Île-de-France railways currently under construction. New rail routes, line extensions and infrastructure upgrades — active build projects across the network.
Île-de-France railway lines currently under active construction: new routes, extensions to existing lines and major rail infrastructure upgrades. Includes new high-speed corridors, electrification projects, double-tracking schemes and regional line extensions. Data tagged in OpenStreetMap by contributors on the ground, reflecting what is physically being built on the railway network.
Île-de-France currently has 163 railway segments under construction including 58 railway, 58 tram, 42 metro and 5 light rail.
Data: OpenStreetMap contributors
Last update: 2026-04-07