If heated roads aren’t a viable option (I think solar roadways are, BTW, obviously more work needs to be done), then porous pavements might be.
Because the water goes through the surface when it melts rather than being trapped on the surface and re-freezing, the University of New Hampshire suggests that clients/municipalities that use porous pavements can reduce their de-cicing salt usage by up to 77%:
Moving roads/paths would probably be a cheaper way to clear the snow too - switch on the conveyor and deliver the snow to the end, where it can be conveniently dealt with.
Ah, oops, misread the metric conversion.
How about the poor lout who lives at the end of the road?
True, but since that’s both variable and a significantly smaller factor than the heat required to melt, I decided to ignore it.
For what it’s worth, heated sidewalks do exist. Several Norwegian cities and towns, for instance, have them in their main shopping districts. They still need to clear most of the snow away during/after anything more than a light dusting, but the heat clears away the little bit that’s left and stops it from turning to ice. It makes it a lot more pleasant to walk there - otherwise I suspect most of the potential customers would just head for the suburban shopping malls until spring came.