High-speed rail in Austria
The West railway between the capital Vienna and Salzburg is being upgraded. Most new sections have a continuous maximum design speed of.
German and Austrian ICE trains operate at a maximum speed of, as do Austrian locomotive-hauled trains which were launched in 2008. The section between Attnang-Puchheim and Salzburg has not been part of the massive investments during the past decades. Therefore a new high-speed rail line between Köstendorf and Salzburg is being planned by ÖBB. Long distance and freight trains are planned to run through a long new track that is designed for a maximum speed of. This new infrastructure should enable to substantially increase the number of regional trains on the existing tracks and cut travel times for long distance connections by using the new tunnels. Construction works are expected to begin in 2025/2026.
The Brenner Base Tunnel under construction will allow speeds of up to. The expected year of completion is 2032. The first part of the New Lower Inn Valley Railway was opened in December 2012 as part of an upgrade of the line connecting the future Brenner Base Tunnel and southern Germany, which is being upgraded from two tracks to four and to a maximum design speed of. The section is also part of the Berlin-Palermo railway axis.
The Koralmbahn, the first entirely new railway line in the Second Austrian Republic has been under construction since 2006. It includes a new tunnel connecting the cities of Klagenfurt and Graz. Primarily built for intermodal freight transport, it will also be used by passenger trains travelling at up to. The travel time between Klagenfurt and Graz will be reduced from three hours to one hour. The Koralmbahn is expected to be operational by 2025. Another important project on the Southern Railway is the Semmering Base Tunnel. The new tunnel connects the states of Lower Austria and Styria and allows massive travel time reductions compared to the existing Semmering railway. The new base tunnel will become operational in 2028.
Network
| Line | Maximum speed | Length | Construction began | Service started |
| Western Railway | 200/230 km/h | Unknown | 1990 to 2016 | |
| New Lower Inn Valley railway | 220 km/h | Unknown | 9 December 2012 | |
| Marchegger Eastern railway | 200 km/h | 38 km | Unknown | 2025 |
| Pottendorfer line | 200 km/h | 47 km | Unknown | 2024 |
| Koralm Railway | 250 km/h | 2001 | 14 December 2025 | |
| Semmering Base Tunnel | 230 km/h | 2012 | 2030 | |
| Brenner Base Tunnel & its Austrian access | 250 km/h | 46 km | Summer 2006 | 2032 |
| North Railway | 200 km/h | 47 km | 2024 | 2030 |
| Western Railway | 250 km/h | 2025/2026 | 2040 | |
| New Lower Inn Valley railway | 230 km/h | Unknown | Unknown |