High speed trains in snow are indeed more difficult as the speed creates under pressure between the ground and the train. So much that even stones have to be re

High speed trains in snow are indeed more difficult as the speed creates under pressure between the ground and the train. So much that even stones have to be remove otherwise they hit the train all the time. This under pressure sucks up the snow and plasters it to the train. In Germany at least ICE train speed is reduced (despite their name ;-) if there is snow on the track.