Modernisation

Ongoing and Upcoming Works

Find all the information about ongoing and upcoming works on the metro, tramway and RER lines on this page.
Last modified on 1 September 2026
1 min read

Summary

  1. Metro
  2. RER

Regular maintenance work and service disruptions take place across the Île-de-France Mobilités transport network in Paris and the Île-de-France region. The aim? To maintain the tracks and modernise transport infrastructure.

In 2026, several metro, tram and RER lines operated by RATP are affected by modernisation works. Find all the information for each affected line below.

Metro

RER

Information on works affecting the RERrer ligne Crer ligne Drer ligne Elines is available on the Île-de-France Mobilités website.

This page is updated regularly to reflect the latest works and line closures.

Modernisation
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Ongoing and upcoming work
Find information about ongoing and upcoming work on your metro, tramway, and RER lines.
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