Are resources such as roads and footpaths considered sustainable?

Sustainable: The rate of use of a resource is such that the amounts taken will not affect the resource's ability to renew itself, and the same rate of productivity can be maintained in the future.|||Structures, constructed features, are not resources. They often (usually) are made from resources, but are not a resource of themselves.





A footpath doesn't require any resources, it just requires use to maintain itself. Roads are made using resources, like sand, gravel, and petroleum (asphalt) or limestone (concrete). I doubt very much that the use of any of these materials for road construction would be non-sustainable if used for that purpose only.