I haven't a clue what you're describing. Do you have a picture? Also: where do you live, and how much snow do you get?!
I normally see dump salting trucks with plows that plow/salt the roads during snow falls and then we have cat bulldozers that later come pick up the snow and move it into dump trucks to be hauled away.
Video of the cats: https://www.icloud.com/attachment/?u=https%3A%2F%2Fcvws.iclo...