actually, you don't have to be in a 'snowy' part of the country...toronto is ridiculous with its sanding/salting applications..they dump billions of tons when there's a snow flake in the air..
i have been to other regions of the country where its colder and snowier but they use far less salt, if any...
i guess that with all the cars and congestion in a big city, the Ministry has to keep our roads clear and snow/ice free..