Transport in Île-de-France: Upcoming Works and Closures

From Monday, November 3 to Sunday, November 9, 2025, several metro, RER, and Transilien lines in Paris and the Île-de-France region will experience major disruptions due to ongoing modernization efforts on the networks operated by RATP and SNCF.

After a quieter period, essential upgrades resumes, causing service interruptions and replacement buses on many routes. Travelers are advised to check the official RATP and SNCF Connect apps before traveling. The Île-de-France Mobilités website also provides real-time alternative options.

RER C Closure Following Fire at Les Invalides Station

Les Invalides station on the RER C in Paris remained closed until 10 a.m. on Monday, November 3, 2025, due to a fire in a technical room on November 2, 2025. Replacement buses served most affected lines during this period.

"Replacement buses will be provided on most of the affected lines. For more information, visit the official websites of RATP, SNCF Transilien, and Île-de-France Mobilités."

To avoid unexpected delays, plan your trips carefully this week as transport in the region will be significantly affected by these modernization projects.

Summary: Ongoing modernization in Île-de-France networks causes widespread transport disruptions November 3–9, 2025, including a fire-related closure at Les Invalides station on RER C, making trip planning essential.

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Sortir à Paris — 2025-11-03