This project involves infrastructure work on the third section of Line 15 between Pont-de-Sèvres and Villejuif-Louis Aragon.
- Length: 12 km
- 8 passenger stations with an average depth of 36 m
- 12 related works (shafts) with an average depth of 40 m
- 3 tunnellers
- 12 towns connected in 2 departments (Hauts-de-Seine and Val-de-Marne).