📋 Tender Overview
On December 14th, the Koralbahn goes into operation. However, it means testing, practicing and shopping until then. From April 14th, measurement and test drives will take place on the new route. And the train drivers are also preparing for the new rail age. The tests also lead to rail replacement traffic for the S-Bahn.
(Graz/Klagenfurt, April 7, 2025) - The Koralbahn between Graz and Klagenfurt is in the target sprint. On December 14th, the new high -performance route goes into operation and connects the state capitals in just 45 minutes of travel. However, there is still a lot on the checklist. Security is the top priority. A total of 15,000 test kilometers are handled in Carinthia and Styria and the route put through its paces.
Up to 250 km/h top speed
Most of these test drives take place with individual locomotives or specially prepared measurement cars. They are equipped with numerous sensors that precisely record vibrations, energy supply and signal strengths. First, the superstructure, i.e. the track systems, is used at up to 160 km/h. After that, the overhead line is gradually tested - with up to 250 km/h. The Koralbahn is permitted almost continuously for this maximum speed. Finally, so-called ETCS trips take place. This is checked in the EU uniform train protection system ETCS.
Training drivers: prepare for the inside
The measurement and test drives are carried out by specially trained train drivers: inside, who have to work as active apprenticeship leaders for several years: in the operating service and have a lot of experience in the work of the measuring rang. The measurement and test drives require a high degree of accuracy and technical knowledge. Training trips for the train drivers are also carried out: inside that will be on this route in the future. Route videos for training purposes are also shot.
Restrictions for local transport
Due to the necessary route blocks, the upcoming tests will lead to deviations on the route sections that are already in operation for local transport. A total of 32 test days are planned from April 14 to June 12. In order to hinder school and commuter traffic as little as possible, the tests also take place on weekends and public holidays, each between 07:30 and 3:00 p.m. Line S6 between Werndorf - Hengsberg - Bettmannstatten or in Carinthia are affected in Styria between Lavant Valley. During the locks, passengers are available for rail replacement by bus.
Passengers are asked to find out about any deviations before starting the trip and to plan time reserves. Additional information is also available in the Scotty app or at the OBB customer service under number 05-1717.
The Koralbahn at an overview
130 kilometers of new route, around 50 tunnel kilometers, over 100 bridges as well as 23 modern train stations and stops: The Koralbahn between Graz and Klagenfurt is part of the new south route and one of the most important infrastructure projects in Europe. Your heart is the 33 km long Koralmtunnel. After completion, the fastest possible connection between the state capitals is shortened to just 45 minutes.
