The A22 is one of the main transport routes between the Po Valley and Central Europe. The motorway forms part of the A1 motorway network and extends to the national border, connecting Modena to the Brenner Pass and continuing on into Austria andGermany. The motorway is 314 kilometres long and crosses through four Italian regions: Emilia-Romagna, Lombardy, Veneto and Trentino-Alto Adige/South Tyrol, playing a strategic role in the movement of people and goods along the north-south European corridor.
There are 30 single-tube tunnels along the A22, for a total length of approximately 12.6 km. Four twin-tube tunnels are over 500 metres long: Brenner, Fortezza, Bolzano (Virgolo Tunnel) and Trento (Piedicastello Tunnel).
The tunnels are subject to ongoing structural and systems upgrades, as well as research and testing, with the aim of ensuring the highest safety standards and of preventing risks to people, the environment and the infrastructure itself.
