Really, good snow tires and ensuring your city spends enough money on snow plows and sand is best. Sand, because after a certain point salt no longer lowers the freezing point enough for it to be useful as a melting agent. In northern Ontario I lived in a city with several large mines. The ore transport trucks, combined with the occasional day above freezing destroyed the main roads in the city badly enough without tire chains, or studs. By the end of winter, the main roads are a total disaster and the city spends the rest of the year in construction mode trying to repair them The whole freeze-thaw effect, allowing liquid water to get into cracks in the road then expanding when it freezes, along with the heaving of the ground as it freezes, just completely destroys everything.