China has successfully tested a groundbreaking “group train” system in Inner Mongolia, combining seven 5,000-tonne freight trains into a single, synchronized convoy. Using high-speed digital communication instead of traditional couplers, the 35,000-tonne formation moved seamlessly along the Baotou-Shenmu Railway, demonstrating a new era of heavy freight transport. Engineers say the system allows multiple trains to coordinate as one unit, improving efficiency without building new tracks.
The virtual coupling technology significantly reduces the destructive forces caused by long trains and allows them to maintain close distances safely. Each train receives real-time data on speed, position, and braking, enabling precise coordination across multiple stations. The method also eliminates the need to modify existing platforms, while minimizing wear and tear on tracks and equipment.
Officials say this innovation could increase rail freight capacity by over 50 percent, especially on critical coal and mineral corridors. By relying on software and connectivity rather than new infrastructure, the system sets a global benchmark for sustainable, automated heavy transport. Experts note that such digital coordination may reshape freight logistics worldwide and reduce environmental impact by shifting more cargo to efficient rail systems.
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