BUILD YOUR OWN
RESOURCE LIBRARY
Île-de-France Mobilités launches bus rapid transit line
A new generation electric bus will connect Viry-Châtillon to Corbeil-Essonnes in the Paris region and forms part of a larger urban redevelopment programme.
At a glance
Who: Île-de-France Mobilités.
What: Île-de-France Mobilités has announced a bus rapid transit line served by the Tzen 4 electric bus to connect Viry-Châtillon to Corbeil-Essonnes in the Paris region.
Why: The existing connecting bus service between Viry-Châtillon and Corbeil-Essonnes is the busiest line in the outer suburbs and the current buses were no longer sufficient to absorb the growing demand from passengers.
When: Line 4206 is being gradually replaced by the Tzen 4 from 10 February 2026.
Île-de-France Mobilités has announced a bus rapid transit line served by a new generation electric bus will connect Viry-Châtillon to Corbeil-Essonnes in the Paris region.
It will offer a more regular service to more than 47,000 passengers per day and is part of a much larger urban redevelopment project.
Growing passenger demand
The line will be served by the bi-articulated Tzen 4 electric bus and will feature dedicated lanes with ground-level electric charging.
In Essonne, bus line 4206 (ex 402) which connects Viry-Châtillon to Corbeil-Essonnes, is the busiest line in the outer suburbs. Often overcrowded and subject to heavy road traffic, Île-de-France Mobilités reports the current buses were no longer sufficient to absorb the growing demand from passengers.
To avoid delays and offer more comfort on board, line 4206 is being gradually replaced. The Tzen 4 will operate on 14km of redesigned infrastructure, with dedicated lanes over a large part of the route (line 4206 will continue to run every 15 minutes from Monday to Friday in addition to the Tzen 4).
Read More
The Tzen 4 measures 24 metres and can carry 140 passengers compared to 100 on the previous service. Five municipalities in Essonne are served by 30 stations: Corbeil-Essonnes, Évry-Courcouronnes, Ris-Orangis, Grigny and Viry-Châtillon. The project also includes the creation of 30 new stations with extended platforms, modern shelters and real-time passenger information.
The 100 per cent electric buses can reportedly be charged via the ultra-fast ground charging in less than five minutes using Alstom’s SRS system.
The optimised schedules are aiming for a bus every five minutes during peak hours and continuous service from 5am to 1am. It also provides connections with the RER D, Tram T12 and other local bus lines.
Often overcrowded and subject to heavy road traffic, Île-de-France Mobilités reports the current buses were no longer sufficient to absorb the growing demand from passengers
The new line is part of a large redevelopment project with public spaces having been redesigned with new squares, green spaces and cycle paths in the towns and villages along the route.
The route of the line serves neighbourhoods undergoing transformation, essential services and shops, and connects employment areas to homes to facilitate the daily lives of residents.
An investment of nearly €123m has been mobilised to create this new infrastructure, financed by the Île-de-France Region, the Essonne Department, the State and the European Union.
Why not try these links to see what our SmartCitiesWorld AI can tell you.
(Please note this is an experimental service)
How does the Tzen 4 electric bus improve passenger capacity and comfort?What are the benefits of dedicated lanes for the new bus rapid transit line?How does ultra-fast ground charging enhance the operation of electric buses?In what ways does the new bus line support urban redevelopment projects?How will the new bus schedules improve connectivity with other transport modes?Latest City Profile
SmartCitiesWorld Newsletters (Daily/Weekly)
You may also like these related articles...
BECOME A MEMBER
© 2026 SmartCitiesWorld
Smart Cities World Ltd, 27 Clements Lane, London, EC4N 7AE