Network modernisation

RER A: upcoming closures

RER A line will be interrupted from August 9 to 18, between the Nation and Val de Fontenay / Fontenay-sous-Bois stations, and from August 5 to 20 between the Cergy-Le Haut and Conflans–Fin d’Oise stations.

Because of infrastructure maintenance works, RER A will be closed all day :

  • from August 9 to 18, 2023 inclusive, between Nation and Val de Fontenay / Fontenay-sous-Bois
  • from August 5 to 20, 2023 inclusive, between Cergy–Le Haut and Conflans–Fin d'Oise

Alternate buses and routes will be made available during these disruptions.

schéma de perturbation pour les travaux d'été du RER A

Do not hesitate to consult the route simulator set up on the RER A blog to better anticipate your journeys.

To find out more about this works, discover the dedicated article on the RER A blog.

More information

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To anticipate your journeys and know your journey time, consult the route search.