Dallas if up there, even if it's not top 10. A good perk is flex-time and/or telecommute to avoid at least some of rush hour - saves gas, wear-and-tear, and nerves. Moderated a fuel-economy forum and many talked about aggressive drivers seemingly wanting to bully drivers that didn't want to speed. I think in most cases, the truth is drivers simply don't give themselves enough time, then do crazy things on the road. If they are not familiar with the route, they are even crazier. As bad as being in an area with lots of traffic is, the silver lining is they probably have lots of jobs.