Salt makes everything rust, from our cars to the roads and other vital shit. So what are some better alternatives?

Installing some heated rods underneath the rpads would be a good idea.

How about spraying rubbing alcohol instead of salt? Freezing point is -128 F, and there are plenty of videos of ice melting alcohol in action. But would it cause any damage if sprayed in a manner or quantity needed to melt the roads and sidewalks?