Railjet M at RTA Rail Tec Arsenal
posted on 28th May 2026 11:57
The new ÖBB Railjet M is being tested in the climate wind tunnel in Wien. The tests simulate real weather conditions that can occur in Alpine regions. Temperatures from -25 °C to +45 °C, intense sunlight, strong winds, snowfall, high humidity and freezing rain are all part of the test program.
Experts then analyse components such as windows, doors and technical systems for their stability. In addition, toilets and water systems, thermal insulation, air quality and the vehicle’s energy efficiency are examined under extreme conditions.
ÖBB Passenger Transport Board Member Klaus Garstenauer: “With the Interregio lines, we have restructured long‑distance transport within the Alps. The Railjet M is our vehicle of choice for this. The tests in the climate wind tunnel ensure that our trains can withstand the extreme weather conditions in Alpine regions and offer passengers modern long‑distance comfort.”
Siemens Mobility Austria CEO Tanja Kienegger: “With the Mireo trains, we are bringing the latest train generation to Austria. As flexible all‑rounders, they are ready for use in both urban and Alpine environments - and across borders. At the same time, they are rolling computers: thanks to their diagnostic capabilities, they will operate with high availability and exceptional efficiency.”
The Railjet M was specifically developed for the requirements of inner‑Alpine routes. Steep gradients, sinuous tracks and extreme weather conditions demand powerful technology and robust vehicle components. A total of 31 trains Mireo EMUs, around 106 m long, with 257 seats, have been ordered. The Railjet M is scheduled to enter service on Interregio routes from 2028.
