Over the past year, an extensive plan to improve underpasses, tunnels and subterranean walkways in the urban area has been initiated. The plan included a series of activities to improve its quality, including cleaning the walls, renovating hydraulic drainage systems, restoring street signs, upgrading lighting, and cleaning and decorating operations in cooperation with Ama, the municipal environmental company.

Special attention was paid to cleaning the walls and restoring their colour, ensuring greater safety for motorists and pedestrians. 

Interventions were carried out in several areas, including:

• Galleria Ignazio Guidi (known as the Muro Torto), which also saw pavement improvements;
• Nuova Circonvallazione Interna (NCI orbital road), with pavement upgrading managed by Anas;
• Sassia underpass, also with pavement improvements;
• Galleria Giovanni XIII, on which a tutor-type speed control system has been installed;
• Galleria Fleming.

In total, about 8 kilometres of infrastructure, including underpasses and tunnels, were upgraded. This project contributes significantly to the improvement of local road infrastructure, increasing the safety and efficiency of road traffic.