Innsbruck Italy and Munich, Germany. The A12 and A13 converge near Innsbruck, at which point the A13 terminates. Innsbruck Hauptbahnhof, the most important railway station of Innsbruck and Tyrol, is one of the busiest railway stations in Austria. It is served by the Lower Inn Valley line to Germany and eastern Austria, the Arlberg line to the west and the Brenner line, which connects northern Italy with southern Germany via the Brenner pass. Since December 2007 suburban services have been operated as the Innsbruck S-Bahn. Innsbruck Airport is located in the suburb of Kranebitten, which is located in the west of
Brenner Pass Counts of Tyrol within the Holy Roman Empire. Emperor Frederick Barbarossa made frequent uses of the Brenner Pass to cross the Alps during his imperial expeditions of Italy. The 12th-century Brenner Pass was a trackway for mule trains and carts. Modernisation of Brenner Pass started in 1777, when a carriage road was laid out at the behest of Empress Maria Theresa. Modernisation further took place under the Austrian Empire and the Brenner Railway, which was completed in stages from 1853 to 1867. It became the first trans-Alpine railway without a major tunnel and at high altitude (crossing Brenner Pass at