LINE Name Country City Regional Rail
RER E extension FR Paris Yes
CONSTRUCTION DETAILS Start year End year Length (in km) Tunnel (in km) Tunnel Stations Source
2018 2022* 8.0 8.0 100% 2 Wiki
COST INFORMATION Cost (in M) Currency PPP rate Year PPP Real cost (in M$) Cost/km (in M$) Source
1800.0** EUR 1.3 2012 2340.0 292.5 Media
NOTES 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 and
Go to Paris city page.