Brenner Railway is situated at the border between Italy and Austria and also the operational border between the ÖBB and FS networks. The two companies operate different electrical systems, (15,000 V AC at 16.7 Hz in Austria, and 3,000 V DC in Italy), which requires a stop to change electric locomotives. For this reason, for a long time the operation of express trains from Munich to Verona and Milan was carried out with diesel railcars. Until 30 May 1965 was also needed a second engine change in Bolzano station, as the Bolzano–Brenner section still operated under three-phase AC electrification. In recent years
Sella Pass Sella Pass The Sella Pass (; or "Jouf de Sela"; ) (2218 m) is a high mountain pass between the provinces of Trentino and South Tyrol in Italy. It connects the Val Gherdëina in South Tyrol and Canazei in the Fascia Valley in Trentino. With Pordoi Pass, Gardena Pass, and Campolongo Pass, this pass forms a quadrangle around the Sella group. In the winter, ski trails are prepared that make the entire round in both directions, known as the "Sella Ronda". The Sella Pass is the third of seven Dolomites mountain passes riders cross in the annual Maratona dles Dolomites