There are pros and cons. Snow plows beat on a the vehicle - which is why plows are the last thing a truck does before you quit using it. Highway departments will use a dump truck mounted plow because the frame of the dump truck can take the beating (that they can put salt on the dump truck is a very useful side effect). Tractors are designed to pull plows through dirt which also beats on them, and so tractors can stand up to snow plows better than a truck. However tractors are slower and so cannot work for on road work. PTO and hydraulics are useful as well.

You don't use custom-designed vehicles? I'm used to snowplows being these massive, reinforced vehicles that look like they could take on a tank.

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?!

Not OP, but here in park city UT, we average ~21 feet of snow a season and got an epic 51 feet last season!

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...

Northern Norway. But it isn’t snowing right now — and also I’m in Ireland — so can’t do.

I've never seen that in Minnesota. They are attachments to a dump truck or road grader.

Yup, the tractors are for driveway work. For road work uses the dump truck mounted plows you describe.