Corpus is laid out pretty well, lot's of alternative routes, granted they are long but you can always avoid the traffic by taking the Mustang island route or the loop (every major TX city has at least one loop). Brownsville/Harligen....most folks probably walk....across the bridge that is, the only way that you know that you are still in the US is by the street signs. As far as Dallas and Houston and Dallas being above some of the other cities I disagree. I Houston there is about a 2 hr. window when you can travel traffic free and Dallas is about the same.
