Railway disruptions begin in Val-d’Oise

Starting Monday, November 2, several railway lines in the Val-d’Oise department will face evening interruptions due to construction work. The affected lines include RER A heading to Cergy-le-Haut, RER C departing from Pontoise, and the H and J lines of the Transilien network. Disruptions are scheduled after rush hour and may impact late workers, students, and travelers needing to transfer between lines.

RER A experiences evening closures

Trains on the RER A will be interrupted from 9:50 PM between Maisons-Laffitte and Cergy-le-Haut on weeknights until November 6. Replacement buses are available during this period. This closure affects travel between the Cergy-Pontoise area and the western Île-de-France railway network. Travelers should verify their routes, especially if changing trains is necessary.

Line J faces nighttime interruptions

Line J will have nighttime disruptions from November 2 to November 13. Traffic will be interrupted from 9:45 PM between Argenteuil and Pontoise or Conflans-Sainte-Honorine on weeknights. Replacement buses are provided. Residents using Pontoise axis stations to reach Paris-Saint-Lazare should be aware of this earlier disruption compared to the one on line H.

RER C has extended evening closures

The RER C will experience evening interruptions between Pontoise and the avenue Henri-Martin as part of a larger construction plan. The official schedule shows the last departure from Pontoise at 9:58 PM and from avenue Henri-Martin heading to Pontoise at 9:41 PM. These disruptions affect weeknights until December 18, excluding holidays. Travelers should compare these times with their specific itineraries.

Line H has multiple closure periods

On line H, construction work begins on Monday, November 2, with evening closures between Ermont-Eaubonne and Persan-Beaumont via Valmondois. The closure starts around 11:30 PM and lasts until November 13, excluding November 11, which is a holiday. Replacement buses will serve all affected stations. Residents in the Oise valley and towns between Ermont and Persan must plan for road transport during these times.

Additional closures on line H

Line H will also have another closure from November 16 to November 20 between Épinay-Villetaneuse and Ermont-Eaubonne. Additional work is scheduled from November 23 to November 27 on the branches of Luzarches and Persan-Beaumont via Montsoult-Maffliers. Disruptions vary by sector and date throughout the month, and a closure on one branch does not necessarily impact the entire line.

Disruption times vary by line

The start times of disruptions differ across lines, ranging from approximately 9:40 PM to 11:30 PM. These variations may make usual railway transfers difficult before the end of service on other lines. Replacement buses on lines A, H, and J are available, but their routes and times must be checked for each trip. Travelers can use Transilien’s trip planning tools, which include work schedules, personalized times, and itineraries with disruptions. The information provided for the specific day and time of departure remains crucial, especially for late returns to Cergy-le-Haut, Pontoise, and Persan-Beaumont.