Paris Métro Line 15

Paris Métro Line 15 is one of four lines of the Grand Paris Express. It is planned to open in phases from 2020 through 2030. It aims at creating a loop connecting Noisy - Champs to Champigny, notably passing through Champigny-sur-Marne, Créteil, Villejuif, La Défense, Saint-Denis and Rosny-sous-Bois.

Conceived as a subterranean rail line equivalent in capacity to the Parisian métro, it will constitute a new relief line servicing the departments of Hauts-de-Seine, Val-de-Marne and Seine-Saint-Denis. It will enable direct transportation between the suburbs, bypassing Paris and thus avoiding transloading.