Service provided by the RER A commuter train in Paris will be suspended between La Défense and Nation stations from July 28 through August 26, due to annual maintenance work. During the scheduled maintenance, RER A service will be suspended at Charles de Gaulle-Etoile, Auber, Châtelet-Les Halles, and Gare de Lyon stations; La Défense and Nation will serve as temporary terminuses.
Furthermore, outside of Paris service will be suspended along the RER A line between Maisons-Laffitte and Poissy stations during the same period.
The RER A is the busiest commuter line in Europe.
Individuals in the Paris region are advised to check their itinerary prior to departure and allow for extra time to reach their destinations.