Île-de-France Mobilités and RATP issued an exceptional traffic bulletin for Thursday, 15 October 2026, detailing more than 30 separate engineering works, timetable reductions and demonstration-related service changes across the Metro, RER and Transilien networks. The RER B—the only direct rail link to Charles-de-Gaulle Airport—remains subject to night-time closures after 22:45 between Châtelet-Les-Halles and CDG 2 TGV as part of the long-running signalling renewal programme. On the RER D, a chronic shortage of rolling stock following a maintenance-facility fire in August has forced the operator to cut frequency during peak hours by up to 25 %. Weekend closures north of Stade de France continue to divert travellers onto the already saturated Line H and the T8 tram. Metro Line 8’s République station is closed for a nine-month renovation, pushing additional footfall onto Line 11 and bus corridors used heavily by tourists. Thursday’s bulletin also lists multiple highway and tunnel closures, including overnight works on the A4 motorway toward Disneyland Paris and lane reductions on the périphérique for the taxi protest converging on CDG. Travellers connecting between Orly and La Défense face longer journeys because of simultaneous works on the RER C and tram T9 corridors. For mobility managers and relocating staff, the practical impact is twofold: (1) travel times between central Paris and key business districts may increase by 20-40 minutes throughout the day, and (2) the last outbound RER B to CDG currently departs Châtelet at 22:42, after which only replacement buses operate. Employers should audit evening flight itineraries and, where possible, re-book staff onto earlier departures or arrange hotel overnights near the airport. Looking ahead, RATP says the RER B nocturnal shutdowns will last until at least 31 December 2026. Companies planning large meetings in Paris during the fourth quarter should budget for private coach transfers or allow longer connection windows. The bulletin underscores how infrastructure modernisation, while necessary for long-term capacity, is generating short-term friction for international mobility into and out of France’s primary economic hub.
Source: Sortir à Paris
