🔊 Latest News! UNISIG Publishes New Version of Subset-150

UNISIG, the UNIFE committee and technical body responsible for developing, maintaining and updating the ERTMS and CCS/TMS technical specifications, has published a new version of Subset-150, which sets out UNISIG’s vision for the future evolution of the on-board CCS architecture, detailing the various steps leading up to the target architecture.

The document explains the conditions under which the system should evolve. It also describes UNISIG’s position on specific innovative elements of the architecture and suggests improvements to the legal framework for certification and authorisation — all with the aim of facilitating the deployment and maintenance of the on-board CCS subsystem.

Subset-150 will support the work of the relevant committees.

Access the subset here: https://www.ertms.net/wp-content/uploads/2025/11/SUBSET-150.pdf