[peregrine]

You'd hope, but many area's "snow plowing" means the locals get together and hire someone with a road grating tractor to come and plow. AND if they have the extra budget toss some dirt on there.

:-) Obviously this doesn't apply to country or greater highways.

[bryanlarsen]

On the other extreme, Montreal's snow clearing costs an average of $155 million per year.

[jonknee]

With I would assume a large portion of that going to labor costs. Automated snow plows could be a huge help.