Eyewitness footage shows a snow plow train clearing the railway track as heavy snowfall blankets Japan. Video credit: X @midoddwiar ...

The technique, developed by University of Sheffield engineers, involves blasting tracks with dry ice ... trains, which can cover greater distances than the limited fleet of cleaning trains.

Operating until mid-December, the fleet will treat a total of 318,000 miles (512,000km) of track to rid the railway of leaves, snow and ice. Network Rail said trains travelling in wet weather ...