They use a large snowplough, mounted on the front of an engine, to clear the snow off the tracks.
Unlike road vehicles, a small amount of snow is not a problem. the wheels push it out of the way.
train track
railroad
Railroad
Siding
Siding
in 1980, new trains stopped doing that but on some trains such as the HST, they still
Lubricate the track on a monthly basis.
Siding
Siding
railroad
none
Railroad tracks are often called rails.