I was surprised to see this video clip of a train in New Brunswick, Canada. Notice how the snow is thrown up, and builds up on and around the cab of the locomotive. How on earth can the driver see whether there's a vehicle (or any other obstruction) on the tracks ahead?
That seems very unsafe to me. I would have thought it was dangerous for the train to continue under those conditions, but it didn't seem to stop that one. Can rail aficionados shed any light on the subject?