The New Lower Inn Valley railway (German: Neue Unterinntalbahn) is a partially completed double-track high-speed main line of the Austrian railways. It connects the Brenner railway at Innsbruck and the Innsbruck bypass with the line to Kufstein, connecting with Germany, Salzburg, and eastern Austria. It forms a part of the core of the network of Austrian Federal Railways (ÖBB). The bypass is part of Line 1 of the Trans-European Transport Networks (TEN-T). The first section (Kundl–Baumkirchen), which is designed for speeds up to 220 km/h, was opened on 26 November 2012. Since the timetable change on 9 December 2012, it relieves the existing Lower Inn Valley railway between Wörgl and Baumkirchen with trains able to operate at up to 250 km/h. In the future, these and other construction projects (including the Brenner Base Tunnel) are expected to reduce travel time on the Munich–Innsbruck route from 1:50 to 0:55 and on the Munich–Verona route from 5:20 to 2:20. The cost of the project amounted to €2.358 billion.

History

The Kundl–Baumkirchen section was opened on 26 December 2012.

Route: section 1: Kundl-Baumkirchen

The line is 40 km long, of which approximately 32 km is in tunnels or deep cuttings. One segment has been made as an upgrade of the original line while the other is an entirely new line:

Signalling

The new line is fitted with ETCS Level 2 signalling system. Four new electronic interlocking systems were built to control both the new line and the existing line. These systems are remotely controlled from the new Innsbruck operations control centre (Betriebsfernsteuerzentrale).

Planning: section 2: Brannenburg-Kundl

The approximately 25 km section from Brannenburg in Germany to Kundl is currently in the planning phase with route selection between Schaftenau and Kundl having been completed. The continuation of the route into Germany is currently being negotiated. The selected route south from Schaftenau would leave the existing line via several short tunnels and cuttings to join the route of the A12 autobahn. It would then run through a nearly 10 km-long tunnel under the mountains of the southern Angerbergs and under the Inn, the A12 and the built-up areas of Kundl before emerging between the tracks of the existing line and running to the grade-separated junction at Radfeld.