I would agree that the majority if the value of roads currently derives from the use of them with modern vehicles. If somehow we immediately ran out of gasolin

I would agree that the majority if the value of roads currently derives from the use of them with modern vehicles. If somehow we immediately ran out of gasoline to power those vehicles, our economy would suffer a major loss of efficiency. However, the roads themselves would still be fundamentally and practically useful: They are public right-of-ways that allow foot, bicycle and other traffic access to private property. They are established routes along which travel is easier, services are available and landmarks are available for easy navigation. In fact, those fundamental uses of roads are sometimes improved by banning cars from them in some areas/times: https://matadornetwork.com/read/cities-banning-cars-city-centers/ https://matadornetwork.com/read/cities-banning-cars-city-cen...