The international rail technology sector reached a significant milestone in Berlin as Siemens Mobility and Austrian Federal Railways (ÖBB) presented the world premiere of the new ÖBB Railjet M. Unveiled at the InnoTrans 2026 trade fair, the electric multiple unit (EMU) is specifically engineered to serve challenging inner-Alpine long-distance routes. Combining high seating capacity, cutting-edge digital diagnostics, and elevated passenger comfort, the train sets a new benchmark for sustainable mountain travel and European rail connectivity.
Based on a landmark framework agreement concluded in mid-2023, ÖBB has ordered 100 electric multiple units built on Siemens’ proven Mireo platform, which includes 31 dedicated “Railjet M” long-distance trainsets. Scheduled to officially enter commercial service in 2028, these trains are designed to satisfy rising passenger demand while supporting Austria’s long-term environmental and regional tourism goals.
Engineering Designed for Challenging Alpine Topography
Operating long-distance passenger services through mountainous terrain requires specialized rolling stock capable of handling extreme weather, steep gradients, and high passenger turnover. The Railjet M measures approximately 106 meters in length, achieves top operational speeds of 160 km/h, and features the European Train Control System (ETCS) to ensure maximum safety and cross-border interoperability.
To verify operational reliability ahead of its 2028 launch, prototype units underwent intensive climate validation testing in Vienna’s climatic wind tunnel. The trainsets were subjected to simulated snowfall, gale-force winds, and sub-zero temperatures dropping to minus 25 degrees Celsius. Additional dynamic track trials and system validations are actively taking place at the Siemens Test Center in Wegberg-Wildenrath, Germany.
Key technical and structural features engineered into the single-car Mireo concept include:
Weight-Optimized Bogies: Developed at the Siemens Competence Center in Graz, Austria, space-saving bogies maximize interior cabin room while reducing track wear and maintenance demands along winding mountain corridors.
Lightweight Aerodynamic Construction: High-strength, lightweight materials lower overall energy consumption, aiding zero-emission rail travel initiatives across sensitive ecological zones.
Continuous Self-Diagnostics: Onboard sensor arrays perform real-time monitoring, automatically transmitting maintenance data to service depots via secure wireless networks to prevent operational delays.
Low-Floor Accessibility: Built-in sliding steps and level-boarding doors bridge platform gaps, providing seamless access for travelers with mobility needs, heavy luggage, or seasonal sports gear.
Elevating Onboard Experience for Leisure and Outdoor Tourism
Alpine rail corridors connect major urban transport hubs directly to renowned skiing, hiking, and eco-tourism destinations. To accommodate diverse travel requirements, the Railjet M interior is configured to seat 257 passengers, including 27 first-class seats, 188 second-class seats, and 42 flexible folding seats.
The interior layout specifically caters to outdoor sports enthusiasts and families traveling with extensive gear:
Dedicated Sports Equipment Storage: Specially engineered racks hold up to 54 pairs of skis or snowboards alongside generous overhead racks for large travel suitcases.
Expanded Bicycle Accommodation: A spacious multi-purpose zone accommodates 14 bicycles, supporting summer cycle-tourism throughout the Alpine region.
Family-Centric Amenities: Dedicated family areas feature dedicated play spaces and a children’s cinema to keep young travelers entertained during long journeys.
Digital Connectivity & Refreshments: Onboard vending zones supply snacks and drinks, while mobile-signal-permeable glass windows and high-speed Wi-Fi ensure uninterrupted access to ÖBB’s digital Railnet portal.
Strategic Fleet Expansion Supports Sustainable European Travel
The introduction of the Railjet M aligns with broader European initiatives aimed at shifting passenger transport from private automobiles and short-haul flights to electrified rail networks. By expanding fleet capacity and elevating service quality, rail authorities are creating attractive, low-carbon alternatives for international holidaymakers visiting Alpine resorts.
Executive leadership from both ÖBB and Siemens Mobility emphasized that investing in high-capacity, reliable rolling stock is essential for meeting growing passenger volumes while preserving sensitive mountain environments. Modern digital maintenance frameworks ensure high train availability, allowing operators to run frequent, reliable schedules during peak summer and winter holiday seasons.
As dynamic testing continues in Germany, the ÖBB Railjet M represents a vital step forward in modernizing Europe’s regional transit network. By combining sustainable engineering, modern passenger amenities, and robust winter-weather capabilities, the new fleet is positioned to transform inner-Alpine long-distance travel for decades to come.
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