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
Predil Pass Predil Pass The Predil Pass or Predel Pass (; , ) (el. 1156 m) is a high mountain pass on the border between Italy and Slovenia. The pass is located in the Julian Alps, between the peaks of Mount Mangart to the north and Mount Kanin to the south. It connects Cave del Predil, part of the Italian municipality of Tarvisio in the northwest, with the municipality of Bovec in the Upper Soča (Isonzo) Valley in Slovenia. On the Italian side, the state highway No. 54 "del Friuli" leads from Tarvisio and the Canal Valley along the Slizza Creek to