The Q&A video with the younger driver who was on the track-clearing run says it all.
It’s Canada, they can’t wait for perfection so they just sent an empty train on a bright clear day to clear it. They let the cow catcher force the trunks down under the wheels of the train. Only branches less than 10 cm could get through and the windshield wipers kept the view clear.
The image of a locomotive pushing forward through the snow is classic, one that stays with you having seen it since childhood.

And with a better punctuality. 