Alstom, which has a €80m share of the project, will supply its ACC-M signalling system on the Rome Tiburtina - Orte, Ciampino - Colleferro, and Rome Casilina - Campoleone - Nettuno lines which are used by around 1200 trains per day, while it will suypply an Integrated Control and Security Centre to cover the entire Rome railway network.

Gemmo and M Pavani Segnalamento Ferroviario will install signalling and electrification, while Politecnica will design buildings and Ricci will carry out building construction.

The project is expected to be completed in spring 2017.