> Is road damage from vehicles the main cause for road maintenance? In the midwest, I am 90% sure that the reason roads break apart is the freeze and thaw cycle

> Is road damage from vehicles the main cause for road maintenance? In the midwest, I am 90% sure that the reason roads break apart is the freeze and thaw cycles in winter. Both of them. Where I live, in a mountain region in France, temporary restrictions are put in place during a handful of days between the last winter cold and the first spring sun: heavy vehicles are forbidden to go over smaller roads, as the ongoing defrosting is a weakening factor and not every road is as though as a motorway.