The world's first 35,000-ton, hook-free group train completed a successful trial run in north China's Inner Mongolia Autonomous Region on Monday.<br /><br />It marked the first time that a heavy-haul multi-unit freight train was able to run in coordination relying solely on wireless signals without mechanical hooks.<br /><br />The crux of the test was to speed up and brake seven units of freight trains each weighing 5,000 tons simultaneously without collision or disconnections by only using China-developed wireless signal smart system rather than traditional mechanical hooks.<br /><br />The wireless signal system was jointly developed by China Shenhua Energy Company and other institutions.<br /><br />This successful trail operation means that China could greatly enhance its freight transport capability, and also provide a new Chinese technical solution for the world's rail freight.
