Société du Grand Paris has contracted Alstom to supply, equip and commission the track, third power rail, and the linear equipment for the eastern segment, along with the viaduct of Line 18 of the upcoming Ile-de-France metro.

The deal is valued at $155.26m (€133m).

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

Line 18, an automatic metro track, will pass through the Saclay plateau, its education and research centres, connecting Versailles to Orly airport in 30 minutes.

Services between Massy-Palaiseau and the CEA/Saint-Aubin station are expected to commence in 2026, while the segment between Orly airport and Massy-Palaiseau is slated for 2027.

The scope of the contract covers the construction of 46km of single-track metro track, which will feature seven stations between Orly airport and the CEA/Saint-Aubin station.

Alstom will also monitor all studies, delivery, works and tests for the line, the third rail, the linear equipment for the eastern portion, as well as the viaduct of Line 18.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Furthermore, 50km of cable trays and 35km of pedestrian walkways will be added under the project.

Alstom France president Jean-Baptiste Eyméoud said: “After metro lines 15, 16 and 17, the Société du Grand Paris renews its confidence in Alstom’s expertise and experience in the field of tracklaying. Alstom thus becomes a major player in the construction of Line 18 of the future Paris metro, with this order and the one for the rolling stock and the automatic control system obtained earlier.”

This project will involve nearly 250 employees from Alstom’s Infrastructure France teams, both on the Line 18 worksite and at the Alstom site in Saint-Ouen.

Recently, Ile-de-France Mobilités and RATP selected Alstom to supply 37 Citadis X05 tramways for the T1-Line in the Ile-de-France region.

Railway Technology Excellence Awards - Nominations Closed

Nominations are now closed for the Railway Technology Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact across the defence sector.

Excellence in Action
MTR Corporation and Dragages Hong Kong triumphed in three categories – Research & Development, Environmental and Safety – for their Kwu Tung Station project . Learn how this future Northern Link–East Rail Line interchange sets new benchmarks in digital construction, decarbonisation and safety management.

Discover the Impact