Koralmbahn Testing Complete: Austria’s High-Speed Rail Launch

Austria’s Koralmbahn high-speed rail line, tested between Graz and Klagenfurt, is set for December 2025 launch. ÖBB’s project promises faster travel.

Koralmbahn Testing Complete: Austria’s High-Speed Rail Launch
June 29, 2025 12:33 pm

Koralmbahn Testing Complete: Austria’s New High-Speed Rail Line Poised for Launch

The highly anticipated Koralmbahn railway project, a critical component in Austria’s high-speed rail network, has successfully completed its comprehensive testing phase, marking a significant milestone towards its official commissioning. Testing involved over 280 trial runs between Graz and Klagenfurt, a crucial step towards enabling a faster and more efficient transportation connection between the two cities. The project, spearheaded by the Austrian Federal Railways (ÖBB), aims to slash travel times significantly, promising to reshape regional transportation. The “who” is ÖBB and a team of specialists; the “what” is the completion of testing; the “when” is December 14, 2025, for commissioning; the “where” is between Graz and Klagenfurt; the “why” is to facilitate faster travel and enhance regional connectivity; and the “how” is through rigorous testing of all systems. This article details the comprehensive testing procedures, technical innovations, and future prospects of the Koralmbahn project, emphasizing its transformative impact on Austrian rail infrastructure.

Rigorous Testing Regime and Technological Advancements

The Koralmbahn testing phase was an exhaustive process, employing individual locomotives, specialized measuring coaches, and ÖBB Railjet trains to simulate operational conditions. Testing was conducted at speeds of up to 250 km/h, exceeding the anticipated operational speed of 230 km/h for the Railjet. This ensured all systems, including track infrastructure, overhead catenary systems, and signaling, could withstand the demands of regular service. The comprehensive testing regime assessed key railway functionalities, including the overhead catenary system and the Global System for Mobile Communications – Railway (GSM-R), the ETCS (European Train Control System), as well as the performance of the track systems. Highly sensitive sensors were used to meticulously record vibrations, power supply levels, and signal strength, enabling precise evaluation of system performance. This data-driven approach allowed engineers to refine and optimize various components of the railway infrastructure and address potential issues before the launch of commercial services.

Integrated Systems and Component Performance

The testing phase also focused on the integration of various railway components. The Koralmbahn project uses ETCS Level 2, a crucial technology that enhances safety by controlling train movements using continuous radio communication between the trackside and the train. The GSM-R, which allows for reliable voice and data communication between drivers, control centres, and trackside personnel, was also thoroughly tested to ensure seamless operations. “The results of the testing phase are very encouraging. They show that our calculations and models hold up under real operating conditions, and that all systems and components are functioning perfectly,” said Klaus Schneider, project manager at ÖBB-Infrastruktur AG. The smooth integration of these technologies is essential for realizing the project’s ambitious goals of reduced travel times and improved service reliability, thus forming the backbone of the Koralmbahn’s efficient operation.

Impact on Travel Times and Enhanced Passenger Experience

The Koralmbahn’s primary objective is to significantly reduce travel times between Graz and Klagenfurt. The journey, which currently takes nearly three hours by rail and around 90 minutes by car, will be cut to approximately 45 minutes upon commissioning. This dramatic reduction in travel time promises to revolutionize the way people travel between these two major cities. Andreas Matthä, the CEO of ÖBB, stated, “In the future, we’ll be able to travel between Graz and Klagenfurt in just under 45 minutes – making this the fastest connection available. The train will be twice as fast as travelling by car.” This acceleration is expected to not only attract more passengers to rail travel but also to boost regional economic activity by improving connectivity and reducing travel-related costs.

Final Preparations and Future Outlook

With the completion of testing, the Koralmbahn project now enters its final stages of preparation. Final official approval procedures for the new line are on the agenda, including comprehensive safety assessments. Simultaneously, the development of a new integrated regular interval timetable for passenger services will be completed over the summer, with its presentation scheduled for September. From August, extensive training sessions will begin for ÖBB’s infrastructure management team, including train drivers and technical staff. These training programs will equip personnel with the necessary skills for the operation and maintenance of the new line. The commencement of freight traffic, scheduled for October, will further underscore the Koralmbahn’s importance in the broader transportation network. These preparations position the Koralmbahn for successful launch, promising a new era of efficient and sustainable transportation for Austria.

Conclusion

The successful completion of the Koralmbahn testing phase signifies a pivotal moment for Austria’s rail infrastructure and its commitment to modern, high-speed transportation. The project’s rigorous testing regime and innovative technologies highlight its dedication to safety, efficiency, and passenger experience. The expected reduction in travel times between Graz and Klagenfurt will have a significant impact on regional connectivity, with the potential to boost economic activity and encourage a shift towards sustainable transportation. The careful integration of technologies such as the ETCS and GSM-R underpins the future reliability of operations. The upcoming launch of both passenger and freight services will further solidify the Koralmbahn’s role as a vital component of Austria’s rail network. Looking ahead, the Koralmbahn project underscores the ÖBB’s commitment to enhancing rail infrastructure and ensuring a better and more connected future.