RER C: traffic disrupted or interrupted, real-time information on the line

Published by Rizhlaine de Sortiraparis · Updated on September 19, 2025 at 12:00 a.m.
Social unrest, strikes, technical or passenger incidents, disrupted or interrupted traffic, roadworks or closed stations: we bring you real-time traffic news on the RER C in the Paris region.

With a route of around 187km, RER C is the second longest line in the RER network(Réseau Express Régional d'Île-de-France). Introduced into service in 1979, RER C serves no fewer than 84 stops, crossing several departments of the Paris region: Yvelines,Essonne, Val-de-Marne, Seine-Saint-Denis, Val d'Oise and, of course, Paris. The RER C also offers connections with several Paris metro lines (6, 8, 10) and other RER lines(A, B, D).

In the City of Light, the RER C runs through several key arrondissements at around ten stations. The Paris section includes stations close to the Musée d'Orsay, the Eiffel Tower, Les Invalides and the Musée du Quai Branly in the 7th arrondissement, as well as Quartier Latin in Saint-Michel, and provides easy access to Gare d'Austerlitz. Beyond the capital's borders, the RER C provides easy access to the Château de Versailles, Louis XIV's famous residence in the Yvelines region, which attracts visitors from all over the world, as well as toParis Orly airport.

Would you like to be kept up to date ontraffic conditions on the RER C line of the Paris region public transport network? We're here to provide you with real-time information on current and future disruptions on this train line.

  • RER C: Adjusted transport plan from March 30 to April 30:
    From Monday, March 30 to Thursday, April 30, a few service reductions are planned on the Paris-Austerlitz / Brétigny axis. The updated service reductions take effect from Monday, March 30:
    Trains ZANI scheduled at 07:33 and 08:02 from Brétigny are canceled.
    Trains BALI scheduled at 17:46 and 18:16 from Paris-Austerlitz are canceled.
    Two trains KNAK will make an extra stop at Saint Michel Sur Orge and Sainte Geneviève des Bois. These trains will see their passing times between Dourdan and Brétigny moved forward by one to two minutes. They are the 07:14 and 07:27 departures from Dourdan.
    Before you head to the station, we advise you to check your train’s timetable on the Ile-de-France Mobilités app, the Transilien.com site, SNCF Connect, or your mobility app. Motif: Trains retained for maintenance work.
  • RER C : between Avenue Henri Martin and Pontoise, from 7 to 30 April:
    Period: evenings.
    Dates: Tuesday 7 to Thursday 30 April, excluding Saturdays and Sundays.
    Traffic is suspended between Avenue Henri Martin and Pontoise:
    - Last departure from Avenue Henri Martin at 21:40
    - Last departure from Pontoise at 21:58
    Disruption: line H, metro, trams or city buses.
    Reason: works on the rail network.
  • RER C: Between Dourdan and Paris Austerlitz from April 7 to April 30:
    Period: Evenings.
    Dates: From Tuesday, April 7th to Thursday, April 30th, excluding Saturdays and Sundays.
    Train services are suspended between Dourdan and Paris Austerlitz: - Last departure from Dourdan at 9:07 PM
    - Last departure from Paris Austerlitz at 9:17 PM
    From 10:20 PM onwards, trains will terminate at Brétigny station. A replacement bus service will be available, serving intermediate stations.
    Reason: Rail network maintenance work.
  • RER C: Between Javel and Versailles Château/St-Quentin from April 1 to April 24.
    Period: Evenings.
    Dates: From Wednesday, April 1st, to Friday, April 24th (excluding Saturdays and Sundays).
    Traffic between Javel and Versailles Château / St-Quentin is suspended:
    - Last departure from Javel to St-Quentin at 9:17 PM
    - Last departure from Javel to Versailles Château at 11:11 PM
    - Last departure from Versailles Château at 9:55 PM
    - Last departure from St-Quentin at 9:40 PM
    During the evenings, some trains will either terminate or originate at Chaville Vélizy. Alternative routes include line N trains or city buses 169 and 171.
    Reason: Railway maintenance work.
  • RER C: Between Saint-Martin d'Étampes and Paris Austerlitz, April 7th to April 30th:
    Period: Evenings.
    Dates: From Tuesday, April 7 to Thursday, April 30, excluding Saturdays and Sundays.
    Train service is suspended between Saint-Martin d'Étampes and Paris Austerlitz: 
    - Final departure from Saint-Martin d'Étampes at 9:41 PM
    - Final departure from Paris Austerlitz at 10:31 PM
    A replacement bus service has been organized to serve intermediate stations.
    Reason: Railway construction works.
  • RER C: Between Paris Austerlitz and Juvisy from April 1st to April 30th:
    Period: Evenings.
    Dates: From Wednesday, April 1st to Thursday, April 30th (excluding weekends).
    Train service between Paris Austerlitz and Juvisy will be suspended with the following arrangements:
    - Last train from Juvisy departs at 10:29 PM
    - Last train from Paris Austerlitz departs at 10:36 PM
    Replacement bus services will be provided, stopping at all intermediate stations.
    Reason: Railway network maintenance works.
  • RER C: Between Paris Austerlitz and Pont de Rungis from April 7 to April 30:
    Period: Evenings.
    Dates: from Tuesday, April 7 to Thursday, April 30 (excluding Saturdays and Sundays).
    Train services between Paris Austerlitz and Pont de Rungis will be suspended:
    - Last departure from Paris Austerlitz at 10:27 PM
    - Last departure from Pont de Rungis at 10:08 PM
    Alternative transportation: metro, tramways, or city buses.
    Reason: railway network maintenance works.
  • RER C: From Paris Austerlitz to Massy-Palaiseau on weekends in April:
    Period : throughout the weekend.
    Reason : maintenance work on the railway network.
  • RER C: Athis, Ablon, Villeneuve-le-Roi April 11-12-18-19-25-26/04 :
    Period: All weekend.
    Dates: April 11–12, April 18–19, and April 25–26.
    Reason: railway network works.
  • RER C: Service disruptions between Dourdan and Paris Austerlitz from April 11 to April 18 and on April 25:
    Period: Evenings.
    Dates: Saturdays, April 11, 18, and 25.
    Train services between Dourdan and Paris Austerlitz will be suspended:
    - Last train from Dourdan at 9:07 PM
    - Last train from Paris Austerlitz at 10:45 PM
    A replacement bus service will be available, stopping at intermediate stations.
    Reason: Railway infrastructure maintenance work.
  • RER C: Between Saint-Martin d'Étampes and Paris Austerlitz from April 11 to 18 and the 25th
    Period: Evenings.
    Dates: Saturdays, April 11, 18, and 25.
    Traffic will be disrupted between Saint-Martin d'Étampes and Paris Austerlitz, with the last departures as follows: - From Saint-Martin d'Étampes at 8:41 PM
    - From Paris Austerlitz at 11:00 PM
    A replacement bus service will operate, serving intermediate stations along the route.
    Reason: Railway maintenance work.
  • RER C: Between Javel and Versailles Château, April 11-12-18-19:
    Period: evenings.
    Dates: weekends of April 11-12 and April 18-19.
    Travel is disrupted between Javel and Versailles Château:
    - Last departure from Javel at 12:11 a.m.
    - Last departure from Versailles Château at 11:25 p.m.
    Alternate options include line N or local buses 169 and 171.
    Reason: railway network maintenance work.
  • RER C: Between Juvisy and Paris Austerlitz on April 11, 12, 18, 19, 25, and 26
    Period: Evenings.
    Dates: Weekends of April 11-12, 18-19, and 25-26.
    Train traffic is disrupted between Juvisy and Paris Austerlitz: 
    - Last train from Juvisy departs at 9:59 PM
    - Last train from Paris Austerlitz departs at 11:06 PM
    A replacement bus service is organized, serving intermediate stations.
    Reason: Railway network maintenance.
  • RER C: Saint-Martin d'Étampes and Paris-Austerlitz, 05-06-12-19-26/04
    Period: Evenings.
    Dates: Sundays, April 5, 12, 19, 26, and Monday, April 6.
    Traffic will be disrupted between Saint-Martin d'Étampes and Paris Austerlitz:
    - Last train from Saint-Martin d'Étampes at 9:41 PM
    - Last train from Paris Austerlitz at 10:45 PM
    A replacement bus service will be in operation, serving the intermediate stations.
    Reason: Railway maintenance work.
  • RER C: Between Dourdan and Paris Austerlitz on June 5, 6, 12, 19, and 26 / April 26
    Period: evenings.
    Dates: Sundays, April 5, 12, 19, 26, and Monday, April 6.
    Train services between Dourdan and Paris Austerlitz will be suspended:
    - Last train from Dourdan departs at 9:07 p.m.
    - Last train from Paris Austerlitz departs at 10:15 p.m.
    A replacement bus service will be provided, serving intermediate stations.
    Reason: track maintenance work.
  • RER C: Between Champ de Mars and Saint-Quentin / Versailles Château – April 25-26:
    Period: Entire weekend.
    Dates: From Saturday, April 25 to Sunday, April 26.
    Travel will be disrupted between: - Champ de Mars and St-Quentin en Yvelines - Champ de Mars and Versailles Château
    Alternatives: Line N, metro, tram, or city bus services.
    Reason: Rail network maintenance work.
  • RER C: Between Dourdan and Paris Austerlitz — Service updates on 05, 06, 12, 19, and 26 April
    Period: the evenings.
    Dates: Sundays, April 5, 12, 19, 26, and Monday, April 6.
    Train traffic will be disrupted between Dourdan and Paris Austerlitz:
    - Last departure from Dourdan at 9:07 PM
    - Last departure from Paris Austerlitz at 10:15 PM
    A replacement bus service will be in operation, serving the intermediate stations.
    Reason: railway network maintenance.
  • RER C: between Javel and Versailles-Château/St-Quentin from 27 to 30 April:
    Period: evenings.
    Dates: from Monday, April 27 to Thursday, April 30.
    Traffic is interrupted between Javel and Versailles Château/St-Quentin:
    - Last departure from Javel to St-Quentin at 21:17
    - Last departure from Javel to Versailles Château at 23:11
    - Last departure from Versailles Château at 22:25
    - Last departure from St-Quentin at 21:40
    During the evening, some trains will terminate at or originate from Chaville Vélizy or Versailles Chantiers.
    Report: line N or city bus 169 or 171
    Reason: railway works.
  • RER C: between Saint-Martin-d'Étampes and Paris Austerlitz on 01/05:
    Period: the evening.
    Dates: Friday, May 1.
    Traffic is suspended between Saint-Martin d'Étampes and Paris Austerlitz:
    - Last departure from Saint-Martin d'Étampes at 21:41
    - Last departure from Paris Austerlitz at 22:45 From 00:20, some trains will terminate at Brétigny. A replacement bus service is provided, with stops at the intermediate stations.
    Reason: works on the rail network.
  • RER C: between Dourdan and Paris Austerlitz. on 03-08-10-14-17-24-31/05:
    Period : evenings.
    Dates : Sundays and public holidays on May 3, 8, 10, 14, 17, 24 and 31.
    Train traffic will be suspended between Dourdan and Paris Austerlitz: - Last departure from Dourdan at 21:07 - Last departure from Paris Austerlitz at 22:15
    A replacement bus service will operate, stopping at intermediate stations.
    Reason : railway works.
  • RER C: Saint‑Martin-d'Étampes and Paris-Austerlitz 03-08-10-14-17-24-31 May:
    Period: evenings. Dates: Sundays and public holidays 3, 8, 10, 14, 17, 24, and 31 May. Traffic is interrupted between Saint-Martin d'Étampes and Paris Austerlitz:
    - Last departure from Saint-Martin d'Étampes at 21:41
    - Last departure from Paris Austerlitz at 22:45
    A replacement bus service is provided, with stops at intermediate stations.
    Reason: works on the rail network.
  • RER C: between Saint-Martin-d'Étampes and Paris-Austerlitz from 04/05 to 29/05:
    Period : Evening services.
    Dates : From Monday 4 to Friday 29 May (excluding Saturdays, Sundays, holidays, and Friday 15 May).
    Rail traffic between Saint-Martin d'Étampes and Paris Austerlitz will be suspended:
    - Last departure from Saint-Martin d'Étampes at 21:41
    - Last departure from Paris Austerlitz at 22:31
    A replacement bus service will operate, serving intermediate stations.
    Reason : Works on the railway network.
  • RER C: between Javel and Versailles-Château/St-Quentin, May 4–29:
    Period: evenings.
    Dates : from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday, May 15).
    Traffic will be interrupted between Javel and Versailles Château/ St-Quentin:
    - Last departure from Javel to St-Quentin at 23:02
    - Last departure from Javel to Versailles Château at 23:11
    - Last departure from Versailles Château at 22:25
    - Last departure from St-Quentin at 22:40Report: line N or city bus 169 or 171
    Reason: railway network works.
  • RER C: between Paris Austerlitz and Juvisy, from 4 May to 29 May.
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday, May 15).
    Train traffic is suspended between Paris Austerlitz and Juvisy:
    - Last departure from Juvisy at 22:29
    - Last departure from Paris Austerlitz at 22:36
    A replacement bus service will be deployed, serving the intermediate stations.
    Reason: railway works.
  • RER C: between Paris Austerlitz and Pont de Rungis, May 4–29:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, public holidays, and Friday, May 15).
    Reason: works on the railway network.
  • RER C: between Dourdan and Paris Austerlitz from 04/05 to 29/05:
    Period : Evenings. Dates: from Monday the 4th to Friday the 15th of May (excluding Saturdays, Sundays, holidays, and Friday May 15). Traffic is suspended between Dourdan and Paris Austerlitz:
    - Last departure from Dourdan at 21:07
    - Last departure from Paris Austerlitz at 21:17
  • RER C: between Avenue Henri Martin and Pontoise from 4 May to 29 May:
    Period: evenings.
    Dates: from Monday the 4th to Friday the 29th of May (excluding Saturdays, Sundays, holidays and Friday the 15th of May)
    Traffic is suspended between Avenue Henri Martin and Pontoise:
    - Last departure from Avenue Henri Martin at 21:40
    - Last departure from Pontoise at 21:58
    Alternate service: line H or a replacement bus, plus metro, tramways or city buses.
    Reason: works on the railway network.
  • RERC: Juvisy-Dourdan/St-Martin d'Étam. May 8-9-10, 14-15-16-17, 30-31:
    Period: All weekend through 5 p.m. on Sundays.
    Dates: from 8 to 10 May, from 14 to 17 May, from 30 to 31* May.
    Traffic is suspended between Juvisy and Dourdan and Saint-Martin d'Étampes.
    A replacement bus service is provided, serving the intermediate stations.* Notable: on Sundays May 10, 17 and 31, train service will resume from 5 p.m.
    Reason: works on the railway network.
  • RERC: Juvisy–Dourdan / St-Martin d'Étam. May 8-9-10-14-15-16-17-30-31:
    Period : All weekend long until 5 p.m. on Sundays.
    Dates : from May 8 to 10, from May 14 to 17, from May 30 to 31*.
    Traffic is interrupted between Juvisy and Dourdan and Saint-Martin d'Étampes.
    A replacement bus service is in operation, stopping at intermediate stations.* Special note: on Sundays May 10, 17 and 31, train traffic will resume from 5 p.m.
    Reason : works on the railway network.
  • RER C: between Paris Austerlitz and Juvisy from May 4 to May 29.
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday, May 15).
    Rail traffic will be interrupted between Paris Austerlitz and Juvisy:
    - Last train from Juvisy at 22:29
    - Last train from Paris Austerlitz at 22:36
    A replacement bus service will be in place, serving the intermediate stations.
    Reason: railway works.
  • RER C: between Dourdan and Paris Austerlitz from May 4 to May 29.
    Period: Evenings. Dates: from Monday the 4th to Friday May 15 (excluding Saturdays, Sundays, holidays, and Friday May 15). The service is suspended between Dourdan and Paris Austerlitz:
    - Last departure from Dourdan at 21:07
    - Last departure from Paris Austerlitz at 21:17
  • RER C: between Saint-Martin-d'Étampes and Paris-Austerlitz from May 4 to May 29:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, public holidays, and Friday, May 15).
    Traffic is suspended between Saint-Martin-d'Étampes and Paris Austerlitz:
    - Last departure from Saint-Martin-d'Étampes at 21:41
    - Last departure from Paris Austerlitz at 22:31
    A replacement bus service will operate, stopping at the intermediate stations.
    Reason: works on the railway network.
  • RER C: between Paris Austerlitz and Pont de Rungis from 04/05 to 29/05:
    Period: evenings.
    Dates: from Monday the 4th to Friday the 29th of May (excluding Saturdays, Sundays, public holidays, and Friday May 15).
    Reason: railway network works.
  • RER C: between Javel and Versailles-Château/St-Quentin from May 4 to May 29:
    Period: evenings.
    Dates : from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday, May 15).
    Traffic is suspended between Javel and Versailles Château/St-Quentin:
    - Last departure from Javel to St-Quentin at 23:02
    - Last departure from Javel to Versailles Château at 23:11
    - Last departure from Versailles Château at 22:25
    - Last departure from St-Quentin at 22:40
    Detour: line N or city buses 169 or 171
    Reason : works on the railway network.
  • RER C: between Avenue Henri Martin and Pontoise, from May 4 to May 29:
    Period: evenings.
    Dates: from Monday 4 to Friday 29 May (excluding Saturdays, Sundays, holidays and Friday 15 May)
    Traffic is suspended between Avenue Henri Martin and Pontoise:
    - Last departure from Avenue Henri Martin at 21:40
    - Last departure from Pontoise at 21:58
    Report: Line H or replacement bus, metro, trams or city bus.
    Reason: works on the railway network.
  • RERC: Juvisy–Dourdan / St-Martin d'Étampes. 8-9-10-14-15-16-17-30-31/05 :
    Period: All weekend through Sunday 5 p.m.
    Dates: from 8 to 10 May, from 14 to 17 May, from 30 to 31* May.
    Train traffic is suspended between Juvisy and Dourdan and Saint-Martin d'Étampes.
    A replacement bus service will operate, servicing the intermediate stations.* Special note: on Sundays May 10, 17 and 31, trains are scheduled to resume from 5 p.m.
    Reason: rail network works.
  • RER C: Pont de Rungis and Massy-Palaiseau May 16–17 and May 30–31:
    Period : All weekend.
    Dates : May 16-17 and May 30-31.
    Traffic is suspended between Pont de Rungis and Massy-Palaiseau.
    Some trains will terminate or originate at Orly station. A replacement bus service is running between Pont de Rungis and Massy-Palaiseau.
    Reason : railway works.
  • RERC: Juvisy-Dourdan/St-Martin d'Étam. 8-9-10-14-15-16-17-30-31 May:
    Period: All weekend long until 5 p.m. on Sundays.
    Dates: from 8 to 10 May, from 14 to 17 May, from 30 to 31 May.
    Traffic is suspended between Juvisy and Dourdan and Saint-Martin d'Étampes.
    A replacement bus service is in operation, with stops at intermediate stations.* Special note: on Sundays May 10, 17 and 31, train service is scheduled to resume from 5 p.m.
    Reason: railway works.
  • RER C: Between Avenue Henri Martin and Pontoise, May 4–29:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excludes Saturdays, Sundays, public holidays, and Friday, May 15).
    Traffic is suspended between Avenue Henri Martin and Pontoise: 
    - Last departure from Avenue Henri Martin at 9:40 PM
    - Last departure from Pontoise at 9:58 PM. Report: Line H or replacement bus, metro, trams or city bus.
    Reason: works on the rail network.
  • RER C: between Dourdan and Paris Austerlitz, from May 4 to May 29:
    Period: Evenings. Dates: from Monday the 4th to Friday May (excluding Saturdays, Sundays, holidays and Friday May 15). Traffic is suspended between Dourdan and Paris Austerlitz:
    - Last departure from Dourdan 21:07
    - Last departure from Paris Austerlitz at 21:17
  • RER C: between Paris Austerlitz and Pont de Rungis, from 04/05 to 29/05:
    Period : evenings.
    Dates : from Monday 4 to Friday 29 May (excluding Saturdays, Sundays, holidays, and Friday 15 May).
    Reason : maintenance work on the rail network.
  • RER C: between Paris Austerlitz and Juvisy, from 04/05 to 29/05.
    Period : evenings.
    Dates : from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays and Friday, May 15).
    Traffic will be suspended between Paris Austerlitz and Juvisy:
    - Last departure from Juvisy at 22:29
    - Last departure from Paris Austerlitz at 22:36
    A replacement bus service will operate, serving the intermediate stations.
    Reason : railway works.
  • RER C: between Saint-Martin-d'Étampes and Paris Austerlitz from May 4 to May 29:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, public holidays, and Friday, May 15).
    Rail traffic is interrupted between Saint-Martin d'Étampes and Paris Austerlitz:
    - Last departure from Saint-Martin d'Étampes at 21:41
    - Last departure from Paris Austerlitz at 22:31
    A replacement bus service is provided, stopping at the intermediate stations.
    Reason: railway works.
  • RER C: between Javel and Versailles-Château/St-Quentin from 04/05 to 29/05:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, public holidays, and Friday, May 15).
    Traffic will be interrupted between Javel and Versailles Château/St-Quentin:
    - Last departure from Javel to St-Quentin at 23:02
    - Last departure from Javel to Versailles Château at 23:11
    - Last departure from Versailles Château at 22:25
    - Last departure from St-Quentin at 22:40
    Alternative: line N or bus 169 or 171
    Reason: works on the railway network.
  • RER C: Between Avenue Henri Martin and Pontoise, from May 4 to May 29:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday, May 15)
    Traffic is interrupted between Avenue Henri Martin and Pontoise: 
    - Last departure from Avenue Henri Martin at 9:40 PM
    - Last departure from Pontoise at 9:58 PMReport: line H or replacement bus, metro, trams or city bus.
    Reason: works on the railway network.
  • RER C: between Javel and Versailles-Château/St-Quentin from May 4 to May 29:
    Period: evenings.
    Dates : from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, public holidays, and Friday, May 15).
    Traffic is suspended between Javel and Versailles Château/St-Quentin:
    - Last departure from Javel to St-Quentin at 23:02
    - Last departure from Javel to Versailles Château at 23:11
    - Last departure from Versailles Château at 22:25
    - Last departure from St-Quentin at 22:40
    Alternate: line N or city bus 169 or 171
    Reason: works on the rail network.
  • RER C: between Saint-Martin-d'Étampes and Paris Austerlitz from May 4 to May 29:
    Period: evenings.
    Dates: from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday, May 15).
    Rail traffic is suspended between Saint-Martin d'Étampes and Paris Austerlitz:
    - Last departure from Saint-Martin d'Étampes at 21:41
    - Last departure from Paris Austerlitz at 22:31
    A replacement bus service will operate, stopping at the intermediate stations.
    Reason: rail network works.
  • RER C : between Paris Austerlitz and Juvisy from May 4 to May 29. :
    Période : evenings.
    Dates : from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, holidays, and Friday May 15)
    Traffic will be interrupted between Paris Austerlitz and Juvisy:
    - Last departure from Juvisy at 22:29
    - Last departure from Paris Austerlitz at 22:36
    A replacement bus service will be provided, stopping at the intermediate stations.
    Motif : railway works.
  • RER C: between Paris Austerlitz and Pont de Rungis, from May 4 to May 29:
    Period : evenings.
    Dates : from Monday, May 4 to Friday, May 29 (excluding Saturdays, Sundays, public holidays, and Friday, May 15).
    Reason : railway network works.
  • RER C: between Dourdan and Paris Austerlitz, from May 4 to May 29:
    Period : Evenings. Dates: from Monday the 4th to Friday May (excluding Saturday, Sunday, holidays, and Friday May 15). Rail traffic is suspended between Dourdan and Paris Austerlitz:
    - Last departure from Dourdan at 21:07
    - Last departure from Paris Austerlitz at 21:17
  • RERC: Juvisy-Dourdan / St-Martin d'Étam. May 8-9-10, 14-15-16-17, 30-31:
    Period: All weekend until 5 p.m. on Sundays.
    Dates: from May 8 to 10, from May 14 to 17, and from May 30 to 31*.
    Train traffic is suspended between Juvisy and Dourdan and Saint-Martin d'Étampes.
    A replacement bus service is in operation, stopping at intermediate stations.* Special note: on Sundays May 10, 17 and 31, train services are set to resume from 5 p.m.
    Reason: railway works.
  • RER C: Pont de Rungis and Massy-Palaiseau, May 16–17 and May 30–31:
    Period: All weekend.
    Dates: May 16-17 and May 30-31.
    Rail traffic is suspended between Pont de Rungis and Massy-Palaiseau.
    Some trains terminate or originate at Orly station.
    A replacement bus service is in operation between Pont de Rungis and Massy Palaiseau.
    Reason: railway works.
  • RER C: Juvisy–Dourdan / Saint-Martin-d'Étampes. May 8-9-10, 14-15-16-17, 30-31:
    Period : Throughout the weekend, with service suspended until 5 p.m. on Sundays.
    Dates : from May 8–10, from May 14–17, and from May 30–31.
    Rail traffic is suspended between Juvisy and Dourdan and Saint-Martin d'Étampes.
    A replacement bus service will operate, stopping at intermediate stations.* Note: on Sundays May 10, 17 and 31, train traffic will resume from 5 p.m.
    Reason : rail network works.

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