How Trains Keep Tracks Clear in Heavy Snow. Trains equipped with snow-clearing rotors are essential for keeping railway tracks open during harsh winter conditions. These powerful machines feature a high-speed spinning rotor at the front, capable of cutting through deep snow and hurling it off the tracks using air pressure or an ejection mechanism. Originally developed in the late 19th century, they were created to handle snow depths that fixed plows couldn't manage. These trains are often used i