South Tyrol One of the most important highways is the A22, also called the "Autostrada del Brennero". It connects to the Brenner Autobahn in Austria. The vehicle registration plate of South Tyrol is the two-letter provincial code Bz for the capital city, Bolzano. Along with the autonomous Trentino (Tn) and Aosta Valley (Ao), South Tyrol is allowed to surmount its license plates with its coat of arms. Rail transport goes over the Brenner Pass. The Brenner Railway is a major line connecting the Austrian and Italian railways from Innsbruck and Verona climbing the Wipptal, passing over the Brenner Pass and descending down
Brenner Pass of above . As a result, air and noise pollution have generated heavy debate in regional and European politics. , about 1.8 million trucks crossed the Europa Bridge per year. In order to ease the road traffic, there are plans to upgrade the Brenner Railway from Verona to Innsbruck with a series of tunnels, including the Brenner Base Tunnel underneath Brenner. While the official groundbreaking of the tunnel had taken place in 2006 (with survey tunnels drilled in the same year), substantial work did not begin until 2011. Funding issues have delayed the tunnel's scheduled date of completion from 2022