"According to the Texas Transportation Institute's 2005 Mobility Report, Angelenos who traveled in the peak periods suffered 72 annual hours of delay. This was number one in the nation, by a large margin.
The T.T.I.'s methodology has some issues, but it is probably safe to say they got this right. I have studied Los Angeles traffic conditions for an 18-year period. My conclusion, to put it in formal transportation terminology, is that Los Angeles traffic really, really sucks.
Not that this eases our pain much, but San Francisco and New York, cities that supposedly show Los Angeles how transportation and urbanization should be done, are tied for second and 15th respectively in most hours of congestion delay."
Thanks to Franny Ritchie