The French rail operator SNCF is taking advantage of the three-day weekend created by the public holiday on Friday, November 1st (Toussaint) to do some major modernisation works on the city's RER suburban train network. On the RER line B there will be no trains at all between Aulnay-sous-Bois and Charles de Gaulle airport from Friday, November 1st to Sunday, November 3rd inclusive. The RER lines A,C, L, J and N will all have complete closures on sections of the line, with bus replacement services on offer. On the RER line B the works include extra storage space to allow for construction of the 'Charles de Gaulle Express' service which is planned for 2025. You can see the full list of closures and replacement services here.

Source: The Local October 30, 2019 09:22 UTC