Discover the project

Thanks to larger buses and dedicated lanes on most of the line, the Tzen 4 will offer comfortable and efficient journeys. It will replace line 402 over 14 km between "La Treille" in Viry-Chatillon and the Corbeil-Essonnes RER station, the busiest section of the outer suburbs. The Tzen 4 is a world first: it will be the first 24-metre, 100% electric bi-articulated bus, with a ground recharge in less than 5 minutes.

Plus confortable

24-metre buses that can accommodate 140 people (compared to 100 people on the current 402 buses)

Plus performant

Dedicated bus lanes and priority at intersections, a bus every 5 minutes during rush hour

Plus respectueux de l'environnement

100% electric buses, with innovative ground-based charging, in less than 5 minutes

Tzen 4 - Albert Camus station in Ris-Orangis (development intentions) — Tzen 4 - Station Albert Camus à Ris-Orangis (intentions d'aménagements)

A line that supports the development of the territory

The Tzen 4 will welcome more than 40,000 passengers per day. It accompanies :

population and employment growth (+18% for the population and +3% for jobs)
an increase in commuting, particularly to or from Évry-Courcouronnes
an increase in the travel of students and young schoolchildren
a service to the main projects in the area: rehabilitation of the Tarterêts district in Corbeil-Essonnes, Grigny city centre ZAC, urban renewal of the Grande Borne in Grigny, redevelopment of the Agora in Évry-Courcouronnes, etc.

The districts served

The territory has many urban renewal projects: creation of concerted development zones (ZAC), new districts, urban renewal projects (PRU). The Tzen 4 will serve the new housing and equipment sectors in order to reach the maximum number of inhabitants and employees. Thus, it will cross the Grande Borne district and the ZAC Centre-ville in Grigny, the Plateau and Canal districts in Évry-Courcouronnes, the Centre Hospitalier Sud Francilien and the ZAC de la Montagne des Glaises in Corbeil-Essonnes, etc.