Grand Paris Express Line 15 West Lot 2 (Pont de Sèvres–Saint-Denis)

Project overview

Linking the La Défense business district to Saint-Denis Pleyel, this 22.4 km automated line features 11 major interchanges. The Société du Grand Paris targets a 26-minute journey time between terminuses, nearly halving current travel durations for thousands of commuters. Construction for this western segment is underway, with the full line expected to open in 2031.