T ZEN 5 dedicated bus lane: Choisy-le-Roi

By 2021, the T Zen 5 bus line will connect Paris (13th arrondissement) with Choisy-le-Roi. The T Zen 5 will serve four districts: Paris (13th), Ivry-sur-Seine, Vitry-sur-Seine and Choisy-le-Roi.

The T Zen 5 project is designed to keep pace with urban development in Paris and the Val-de-Marne area west of the Seine. This innovative transport mode will help revitalise the districts it serves and will participate in their transformation.

In the longer term, the Île-de-France masterplan provides for the extension of metro M10, first to Ivry-sur-Seine and then to Ardoines (M15 and RER C).

These two projects fit within a fast-changing region that includes the Paris Rive Gauche joint development zone (ZAC) in the 13th arrondissement of Paris, and the Ivry Confluences joint development zone (ZAC) in Ivry-sur-Seine.

The T Zen 5 will serve a fast-changing area. When service starts up in 2021, the line is expected to serve 38,000 passengers each day, increasing to 51,000 passengers each day by 2030.

Useful information :

  1. Départements 75 and 94

  2. Connections with RER C / M14 / T3

  3. Future connections with M15


  • Creation of a public transport line serving Paris, Ivry, Vitry and Choisy.
  • Connections with existing or future lines: metro M10 and 14, SNCF rail, RER C, TVM (Trans Val de Marne), numerous bus lines, notably the 393, and the future Grand Paris Express Line 16.

Service quality

  • Regular, reliable service thanks to dedicated bus lanes and priority at traffic lights.
  • Accessible for all: specific amenities to facilitate station access for persons with reduced mobility, including wide sliding doors and step-free access from the platform to the T Zen.
  • Buses will circulate from 5 a.m. to 12 a.m. at frequent intervals.
  • Real-time passenger information, both visual and audio, in stations and on board the T Zen.

Key figures

A total of 19 bus stops with a travel time of 33 minutes from one end of the line to the other.


  • 21 May - 30 June 2013: consultations
  • October 2015: approval of the project’s functional diagram
  • 2017-2018: pre-project draft design studies and project studies
  • 2019-2021: construction work
  • 2021: start-up of service

• Download the leaflet on the project [This content is not available in English]