Paris T12 tram-train (Photo Jeremie Anne) (11)

FRANCE: Ile-de-France tram-train line T12 opened on December 9, on a 20 km orbital route between Massy-Palaiseau RER station and Évry-Courcouronnes RER station to the south of Paris.

The 10 km from Massy-Palaiseau to Epinay-sur-Orge shares tracks with long-distance and freight trains, and has a maximum speed of 100 km/h and the national rail network’s left-hand running.

The 10 km tramway section from Epinay-sur-Orge to Évry-Courcouronnes has a 70 km/h maximum speed and the road network’s right-hand running. This section has three major bridges over motorways.

The Système de Transmission Bord-Sol safety system and 1·5 kV DC electrification is used throughout.

Paris T12 tram-train (Photo Jeremie Anne) (1)

There are 16 stops, of which 11 are newly built and five have been rebuilt from existing stations on a section of the Grande Ceinture Sud which was previously served by Paris RER Line C, with the track raised to provide level boarding.

The Massy – Versailles section of Line C is now designated as Line V, operated as a shuttle with four Line C trainsets.

T12 has interchanges with RER lines B and V at Massy-Palaiseau, Line C at Epinay-sur-Orge and Line D at Évry-Courcouronnes.

The €689m T12 project was funded by the Ile-de-France région (56%), the national government (30%), the Essonne département (10%) and SNCF (4%).

Construction of the tramway section was undertaken by a consortium of TSO, Terideal and Alstom.

Paris T12 tram-train (Photo Jeremie Anne) (9)

Ile-de-France Mobilités funded a €165m order for 25 Alstom Citadis Dualis tram-trains. These are 42 m long and 2 650 mm wide with a capacity of 250 passengers, and have information screens, 36 USB ports, air-conditioning and CCTV. They operate in pairs.

The line is operated by the Transkeo T12-T13 joint venture of Keolis (51%) and SNCF Voyageurs (49%), which has 130 operating and maintenance staff and is responsible for maintaining the tramway section of T12. The depot and control centre are located at Massy.

Paris T12 tram-train (Photo Jeremie Anne) (4)

Services initially run every 12 min in the peaks and every 30 min off-peak, with an increase to every 10 min in the peaks and 15 min off-peak planned. The end-to-end journey time is 40 min. There are distance-based fares, and Paris t+ tickets are not accepted.

An extension of T12 from Massy to Versailles-Chantiers has been proposed for the long-term future.