Latest articles

ERTMS : the interoperable railway signalling system

ERTMS : the interoperable railway signalling system

ERTMS is the European Rail Traffic Management System. It is a safe system that offers train control by supervising the speed at any moment, thanks to track and train data. ERTMS is among the key elements to enhance rail interoperability within Europe and make it...

ATO over Lineside Signalling

ATO over Lineside Signalling

The european automatic driving system ATO over ETCS works associated with the european signalling system ERTMS/ETCS. For the complete solution to work, tracks must be equipped with ERTMS/ETCS. Problem : the rollout takes time and money, delaying the use of ATO over...



ATO over ETCS, also called ERTMS/ATO, is the system enabling automatic driving of the train in presence of a driver, while respecting the european signalling ERTMS/ETCS, and the timetable. What are the main principles of ATO over ETCS and its architecture ? Let's find...

Signaux BAL Longwy
Technologies (5) (credit Bastian SIMONI)


of Voie Libre

Voie Libre’s library, the one-stop shop for specifications and findings on Railway Control-Command and Signalling !

Here you will find publications, specifications and findings of the european working groups, on railway Control-Command and Signalling topics.


Green light for the modal shift !

So to fight against the climate change, and to reduce our fossil fuels consumption, we need to rethink Mobility. Railway transport, more than 200 years old, is definitively one of the solutions. The modal shift from air and road to rail will be one of the biggest challenges of the next decades.

Voie Libre is the French signal, meaning that the train is allowed to proceed. Voie Libre is also this blog, discussing about rail Tech and Experience, so to make the modal shift a success.

Modal Shift Voie Libre