Advertisement A study published by China’s peer-reviewed Journal of Railway Science and Engineering on May 16 showed that even minor imperfections – such as uneven coils or bridge deformations – would turn a journey into an ordeal, even in near-airless tunnels. But the engineers – who are working at the world’s first full-scale test line in central China – also said they found a way to slash turbulence intensity by nearly a half, reducing “extremely severe bumps” to levels that were “pronounced, but not unpleasant”. The researchers, led by Zhao Ming from the maglev and electromagnetic propulsion division of state-owned China Aerospace Science and Industry Corporation