Everyone likes to claim that their morning commute is bad - but who really has it the worst? There's no question that major cities can be a pain to drive in, if only because there are simply so many people confined to a small space. A recent IBM survey studied some of the world's major cities to determine which really had the worst commutes.

The 2011 Commuter Pain Survey polled drivers from around the world and asked them for more information on their average commutes, as well as some of their horror stories. IBM then weighted several factors and broke the results down into one score per city.

Mexico City was named the worst in the world by the results of the survey, scoring a 108. The next closest cities were both in China: Shenzen and Beijing, each scoring a 95.

Despite the notorious reputation of some U.S. cities, they actually performed relatively well on the surveys compared to other major urban centers from around the world. Los Angeles was the worst U.S. city with a score of 34, making it the 12th worst in the world. New York was in 15th at 28 and Chicago in 18th at 25.