OTOH, an excessive feeling of ownership over neighborhood roads leads to the Tragedy of the Anticommons: everyone keeps the roads in their neighborhood off limits to outsiders, so everyone gets stuck in traffic longer, with all the entailing health and environmental costs, and thus a formerly public resource (roads) becomes underutilized.
OTOH, neighborhood roads aren't designed for the same amount of traffic as main roads -- maintenance happens less often, the roads are made of cheaper materials, there are no street lights, etc.
I don't believe that they are "underutilized" by being used solely as neighborhood roads -- that is, in fact, all they were designed for.
