That's the traffic jam I was in a couple of weeks ago -- I-45 northbound, from Houston to Dallas. Apparently there's going to be task forces and committees and meetings to talk about improving the process of evacuating millions of people the next time it becomes necessary to do so.
I certainly hope they get something accomplished.
Update (10/11): Charles Kuffner and Stace Medellin follow up with good thoughts on the subject.
