Milan Node Improvements

On 31 March 2025, with the Site Supervision of Italferr, work began on the R1367-A2024 contract for upgrading the train spacing systems operating within the Milan Railway Node, preliminary to the superimposition of the ERTMS/ETCS L2 system, albeit limitedly to operations in the Piazzale Area Sud yard.

The overall block upgrade project includes the following macro-activities, covered by 4 different contracts:

• The ACCM 2 upgrade at the Satellite Command Post (PCS) of Milano Greco Pirelli
• The construction of the new Peripheral Part (PP) of the Computer-based Interlocking System (ACC) at the Bivio Lambro junction, included within the Multi-station Command and Control System (SCC-M) of the Milan Node and simultaneous decommissioning of the current Peripheral Part (PP) of the Itinerary-based Central Electronic Interlocking (ACEI) system.
• The construction of the new Peripheral Part (PP) of the Computer-based Interlocking System (ACC) at the Trecca signalling control post (PM), included within the Multi-station Command and Control System (SCC-M) of the Milan Node and simultaneous decommissioning of the current Peripheral Part (PP) of the Itinerary-based Central Electronic Interlocking (ACEI) system.
• Replacement of the existing electromechanical Automatic Track Block with Coded Track Circuits (BAcc) with a new coded signal Two-way Automatic Block system (continuous signal repeater – RSC – emulation), maintaining the number of sections unchanged along the stretches.
• Interfacing of the Milano Rogoredo station with vital I/Os on the existing automatic blocking system for the installation of a new type of automatic blocking system.

The “integrated” contract, awarded to Pavani Segnalamento Ferroviario featured an intense executive design phase and subsequent validation by the Type B Inspection Body of Italferr.

The Project provides for five activation phases, two for activating the new Peripheral Parts (PP) of the Computer-based Interlocking System (ACC) without impacting on the Computer-based Interlocking System (ACC) of Milano Lambrate, while the other phases will also involve the reconfiguration of the Milano Lambrate system, whose inertial status for this project is that of a plant already upgraded to a Computer-based Interlocking System (ACC).