| LINE | Name | Country | City | Regional Rail | |||
| Line 4 to Montrouge | FR | Paris | No | ||||
| CONSTRUCTION DETAILS | Start year | End year | Length (in km) | Tunnel (in km) | Tunnel | Stations | Source |
| 2008 | 2013 | 1.5 | 1.5 | 100% | 1 | Media | |
| COST INFORMATION | Cost (in M) | Currency | PPP rate | Year PPP | Real cost (in M$) | Cost/km (in M$) | Source |
| 185.3 | EUR | 1.3 | 2010 | 240.9 | 160.6 | Media | |
| REFERENCE | https://france3-regions.francetvinfo.fr/paris-ile-de-france/2013/03/22/ligne-4-montrouge-se-met-sur-les-rails-220977.html | ||||||
| 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. |
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| Go to Paris city page. | |||||||
