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 Railway (Italian for "Upper (Northern) Italian Railways", SFAI) in 1866. In the 1885 reorganisation it was absorbed by the Società per le Strade Ferrate Meridionali ("Adriatic Network"). The line came under the control of Ferrovie dello Stato upon its establishment in 1905. In 1919, Italy acquired Trentino-South Tyrol under the Treaty of Saint-Germain-en-Laye and the Austro-Italian border moved to Brenner. The section from Trento/Trient to Brenner was subsequently electrified at 3,700 V at three-phase 16.7 Hz between 1929 and 1934. Electrification was converted to 3,000 V DC on 30 May 1965. In preparation for the proposed Brenner Base Tunnel, the Innsbruck