Paris and Île-de-France Public Transport to Face Week-Long Disruptions for Modernization Work

Extensive Modernization Projects Underway

Public transportation networks in Paris and the Île-de-France region are set for a week of significant disruptions from Monday, February 9, to Sunday, February 15, 2026. These interruptions are due to ongoing scheduled modernization work by operators RATP and SNCF, impacting metro, RER, Transilien, and tram lines. The extensive overhaul projects aim to enhance the reliability and efficiency of the network, with a total investment of 3.8 billion euros planned for 2026.

Metro and Tram Line Impacts

Several metro and tram lines will see service adjustments during this period:

• Metro Line 1: Service will be suspended along the entire line every Sunday from 10 PM until February 15, affecting travel on Sunday, February 9.
• Metro Line 12: Similar to Line 1, service will be suspended every Sunday from 10 PM until February 15 due to modernization efforts, impacting Sunday, February 9. Additionally, Line 12 will experience closures after 10 PM 'two to three times a week' from January to June.
• Tram T1: Service remains suspended between Asnières-Quatre Routes and Gare de Saint-Denis, with disruptions expected to continue until summer 2026 due to third-party damage.
• Tram T4: The entire line will see traffic interruptions starting from 9:15 PM, from February 9 to March 13, with replacement bus services provided.

RER and Transilien Service Adjustments

Commuters on the RER and Transilien networks should also anticipate changes:

• RER B: Nightly closures will occur from 10:45 PM between Châtelet – Les Halles and Aéroport Charles de Gaulle 2 – TGV / Mitry – Claye as part of a lengthy maintenance campaign extending through May. Replacement bus services will operate from Gare du Nord.
• RER C: The line will experience significant outages throughout the week and on weekends. Specific interruptions are planned between Champ de Mars and Saint-Quentin/Versailles Château during the weekend of February 14-15.
• RER D: New daytime interruptions are scheduled during the week.
• Transilien Lines J, K, N, and P: These lines are expected to face particularly significant service disruptions over the weekend of February 14-15.
• Transilien Line J: From Tuesday to Friday, starting at 10:40 PM until February 13, service will be interrupted between Mantes-la-Jolie and Asnières-sur-Seine via Poissy. Weekend disruptions are also expected between Paris Saint-Lazare and Vernon from Saturday 12 PM to Sunday 4 PM.
• Transilien Line H: Traffic will be suspended on weekends between Épinay-Villetaneuse and Ermont-Eaubonne until February 22.
• Transilien Line N: Nightly interruptions are anticipated between Paris Montparnasse and Rambouillet.
• Transilien Line P: Interruptions are scheduled between Paris Est and various destinations including Coulommiers, Meaux, Provins, and Château-Thierry.

Traveler Information and Recommendations

Authorities strongly advise all travelers to check their schedules in advance and allow for extra travel time. Real-time updates can be accessed through official applications such as Bonjour RATP and SNCF Connect, as well as on the RATP's live traffic information page. Replacement bus services will be implemented on many affected sections to mitigate the impact of the disruptions.