Lausanne–Renens: engineering work on the flyover.

The flyover between Prilly-Malley and Renens is one of our most impressive structures. 

It combines durability and strength, integrating seamlessly into the urban environment. Its purpose is simple: to allow trains to pass over other railway tracks without interrupting other transport routes. 

All about the project

We would like to warn you, as a resident affected by this construction work, about occasional disruptions by giving you regular updates. You can read our calendar and our news updates to find out about upcoming work. 


  • 2017 – planning permission
  • October 2017 – start of construction
  • December 2021 – start of operations

Engineering work updates.

We are currently carrying out the following work:


From Renens to Prilly-Malley around the railway tracks 


We are currently building the flyover section-by-section. Each part is made from concrete and connected to the others. 90% of the flyover is scheduled to be complete by the end of 2019. Most of the work will be carried out during daytime hours.


June to December 2019

Further content