A sampling of complaints from people I follow on Twitter, not in the planning/urbanist biz, about air travel, from today alone:
As air travel becomes more and more of a horribly unpleasant, unreliable hassle, and highway congestion inexorably increases, people are going to start looking for alternatives. The only question is whether we make our intercity transportation system grind to a halt before recognizing that, or whether we can catch ourselves before the crash.