The primary objective of the project was to renovate, upgrade and improve the safety of the Turbigo underpass, located between Via Giolitti and Via Marsala in the Termini Station area.

The work was conducted jointly by RFI and the Csimu Department, and focused on a 210-meter road section divided into two carriageways. The decision to renovate the underpass stemmed from the need to restore dignity to a vital road connection that had been neglected for years, affecting the safety of pedestrians, motorists and the rail infrastructure itself.

In the course of the project, special attention was given to restoring the infill between the pillars, while maintaining respect for the original layout, as suggested by the Special Superintendence of Rome. In addition, cleaning and sandblasting operations were carried out to remove graffiti and smog residue in order to increase light reflection on the travertine lining the underpass, indirectly increasing illumination by 25 percent.

Special attention was paid to the conservation of marble surfaces, with the use of materials and conservation techniques designed to preserve and protect the walls. Both the road surface and signage were also renewed, improving the appearance and safety of the entire underpass area.