We’re not going to keep and maintain every cul-de-sac, interchange, or frontage road that has been built. It’s not possible and, even if it were, propping up these places is a poor use of our resources. In a very real sense, many of our infrastructure systems are going to completely fail, whole neighborhoods will be abandoned, and cities will shrink geographically. Some of what has been built in the past two generations will be salvaged for reuse, but I suspect that much of it will simply rot in place.

