Île-de-France tramway Line 9

The main goal of the project is to desaturate existing transit lines, and in particular RATP bus route 183 (Porte de Choisy - Aéroport d'Orly Terminal Sud) which became the second busiest bus route in the Île-de-France region after route TVM, and to propose a public transport offer with more capacity, better performance, more regularity and more comfort, thanks to the adoption of a tramway.[3] Additional project objectives are to accompany the evolution and development of a fast-changing suburban environment, the encouragement of sustainable mobility, better links between existing transit infrastructures and the refiguration of roads and public spaces (introduction of bike lines along the tram alignment, more accessible walking paths, etc.).[3]

Future tram line 9 will offer connections to line T3a and Paris Métro Line 7 at Porte de Choisy Paris Métro station, with RER C at Choisy-le-Roi station and, at Orly, at Les Saules station, with Paris Métro line 15, part of the Grand Paris Express, at Vitry Centre, and with various bus routes including routes TVM and 393 at Choisy-le-Roi.