Starting November 2, evening train services on lines N and U in Yvelines face interruptions due to maintenance and modernization projects.
Evening train disruptions begin November 2
Starting on Monday, November 2, 2026, evening train services on lines N and U in the Yvelines region will be reduced due to ongoing railway maintenance work. These changes will impact several key stations, including Versailles-Chantiers, Saint-Cyr, and La Verrière.Key segments affected on line U
Line U will face significant disruptions between its two termini, La Défense and La Verrière, on most weeknights from November 2 to November 30, excluding November 11. The last train from La Défense heading toward La Verrière will depart at 9:15 PM, while the last train from La Verrière heading toward La Défense will leave at 8:20 PM.Special arrangements on November 11
On November 11, the disruption on line U will only affect the direction from La Verrière to La Défense, with the last train departing La Verrière at 11:20 PM. This differs from the usual schedule and may require passengers to adjust their travel plans accordingly.Weekend disruptions on both lines
Both lines N and U will experience more extensive service interruptions during two weekends in November. On Saturday, November 14, the last departures on line U will be at 10:15 PM from La Défense and at 9:20 PM from La Verrière, while line N will have similar changes depending on the branch and direction of travel.Line N service interruptions vary by branch
On line N, the service to Rambouillet will be affected in the direction from Paris-Montparnasse to Rambouillet on weeknights from November 2 to November 30, excluding November 11. The last train in this direction will depart Paris at 11:35 PM. Additional interruptions will occur on specific Fridays, affecting both directions of travel.Other branches on line N have different schedules
From November 2 to November 6, evening services between Paris-Montparnasse and Dreux will be interrupted, with the last train departing Paris at 10:58 PM and Dreux at 9:55 PM. On the Plaisir-Grignon branch, the last departures will be at 11:05 PM from Paris and 11:11 PM from Plaisir-Grignon, depending on the date and branch.Weekend disruptions on line N
On November 21-22 and 28-29, line N will face additional interruptions between Paris-Montparnasse and Versailles-Chantiers. These disruptions will occur on both Saturday and Sunday, affecting different time slots. Line U will also experience similar interruptions during these periods, impacting the entire La Défense–La Verrière link.Reasons for the disruptions
The SNCF has stated that the service changes are due to maintenance and modernization efforts, including work related to the EOLE project. Local media, such as Infosyvelines, has highlighted the impact on residents in Trappes, particularly those relying on line U for evening travel.Checking replacement options and schedules
Travelers are advised to consult the traffic information pages for lines N and U, as well as the websites of Île-de-France Mobilités, Transilien, or SNCF Connect, to find replacement bus schedules and connection details. These resources will help passengers plan their journeys based on the specific station and date.
