10 US cities with the worst traffic jams
Average commute during worst driving hours: 36 percent longer than normal on a Friday at 5:15 p.m.
This southern city has a few roadways with bad commutes, but none worse than the route on the North Freeway from Exit 49B to Exit 58. This 9.5-mile stretch usually takes nine minutes to complete with no traffic, but can take on average 24 minutes during rush hour and up to 37 minutes on Friday evenings.
Pictured: downtown Dallas.