||Sections of the line constructed in trench are represented with the same line style as the at-grade sections.
The project maps are based on information retrieved from OpenStreetMap and our research. Please contact us if you have more accurate information regarding this project.
* Tunnel to open in 2022, further surface improvement in 2024.
** Excluding surface improvements; with surface improvements, the cost irss to 3,800 million. See up-to-date info at https://www.hauts-de-seine.fr/mon-departement/les-hauts-de-seine/les-grands-projets/les-infrastructures-de-transport/metros-et-rer/eole-le-prolongement-du-rer-e and https://www.iledefrance-mobilites.fr/le-reseau/projets/rer-e-prolongement-saint-lazare-mantes-la-jolie.