Le Rail Open Lab is a true experimental laboratory dedicated to transforming maintenance and operational practices for infrastructure and fixed installations through the rise of digital technology. It is through this partnership that SCLE SFE has been able to test and improve its latest innovation: the TCO Digital. Consisting of sensors and a data storage platform, this solution makes it possible to verify the compliance of the routes plotted for rapid train sets and to monitor the release of areas in open yards from the switching post or the supervision center. As a reminder, a high-speed train is a very long train that can extend over several kilometers and acts as a “rolling construction site” capable of performing the various steps necessary for track renewal.