Bagneux Bourg-la-Reine Sceaux Parc de Sceaux Fontenay-aux-Roses La Croix de Berny Robinson Antony  B2  Fontaine-Michalon Les Baconnets Massy – Verrières Massy – Palaiseau Palaiseau Palaiseau – Villebon Lozère Le Guichet Yvette Orsay – Ville Bures-sur-Yvette La Hacquinière Gif-sur-Yvette Courcelle-sur-Yvette Saint-Rémy-lès-Chevreuse  B4

The RER B is one of the five lines in the RER rapid transit system serving Paris, France.

The line runs from the northern termini Aéroport Charles de Gaulle (B3) and Mitry-Claye (B5) to the southern termini Robinson (B2) and Saint-Rémy-lès-Chevreuse (B4).

• First opened : 9 December 1977


• Length : 80.0 km (49.7 mi)


• Number of stops : 47


• Traffic (2004) : 165 million journeys per annum (figure only for the RATP section of the line)
  

The southern part of the line (south of Gare du Nord) is operated by the RATP, and the northern part by the SNCF. Trains are owned by either company.

Until December 2009, drivers changed at Gare du Nord; RATP and SNCF drivers now operate their trains along the full length of the line. Trains moving from one network to the other at this station is known as the Interconnexion.

Technical difficulties of the Interconnexion include the shared tunnel with RER D between Châtelet – Les Halles and Gare du Nord, and the fact that while the SNCF part in the northern suburbs use 25 kV AC, the RATP part uses 1500 V DC, forcing the use of dual-voltage trains.

Chronology

Line B was the product of the connection in 1977 of the Ligne de Sceaux terminus, Luxembourg, with the Gare du Nord via Châtelet – Les Halles. In 1988 St-Michel – Notre-Dame station between Luxembourg and Châtelet – Les Halles was opened to provide connection with RER C and Métro Line 10 at Cluny – La Sorbonne, a station which had been closed since the beginning of World War II and was entirely renovated for the occasion.

• 
  1846 : The Ligne de Sceaux is inaugurated from Massy to Denfert-Rochereau.


• 
  1862 : The Chemin de Fer du Nord line from Paris to Soissons via Mitry-Claye is opened.


• 
  From 1889 to 1895 : The Ligne de Sceaux is extended from Denfert-Rochereau to Luxembourg.


• 
  1937 : The CMP (the company which operated Paris subways at the time) buys from the PO company the "ligne de Sceaux" which connected the Luxembourg Garden to Robinson and Saint-Rémy-lès-Chevreuse.


• 
  1976 : A new 13.5 km (8.4 mi) long line from Aulnay-sous-Bois to Paris-Charles de Gaulle Airport (terminal 1) is opened, linking it with Paris.


• 
  9 December 1977 : The "ligne de Sceaux" is extended to Châtelet-les Halles, 2 km (1.2 mi), and becomes the RER B.


• 
  10 December 1981 : The line is extended from Châtelet-les Halles to Gare du Nord, 2.5 km (1.6 mi) (branch B1). RATP trains to Robinson and Saint-Rémy-lès-Chevreuse make end-to-end ("bout à bout") connections with SNCF trains to Aulnay-sous-Bois, Paris-Charles de Gaulle Airport and Mitry, 42 km (26 mi), but without through working due to a difference in electrical system (1500V DC to the south, 25kV AC to the north).


• 
  January 1983 : New station, Parc-des-Expositions, opened. Located between Villepinte and Roissy.


• 
  7 June 1983 : Some trains work through between points north and south of Gare du Nord ("Interconnexion Robinson / St-Rémy – Roissy / Mitry"). Service increased in 1984 and 1987.


• 
  17 February 1988 : The station St-Michel – Notre-Dame is inaugurated between Luxembourg and Châtelet in order to offer a quick connection with metro line 10 and the RER C.


• 
  2 October 1994 : OrlyVAL line opens, connecting Antony station with Orly Airport, 8 km (5.0 mi).


• 
  13 November 1994 : The line is extended to Aéroport Charles de Gaulle 2 – TGV, 1 km (0.62 mi).


• 
  28 January 1998 : "La Plaine – Voyageurs" station is moved by a few hundred meters and renamed "La Plaine – Stade de France" in order to reflect the name of the Stade de France for the 1998 FIFA World Cup held in Paris.

List of RER B stations

• 
  RER B3
  
  
  
  • Aéroport Charles de Gaulle 2 – TGV
  
  
  • Aéroport Charles de Gaulle 1
  
  
  • Parc des Expositions
  
  
  • Villepinte
  
  
  • Sevran – Beaudottes
  
  
  
  


• 
  B5
  
  
  
  • Mitry – Claye
  
  
  • Villeparisis – Mitry-le-Neuf
  
  
  • Vert-Galant
  
  
  • Sevran – Livry
  
  
  
  


• Aulnay-sous-Bois


• Le Blanc-Mesnil


• Drancy


• Le Bourget


• La Courneuve – Aubervilliers


• La Plaine – Stade de France


• Gare du Nord


• Châtelet – Les Halles


• St-Michel – Notre-Dame


• Luxembourg


• Port-Royal


• Denfert-Rochereau


• Cité Universitaire


• Gentilly


• Laplace


• Arcueil – Cachan


• Bagneux


• Bourg-la-Reine


• 
  B2
  
  
  
  • Sceaux
  
  
  • Fontenay-aux-Roses
  
  
  • Robinson
  
  
  
  


• 
  B4
  
  
  
  • Parc de Sceaux
  
  
  • La Croix de Berny
  
  
  • Antony
  
  
  • Fontaine-Michalon
  
  
  • Les Baconnets
  
  
  • Massy – Verrières
  
  
  • Massy – Palaiseau
  
  
  • Palaiseau
  
  
  • Palaiseau – Villebon
  
  
  • Lozère
  
  
  • Le Guichet
  
  
  • Orsay – Ville
  
  
  • Bures-sur-Yvette
  
  
  • La Hacquinière
  
  
  • Gif-sur-Yvette
  
  
  • Courcelle-sur-Yvette
  
  
  • Saint-Rémy-lès-Chevreuse
  
  
  
  

Rolling stock

RER B is operated by 117 MI 79 and 31 MI 84 sets. These are to be replaced from 2024.^[1]

See also

• List of stations of the Paris Métro


• List of stations of the Paris RER

References

External links

• 
  RATP official website (in French)
  


• RATP website in English


• Interactive Map of the RER (from RATP's website)


• Interactive Map of the Paris métro (from RATP's website)


• 
  Mobidf website, dedicated to the RER (unofficial)^{[permanent dead link]}(in French)
  


• 
  Metro-Pole website, dedicated to Paris public transports (unofficial) (in French)