At the moment, when a resource is depleted, we have the the option to restore with a project (which requires a lot of resources and energy) or simply remove it for free and re-imagine it (while gaining a few resources). So removal often seems like the best option, especially since there is no additional reward for restoring.
Those of us on resource routes have our home street resources depleted quite quickly, so we help each other out and restore when we can. But...there's no incentive for this other than simply being a good glitch. In street projects, we were rewarded with XP in exchange for our contributions, so what about earning some imagination (or even having some badges we could work toward) for restoring resources? I think this would encourage more players to contribute and help each other out.