View source for RER E

{{Short description|Paris commuter train route}}
{{expand French|Ligne E du RER d'Île-de-France|topic=transport|date=April 2015}}
{{Use dmy dates|date=May 2024}}
{{Infobox rail line
| box_width                       = 
| name                            = RER E
| color                           = {{rcr|Réseau Express Régional|E}}
| logo                            = {{rint|Paris|R|size=50}} {{rint|Paris|R|E|size=50}}
| logo_width                      = 
| logo_alt                        = 
| image                           = File:Gare de Porte Maillot RER E.jpg
| image_width                     = 
| image_alt                       = 
| caption                         = RER E at [[Neuilly–Porte Maillot station]]
| type                            = [[Rapid transit]]/[[commuter rail]]
| system                          = [[Réseau Express Régional]]
| status                          = 
| stations                        = 25
| connectinglines                 = {{Unbulleted list
   | {{rint|paris|m}} {{rint|paris|m|1}} {{rint|paris|m|2}} {{rint|paris|m|3}} {{rint|paris|m|4}} {{rint|paris|m|5}} {{rint|paris|m|9}} {{rint|paris|m|11}} {{rint|paris|m|12}} {{rint|paris|m|13}} {{rint|paris|m|14}}
   | {{rint|paris|r}} {{rint|paris|r|A}} {{rint|paris|r|B}} {{rint|paris|r|C}} {{rint|paris|r|D}}
   | {{rint|paris|i}} {{rint|paris|i|H}} {{rint|paris|i|J}} {{rint|paris|i|K}} {{rint|paris|i|L}} {{rint|paris|i|P}} {{rint|paris|i|U}}
   | {{rint|paris|t}} {{rint|paris|t|1}} {{rint|paris|t|2}} {{rint|paris|t|3b}} {{rint|paris|t|4}}
    }}
| ridership2                      = 60 million journeys per year
| open                            = 14 July 1999<br />14 December 2003 (extension to Tournan)<br />6 May 2024 (extension to Nanterre)<br />early 2027 (extension to Mantes-la-Jolie)
| close                           = 
| operator                        = [[SNCF]]
| start                           = {{stn|Nanterre–La Folie}} (E1)
| end                             = {{stn|Chelles–Gournay}} (E2), {{stn|Tournan}} (E4)
| stock                           = [[SNCF Class Z 22500|Z 22500]], [[SNCF Class Z 50000|Z 50000]], [[RER_NG|Z 58000]]
| linelength_km                   = 60
| gauge                           = {{RailGauge|1435mm|allk=on}}
| speed_km/h                      = 120
| elevation_m                     = 
| website                         = 
| map                             = {{switcher
  | [[File:RER Paris Ligne E tracé réel 2024.svg|265px|center]]
  | Show geographically accurate map
  | {{RER E|inline=yes}}
  | 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 {{convert|60|km|mi|abbr=out|adj=on}} 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 {{stn|Nanterre–La Folie}} (E1) to the eastern termini {{stn|Chelles–Gournay}} (E2) and {{stn|Tournan}} (E4). It is operated by [[SNCF]]. It is the most interconnected line in the [[Île-de-France|Île-de-France region]], with connections to all 4 other [[Réseau Express Régional|RER lines]], 10 out of the 14 [[Paris Métro|Metro lines]] (as well as 3 of the future lines of the [[Grand Paris Express]]), 6 lines of the [[Transilien|Transilien commuter rail service]], 4 [[Tramways in Île-de-France|Tramway lines]], and hundreds of bus routes. Six of the top ten busiest train stations in France are accessible via RER E, including three of Paris' mainline stations: [[Gare du Nord]], [[Gare de l'Est]] and [[Gare Saint-Lazare]].<ref>{{Cite web |title=Voici la gare française la plus fréquentée après celles de Paris : elle a accueilli 36.6 millions de voyageurs l’année dernière |url=https://www.femina.fr/article/classement-gares-les-plus-frequentees-en-france |access-date=2025-06-01 |website=https://www.femina.fr |language=fr-FR}}</ref> 

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 station|Tournan]] opened in 2003. The first phase of a western extension opened on 6 May 2024, extending the line to {{stn|Nanterre–La Folie}}, with a further extension to {{stn|Mantes-la-Jolie}} under construction and planned to open in early 2027.<ref name=":0">{{Cite web |last=Ouest-France |date=2024-11-29 |title=RER E : l’extension de la ligne à l’ouest de Paris ne sera pas terminée fin 2026 |url=https://www.ouest-france.fr/economie/transports/sncf/rer-e-lextension-de-la-ligne-a-louest-de-paris-ne-sera-pas-terminee-fin-2026-6a949dee-ae5c-11ef-b968-56ee5c51c9ef |access-date=2024-11-29 |website=Ouest-France.fr |language=fr}}</ref> It served over 400,000 passengers a day as of March 2025, with expectations of 600,000 daily passengers once the extension has been completed.<ref>{{Cite web |title=Les malheurs du rere en replay - Parigo |url=https://www.france.tv/france-3/paris-ile-de-france/parigo/7177580-les-malheurs-du-rere.html |access-date=2025-06-01 |website=www.france.tv |language=fr}}</ref> 

==History==
[[File:Gare Haussmann Saint Lazare - Paris IX (FR75) - 2023-12-08 - 1.jpg|thumb|250x250px|[[MI 2N]] train at {{stn|Haussmann–Saint-Lazare}} on the RER&nbsp;E.]]
[[File:Gare Magenta - Paris X (FR75) - 2023-12-08 - 3.jpg|thumb|250x250px|[[SNCF Class Z 50000|Z 50000]] train departing [[Magenta station|Magenta]] on the RER E]]
RER E opened on 14 July 1999 between Haussmann–Saint-Lazare and Chelles–Gournay. The construction included a {{convert|2|km|abbr=on}} tunnel between Haussmann–St-Lazare and {{stn|Magenta}} (which serves [[Gare de l'Est]] and [[Gare du Nord]]).

The line was first extended with a new branch from [[Noisy-le-Sec station|Noisy-le-Sec]] to [[Villiers-sur-Marne &ndash; Le Plessis-Trévise (Paris RER)|Villiers-sur-Marne &ndash; Le Plessis-Trévise]] on 30 August 1999. This branch was extended to Tournan on 14 December 2003.

On 13 December 2015, a new [[Rosa Parks station (Paris)|Rosa Parks station]] opened, located in the [[19th arrondissement of Paris]], between the stations Magenta and [[Pantin station|Pantin]].<ref>{{cite web | url = http://www.stif.info/ouverture-de-la-gare-rosa-parks-sur-la-ligne-e-du-rer.html | title = RER E: Ouverture de la gare Rosa Parks sur la ligne E du RER | publisher = STIF | date = December 2015 | access-date = 2015-12-13 | url-status = dead | archive-url = https://web.archive.org/web/20151214195640/http://stif.info/ouverture-de-la-gare-rosa-parks-sur-la-ligne-e-du-rer.html | archive-date = 14 December 2015}}</ref>

On 6 May 2024, the first phase of a western extension opened,<ref name=":2">{{Cite web |date=2024-05-07 |title=EN IMAGES. SNCF : le prolongement du RER E jusqu'à Nanterre enfin inauguré |url=https://actu.fr/ile-de-france/nanterre_92050/en-images-sncf-le-prolongement-du-rer-e-jusqu-a-nanterre-enfin-inaugure_61034499.html |access-date=2024-11-29 |website=actu.fr |language=fr}}</ref> with three new stations: {{stn|Neuilly–Porte Maillot}}, {{stn|La Défense}}, and {{stn|Nanterre–La Folie}}. The extension was initially served by a limited shuttle service between Nanterre and Magenta that operated only outside peak hours. Full service with through-running trains started on 15 December 2024.<ref>{{Cite web |date=2024-11-25 |title=SNCF. Les voyageurs du RER E n'auront plus besoin de changer de gare pour aller dans l'ouest de Paris |url=https://actu.fr/ile-de-france/paris_75056/sncf-les-voyageurs-du-rer-e-n-auront-plus-besoin-de-changer-de-gare-pour-aller-dans-l-ouest-de-paris_61913318.html |access-date=2024-11-29 |website=actu.fr |language=fr}}</ref>

==List of RER E stations==
{| border="0" style="border: 1px solid #999 background-color:white"
|- bgcolor=#{{rcr|Réseau Express Régional|E}}
! {{color|white|Branch}} !! {{color|white|Station}} !! {{color|white|Zone}} !! {{color|white|Served municipalities}} !! {{color|white|Major connections}}
|- align=center | bgcolor="#efefef"
| rowspan=8 bgcolor=#efefef | {{color|#{{rcr|Réseau Express Régional|E}}|'''E1'''}} || {{stl|Réseau Express Régional|Nanterre–La Folie}}|| 3 || [[Nanterre]]
| align=left| {{Unbulleted list
   | {{rint|Paris|R}}{{nnbsp}}{{rint|Paris|R|A}}
   }}
|- align=center
| {{stl|Réseau Express Régional|La Défense}} || 3 || [[Puteaux]]
| align=left| {{Unbulleted list
   | {{rint|Paris|T}}{{nnbsp}}{{rint|Paris|T|2}}
   | {{rint|Paris|M}}{{nnbsp}}{{rint|Paris|M|1}}
   | {{rint|Paris|R}}{{nnbsp}}{{rint|Paris|R|A}}
   | {{rint|Paris|I}}{{nnbsp}}{{rint|Paris|I|L}}{{nnbsp}}{{rint|Paris|I|U}}
   }}
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Neuilly–Porte Maillot}} || 1 || [[Paris]]
| align=left| {{Unbulleted list
   | {{rint|Paris|T}}{{nnbsp}}{{rint|Paris|T|3b}}
   | {{rint|Paris|M}}{{nnbsp}}{{rint|Paris|M|1}}
   | {{rint|Paris|R}}{{nnbsp}}{{rint|Paris|R|C}}
   }}
|- align=center
| {{stl|Réseau Express Régional|Haussmann–Saint-Lazare}} || 1 || [[Paris]]
| align=left| {{Unbulleted list
   | {{rint|Paris|M}}{{nnbsp}}{{rint|Paris|M|3}}{{nnbsp}}{{rint|Paris|M|7}}{{nnbsp}}{{rint|Paris|M|8}}{{nnbsp}}{{rint|Paris|M|9}}{{nnbsp}}{{rint|Paris|M|12}}{{nnbsp}}{{rint|Paris|M|13}}{{nnbsp}}{{rint|Paris|M|14}}
   | {{rint|Paris|r}}{{nnbsp}}{{rint|Paris|r|a}}
   | {{rint|Paris|I}}{{nnbsp}}{{rint|Paris|I|J}}{{nnbsp}}{{rint|Paris|I|L}}
   | {{rint|paris|gdslignes}}
   }}
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Magenta}} || 1 || [[Paris]]
| align=left| {{Unbulleted list
   | {{rint|Paris|M}}{{nnbsp}}{{rint|Paris|M|2}}{{nnbsp}}{{rint|Paris|M|4}}{{nnbsp}}{{rint|Paris|M|5}}{{nnbsp}}{{rint|Paris|M|7}}
   | {{rint|Paris|R}}{{nnbsp}}{{rint|Paris|R|B}}{{nnbsp}}{{rint|Paris|R|D}}
   | {{rint|Paris|I}}{{nnbsp}}{{rint|Paris|I|H}}{{nnbsp}}{{rint|Paris|I|K}}{{nnbsp}}{{rint|Paris|I|P}}
   | {{rint|paris|gdslignes}}
   }}
|- align=center
| {{stl|Réseau Express Régional|Rosa Parks}} || 1 || Paris
| align=left| {{rint|Paris|T}}{{nnbsp}}{{rint|Paris|T|3b}}
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Pantin}} || 2 || [[Pantin]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Noisy-le-Sec}} || 3 || [[Noisy-le-Sec]]
| align=left| {{rint|Paris|T}}{{nnbsp}}{{rint|Paris|T|1}}
|- align=center | bgcolor="#efefef"
| rowspan=5 bgcolor=#efefef | {{color|#c760ad|'''E2'''}} || {{stl|Réseau Express Régional|Bondy}} || 3 || [[Bondy]]
| align=left| {{rint|Paris|T}}{{nnbsp}}{{rint|Paris|T|4}}
|- align=center
| {{stl|Réseau Express Régional|Le Raincy – Villemomble – Montfermeil}}|| 4 || [[Le Raincy]], [[Villemomble]]
| align=left| 
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Gagny}} || 4 || [[Gagny]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Le Chénay-Gagny}} || 4 || [[Gagny]]
| align=left| 
|- align=center | bgcolor="#efefef"
| {{station|Chelles–Gournay}} || 4 || [[Chelles, Seine-et-Marne|Chelles]]<br>[[Gournay-sur-Marne]]
| align=left| {{rint|Paris|I}}{{nnbsp}}{{rint|Paris|I|P}}
|- align=center
| rowspan=12 bgcolor=#efefef | {{color|#c760ad|'''E4'''}} || {{stl|Réseau Express Régional|Rosny–Bois-Perrier}} || 3 || [[Rosny-sous-Bois]]
| align=left| {{Unbulleted list
   | {{rint|Paris|M}}{{nnbsp}}{{rint|Paris|M|11}}
   }}
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Rosny-sous-Bois}} || 3 || [[Rosny-sous-Bois]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Val de Fontenay}} || 3 || [[Fontenay-sous-Bois]]
| align=left| {{rint|Paris|R}}{{nnbsp}}{{rint|Paris|R|A}}
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Nogent–Le Perreux}} || 3 || [[Nogent-sur-Marne]]<br>[[Le Perreux-sur-Marne]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Les Boullereaux-Champigny}} || 3 || [[Champigny-sur-Marne]]
| align=left| 
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Villiers-sur-Marne–Le Plessis-Trévise}} || 4 || [[Villiers-sur-Marne]]<br>[[Le Plessis-Trévise]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Les Yvris–Noisy-le-Grand}} || 4 || [[Noisy-le-Grand]]
| align=left| 
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Émerainville–Pontault-Combault}} || 5 || [[Émerainville]]<br>[[Pontault-Combault]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Roissy-en-Brie}} || 5 || [[Roissy-en-Brie]]
| align=left| 
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Ozoir-la-Ferrière}} || 5 || [[Ozoir-la-Ferrière]]
| align=left| 
|- align=center
| {{stl|Réseau Express Régional|Gretz-Armainvilliers}} || 5 || [[Gretz-Armainvilliers]]
| align=left| 
|- align=center | bgcolor="#efefef"
| {{stl|Réseau Express Régional|Tournan}} || 5 || [[Tournan-en-Brie]]
| align=left| {{rint|Paris|I}}{{nnbsp}}{{rint|Paris|I|P}}
|}

==Map==
[[File:RER Paris Ligne E tracé réel 2024.svg|thumb|400px|center|Geographically accurate path of the RER E]]

==Operation==
===Names of services===
Like all the other [[Réseau Express Régional|RER]] lines, each train is named after the route it takes. The first letter designates the destination, the second indicates whether the train will call at every station or not.
* '''T''' corresponds to {{stn|Tournan}}; '''V''' corresponds to {{stn|Villiers-sur-Marne–Le Plessis-Trévise}},
* '''C''' corresponds to {{stn|Chelles–Gournay}},
* '''H''' corresponds to {{stn|Haussmann–Saint-Lazare}}; '''N''' corresponds to [[Magenta station|Magenta]],
* '''M''' corresponds to {{stn|Nanterre–La Folie}}.

Regular names of services of trains departing from Paris are, among others, ''TAVA'' (stops at [[Magenta station|Magenta]], [[Rosa-Parks station|Rosa Parks]], [[Pantin station|Pantin]], [[Noisy-le-Sec station|Noisy-le-Sec]], [[Val de Fontenay station|Val de Fontenay]], and all stations from [[Villiers-sur-Marne–Le Plessis-Trévise station|Villiers-sur-Marne]] to [[Tournan station|Tournan]]), ''VOHE'' (stops at every station, all the way to [[Villiers-sur-Marne–Le Plessis-Trévise station|Villiers-sur-Marne]]), ''COHI'' (stops at every station all the way to [[Chelles–Gournay station|Chelles–Gournay]]).

== Rolling stock ==

=== Current fleet ===
{| class="wikitable"
! rowspan="2" |Trainset
! rowspan="2" |Class
! rowspan="2" |Image
! rowspan="2" |Type
! colspan="2" |Top speed
! rowspan="2" |Carriages
! rowspan="2" |Number
! rowspan="2" |Routes operated
! rowspan="2" |Built
|-
!mph
!km/h
|-
|[[MI 2N]]
|[[SNCF Class Z 22500|Z 22500]]
|[[File:Z 22500.jpg|center|150x150px]]
| rowspan="3" |[[Electric Multiple Unit|EMU]]
|86
|140
|5
|53
|
* '''all branches of RER E'''
* Haussmann–Saint-Lazare ↔ Chelles - Gournay
* Haussmann–Saint-Lazare ↔ Villiers-sur-Marne - Le Plessis-Trévise
* Haussmann–Saint-Lazare ↔ Tournan
|1999
|-
|Bombardier
Francilien
|[[SNCF Class Z 50000|Z 50000]]
|[[File:277L Achères Ville.jpg|150x150px]]
|86
|140
|8
|64
|'''(equipment in common operation with [[Transilien Line P|line P]])'''

* '''all branches of RER E'''
* Haussmann–Saint-Lazare ↔ Chelles - Gournay
* Haussmann–Saint-Lazare ↔ Villiers-sur-Marne - Le Plessis-Trévise
* Haussmann–Saint-Lazare ↔ Tournan
|2009-2022
|-
|RER NG
|[[RER NG|Z 58000]]
|[[File:RER NG - IMG 9081-2.jpg|150x150px]]
|86
|140
|6
|14
|
*'''only one branch of RER E'''
* Haussmann–Saint-Lazare ↔ Chelles - Gournay

|2018-
|}

==Future==
===Western extension to Mantes-La-Jolie===
[[File:Carte rer e ouest.png|thumb|Map of the extension to Mantes-la-Jolie]]
RER E is currently being extended to the west of Paris, with a first phase connecting Haussmann–Saint-Lazare via [[La Défense station|La Défense]] to Nanterre, and second phase taking over the branch of [[RER A]] to [[Sartrouville]] and [[Poissy]] followed by a section of tracks currently carrying [[Transilien Paris-Saint-Lazare|Transilien J]] to reach [[Mantes-la-Jolie]]. The first phase was expected to open by the end of 2022, with the second phase going into service in 2024.<ref>{{cite web | url = https://www.iledefrance-mobilites.fr/le-reseau/projets/rer-e-prolongement-saint-lazare-mantes-la-jolie | title = Projet : RER ligne E Prolongement Saint-Lazare : Mantes-la-Jolie | date = 2014-03-05 | website = iledefrance-mobilites.fr | access-date = 2022-08-28 | language=fr}}</ref> After delays, the first phase opened on 6 May 2024.<ref name=":2" /> As of 2022, the second phase was not expected to open before the end of 2026.<ref>{{cite web |date=September 2022 |title=L'arrivée du RER Eole dans les Yvelines à nouveau retardée |url=https://www.lesechos.fr/pme-regions/ile-de-france/larrivee-du-rer-eole-dans-les-yvelines-a-nouveau-retardee-1853081 |access-date=2022-10-22 |publisher=Les Echos}}</ref> In November 2024, further delays due to difficulty with implementing the new signalling system were announced,<ref name=":0" /> with the second phase now expected to open in early 2027 with less frequent service, and full service commencing at the end of 2029.

As part of the first phase of the extension, an {{Convert|8|km|adj=on|spell=in}} tunnel was dug between Haussmann–St-Lazare and La Défense. An intermediate station at [[Neuilly–Porte Maillot station|Porte Maillot]] offers a transfer to [[Paris Métro Line 1|Métro line 1]], [[RER C]], and [[Île-de-France tramway Line 3b|tramway line T3b]]. The extension is expected to reduce the load on the central sections of [[RER B]] and [[RER D]] (between Gare du Nord and Châtelet) and [[RER A]] (between La Défense and Auber) by 10–15%. Additionally, transfers will be shifted away from current transfer hub [[Châtelet–Les Halles|Châtelet]] in the city center.<ref>{{cite web | url = http://www.stif.org/IMG/pdf/DPI_RER_E.pdf | title = RER E: Prolongement d'Haussmann-Saint-Lazare à Mantes-la-Jolie | publisher = STIF | date = February 2013 | access-date = 2014-03-26| url-status = dead | archive-url = https://web.archive.org/web/20140322030058/http://www.stif.org/IMG/pdf/DPI_RER_E.pdf | archive-date = 22 March 2014 | language=fr}}</ref>

===Villiers–Champigny–Bry infill station===
A new station on the RER E will open in 2030,<ref>{{cite web |url=https://www.sncf-reseau.com/fr/projets/nouvelle-gare-dinterconnexion-sncf-bry-villiers-champigny |title=Nouvelle gare d'interconnexion SNCF Villiers-Champigny-Bry (ex Bry-Villiers-Champigny) - Grand Paris Express {{!}} SNCF Réseau |date= |website=www.sncf-reseau.com |access-date=12 May 2024}}</ref> between the {{stn|Les Boullereaux-Champigny}} and {{stn|Villiers-sur-Marne–Le Plessis-Trévise}} stations on the Tournan branch to connect with the southern section of [[Paris Métro Line 15]] of the [[Grand Paris Express]].<ref name="lignerougesud">{{cite web |url=https://www.grandparisexpress.fr/ligne-15-sud/gare-villiers-champigny-bry |title=Villiers – Champigny – Bry |work=Société du Grand Paris}}</ref>

It will be located north of Chemin des Boutareines, near the bridge over which the future Altival exclusive right-of-way bus will cross the RER E tracks.<ref name="lignerougesud" /><ref name="lignerougesud2">{{cite web |url=http://www.lignerougesud.fr/wp-content/uploads/2012/08/SGP_GPE_LRS_exposition_Bry_Villiers_Champigny.pdf |title=Panneau d'information Gare Bry Villiers Champigny |work=Société du Grand Paris}}</ref><ref name="ligne_rouge_sud3">{{cite web |url=http://www.societedugrandparis.fr/wp-content/uploads/2014/05/psentation-de-la-runion-publique-bry-sur-marne.pdf |title=Présentation lors de la réunion publique d'information à Bry-sur-Marne - 18 septembre 2012 |work=Société du Grand Paris}}</ref> The Grand Paris Express station platforms will be at a depth of -21 m.

Located south of [[Bry-sur-Marne]] and the [[A4 autoroute]] in [[Villiers-sur-Marne]], the station will serve the equestrian center, the Maisons Rouges business park, the Armoiries and Boutareines ZACs. Users will benefit from numerous shops and services. Infrastructure studies are underway for a period of 13–14 months with funding.<ref name="compterendu">{{cite web |url=http://www.societedugrandparis.fr/wp-content/uploads/2014/05/compte_rendu_reunion_publique_bry.pdf |title=Compte-rendu de réunion publique |author=<!--Not stated--> |date=18 September 2012 |work=Société du Grand Paris}}</ref> These studies will define the nature of the work and the schedule to be respected. The station's location is a complicated issue, as there are currently only two tracks (between Les Boullereaux and Villiers - Le Plessis-Trévise) at this point, where many trains cross each other. A public inquiry phase will follow in 2014.<ref name="compterendu2">{{cite web |url=http://www.societedugrandparis.fr/wp-content/uploads/2014/05/compte-rendu-runion-villiers-sur-marne.pdf |title=Compte-rendu de réunion publique |work=Société du Grand Paris |date=11 October 2012}}</ref>

Initial studies carried out by Réseau ferré de France (RFF) in conjunction with Société du Grand Paris (SGP) show that the additional stops for all trains on the line, as well as any [[Transilien Line P]] services at the station, would require a four-track upgrade between Villiers-Champigny-Bry and Villiers-sur-Marne, at an estimated cost of {{Euro|200&nbsp;million|link=yes}} at 2010 economic conditions, excluding the cost of constructing the passenger building. Rolling stock requirements have not yet been assessed.<ref name=stif120413>{{cite web |url=http://www.stif.org/IMG/pdf/Presentation_du_STIF_au_comite_de_ligne_Paris_Est_du_12_avril_2013-2.pdf |title=Présentation du STIF au comité de ligne Paris-Est (pages 27-36) |work=[[Île-de-France Mobilités|STIF]]|date=7 May 2024 }}</ref>

The Syndicat des transports d'Île-de-France (STIF, now [[Île-de-France Mobilités]]) requested that the current studies include conditions for stopping the two Line P services ([[Coulommiers, Seine-et-Marne|Coulommiers]] and [[Provins]] services.)<ref name=stif120413 />

However, if the Villiers to Roissy-en-Brie services were to be extended, only a third track would be required between the new Villiers - Champigny - Bry station and Villiers-sur-Marne, extending to Émerainville. The work cost would then be halved to {{Euro|100&nbsp;million}}, excluding the cost of constructing the passenger building, at 2010 economic conditions.<ref name=stif120413 />

The station was the subject of a consultation in June 2016, and its cost is estimated at {{Euro|348&nbsp;million}}.<ref name="stif_juin_2016">{{cite web |url=http://www.stif.org/IMG/pdf/stif_-_ca_du_010616_-_interconnexion_ngp_.pdf |title=Nouveau Grand Paris, gare nouvelle de Bry - Villiers - Champigny : Priorité à l'interconnexion lignes 15 sud, E et P |work=[[Île-de-France Mobilités|STIF]] |date=1 June 2016}}</ref>

Construction of the station was declared to be in the public interest on 18 December 2018, following a public inquiry from 4 June to 6 July 2018.<ref>{{cite web |url=http://www.val-de-marne.gouv.fr/content/download/14741/105099/file/arrete%20DUP%20signe%20avec%20annexes.pdf |title=Arrêté N° 2018/4152 du 18 décembre 2018 déclarant d'utilité publique le projet de construction de la gare de « Bry-Villiers-Champigny » sur le territoire des communes de Bry-sur-Marne, Villiers-sur-Marne et Champigny-sur-Marne au bénéfice de SNCF-Réseau et tenant lieu de déclaration de projet |work=Val-de-Marne departmental government |date=18 December 2018 |access-date=24 December 2018}}</ref>

===Eastern extension of the Tournan branch to Val Bréon===
====History====
At the end of the 2000s, the Region's work on the master plan for the [[Île-de-France]] region (SDRIF) opened up the prospect of the next fifteen years. One project caught the attention of elected officials: the eastern extension of the line's Tournan branch from [[Tournan station]] to the Val Bréon [[logistics center]] at [[Châtres, Seine-et-Marne|Châtres]].<ref name="rerchatres">{{cite web |url=http://usagers.coulommiers.free.fr/?p=28 |title=Comité FUT-SP des usagers du Coulommiers - Paris Est : À quand le RER à Châtres et de Marles-en-Brie ?}}</ref><ref name="valbreon">{{cite web |url=http://usagers.coulommiers.free.fr/?p=33 |title=Comité FUT-SP des usagers du Coulommiers - Paris Est : Val Bréon - un projet de gare RER E}}</ref> In 2007, several possible locations for the future station were studied, evaluated, and compared. Some of the proposals studied were rejected. In some cases, personal interests got in the way and interfered with the general interest approach, which did not make the analysis easy but did not prevent it.<ref name=rerchatres />

In 2008, for example, there were two opposing options: either doubling the track from [[Tournan-en-Brie|Tournan]] to [[Marles-en-Brie]], which would become the new RER E terminus after redevelopment or creating a terminus in the heart of the business park using existing freight tracks, the option advocated by the [[SNCF]]. At the time, nothing had been decided by the [[Communauté de communes du Val Bréon]].<ref name=rerchatres /> In July 2009, the newspaper Le Pays briard confirmed that the extension would soon be completed.<ref>{{cite web |url=http://www.lepaysbriard.fr/actualite/Le-RER-E-prolonge-jusqu-au-Val-Breon-919.html |title=Le RER E prolongé jusqu'au Val Bréon |date=10 July 2009 |work=Le Pays Briard}}</ref>

On May 19, 2010, SNCF [[Chief executive officer|CEO]] [[Guillaume Pepy]] and local elected representatives visited the Val Bréon site, where the new eastern terminus is to be built, the possibility of extending the line to Marles-en-Brie having been ruled out.<ref name="parisienbreon">{{cite web |url=http://www.leparisien.fr/transports/vers-un-nouveau-terminus-pour-le-rer-e-20-05-2010-928812.php |title=Vers un nouveau terminus pour le RER E |work=[[Le Parisien]] |date=20 May 2010 |publisher= |access-date=12 June 2010}}</ref> Pepy stated about the project, "it's a fine, interesting project, which makes sense from a rail point of view, with improved quality of service at its heart," which therefore deserves "to be considered. It was also part of a broad agreement between the regional council, [[Réseau Ferré de France|RFF]], SNCF, and STIF (now [[Île-de-France Mobilités]])."<ref name="vrt20610">{{cite web |url=http://www.ville-rail-transports.com/content/eole-compl%C3%A8tement-%C3%A0-l%C2%92est-3 |title=Eole, complètement à l'est ! |date=2 June 2010 |work=Ville, Rail & Transports}}</ref>

[[File:RerE voiesSNCF tournanverscoulommiers.JPG|thumb|250x250px|Facing east towards Val Bréon from Tournan station in April 2008]]

====Project overview====
The project involves extending the RER E line from Tournan station to Val Bréon, one of the largest logistics centers in the Île-de-France. This [[business park]] boasts vast warehouses that house brands such as [[Conforama]], [[IKEA]], and [[Castorama]]. It is home to over 1,000 jobs.<ref name=parisienbreon /> The sector plan calls into question the relevance of this extension.<ref name=stif120413/> This extension is now expected to be completed in 2030.

This extension would make it possible to create a service in line with the development of this area, which is only accessible by car and where the number of employees could increase, as well as resolving the RER line's operating difficulties by creating a new site for parking trains<ref name=vrt20610 /> and relieving the {{stn|Gretz-Armainvilliers}} and Tournan stations of cars arriving from the east of the département: "According to the mayor of Tournan-en-Brie:<ref name=parisienbreon /> "The outskirts of the town are clogged: cars arrive in the morning and leave again in the evening, a daily problem for locals. The current terminus attracts passengers from a radius of around {{convert|50|km|abbr=on}}, taking advantage of the fact that RER E runs to the center of Paris. Once the line has been extended to the west of Paris,<ref name="vrt20610"/> this number is set to increase. The {{convert|3.5|km|abbr=on}} extension would terminate at the Val Bréon station, which Vincent Éblé, then president of the [[Departmental Council of Seine-et-Marne]], described as an "experimental station for the 21st century", i.e. of a new type, not only architecturally but also environmentally. It would be multimodal, environmentally friendly, accessible by bike and bus, and innovative in its functions, not just as a [[transport hub]]. It will also offer its passengers various services, including childcare and concierge. There will also be a post office, library, and shops.<ref name=parisienbreon />

This project, the result of an agreement between local elected representatives, the Île-de-France region, Réseau ferré de France (now [[SNCF Réseau]]), Syndicat des transports d'Île-de-France (now Île-de-France Mobilités) and SNCF, is under study. It would cost between {{Euro|40&nbsp;million|link=yes}} and {{Euro|60&nbsp;million}}.<ref name=vrt20610 /> Vincent Eblé acknowledges at least one weakness in this project: "The Val Bréon area is not easily accessible by public transport. So we need to work together to improve access to Val Bréon. We have considered two bus service projects with the communauté de communes<ref name=parisienbreon /> This extension would be in everyone's interest (businesses, residents, users and the SNCF): "The perfect example of a development that reconciles mobility, sustainable development and economic development." The new station would also make RER E more attractive, creating a "pull" for users, since, according to Vincent Eblé, "any improvement in service translates into greater attractiveness". According to Guillaume Pepy, the RER E would not be saturated, so this attractiveness should not be a problem.<ref name=parisienbreon /> However, studies carried out as part of the sector plan showed that, given the traffic constraints on the whole of [[Transilien Line P]] (between Paris and Tournan-en-Brie), the nine trains (in both directions) that could run per peak hour between Tournan and Val Bréon would require doubling the track on this section of the line, at an estimated cost of around {{Euro|100&nbsp;million}} at 2010 economic conditions. Finally, they highlighted that this extension does not theoretically offer significant traffic potential.<ref name=stif120413 />

===Eastern extension of the Chelles–Gournay branch to Meaux===
[[File:Gare de Meaux-Entrée du BV.jpg|thumb|250x250px|Meaux station in March 2011]]
The eastward extension of branch E2, which currently terminates at [[Chelles-Gournay station]], to [[Meaux station]], with intermediate stops at {{stn|Vaires–Torcy}}, {{stn|Lagny–Thorigny}}, and {{stn|Esbly}}, is included in Phase 3 (2021-2027) of the Schéma directeur de la région Île-de-France (SDRIF), adopted by deliberation of the [[Regional Council of Île-de-France]] on 25 September 2008.<ref>{{cite web |url=http://www.sdrif.com/fileadmin/unloud_file/doc_accueil/SDRIF.PDF |title=SDRIF - Développer le réseau pour accompagner le projet urbain (page 81)}}</ref> However, the sector plan calls into question the relevance of this project.<ref name=stif120413 /> The project is currently planned to open around 2030.

Extending RER E to [[Meaux]] would provide better service to this town, which, with over 50,000 inhabitants, is the most densely populated in the department of [[Seine-et-Marne]]. This project would improve service to the north of the department, particularly the new town of Marne-la-Vallée, with a second significant [[public transport]] line to complement [[RER A]]. It would give users of the current Meaux terminus link from Paris ([[Transilien Line P]]) direct access to the {{stn|Magenta}}, {{stn|Haussmann–Saint-Lazare}}, {{stn|Porte Maillot}} and {{stn|La Défense}} transfer hubs. On the other hand, depending on the number of stops, the RER E service could take longer to reach Paris than Line P trains.

However, the sector plan studies highlighted that mixing RER E and [[Transport express régional]] (TER) traffic between [[Chelles, Seine-et-Marne|Chelles]] (or [[Lagny-sur-Marne|Lagny]] with additional tracks) and Meaux would be a source of conflict, and that access to the RER E tunnel without connections would not result in a gain in journey time between Meaux and Haussmann (estimated at 42 minutes by direct train). Finally, they highlighted that creating a pedestrian link between [[Gare de l'Est]] and [[Gare du Nord]] would significantly facilitate connections between Line P and RER E. As a result, STIF (now [[Île-de-France Mobilités]]) was planning to carry out further studies to assess the benefits of creating a pedestrian link.<ref name=stif120413 />

====Extension to the Val d'Europe area====
In addition to extending the Chelles branch to Meaux station,<ref name=":1">{{cite web |url=https://www.institutparisregion.fr/fileadmin/DataStorage/IauEtVous/mediatheque/docs_historiques_de_reference/1994/rapport.pdf |title=Schéma directeur d'Île-de-France (SDRIF) 1994 (page 141 and 194) |work=Direction Régionale de l’Equipement de la Région Ile-de-France |date=1994 |publisher= |access-date=9 January 2023 |quote=}}</ref> the 1994 Schéma directeur de la région Île-de-France<ref name=":1" /> proposed a new, short eastern branch of RER E to sector IV ([[Val d'Europe]]) of the new town of [[Marne-la-Vallée]]. This branch would have terminated at [[Marne-la-Vallée–Chessy station]]<ref>{{cite web |url=https://www.institutparisregion.fr/fileadmin/NewEtudes/Etude_304/nr_313_15_les_transports_et_le_schema_directeur.pdf |title=Note rapide sur le bilan du SDRIF|page=3|publisher=Institut d'aménagement et d'urbanisme de la région d'Île-de-France |author=<!--Not stated--> |date=December 2002 |website= |access-date=9 January 2023}}</ref><ref name=":1" /> and would have facilitated a new connection with the Marne-la-Vallée A4 branch of the RER A and the [[TGV]] station; it would also have provided better access to [[Disneyland Paris]]. Service to the Val d'Europe and Disneyland Paris would have been improved by a second RER line from Paris, notably from Magenta station, providing access to the eponymous complex without having to pass through {{stn|Châtelet–Les Halles}} and/or {{stn|Val de Fontenay}} stations.

This proposal to extend the RER E to Marne-la-Vallée–Chessy station has never been taken up again since the SDRIF updates and has not been the subject of any studies.

==References==
{{reflist}}

==External links==
* {{Commons category-inline}}

{{Paris Transport Network}}{{Paris Rail Stations}}

[[Category:Réseau Express Régional|E, RER E]]
[[Category:Railway lines opened in 1999]]
[[Category:1999 establishments in France]]