The drive along the Pacific coast is one of the most scenic in the U.S., but that's of little comfort to Los Angeles drivers stuck in traffic.

The average rush hour delay per 30-minute journey is 24 minutes. That adds up to 92 extra hours behind the wheel each year due to jams.

L.A. is the worst U.S. city on TomTom's list of top 100 for rush hour traffic, followed by Seattle (18), Houston (27), San Francisco (28) and New York (62).