LOS ANGELES (CBSLA.com) — A study confirms . . . once again, that traffic is getting worse in Los Angeles.

Commuters worldwide spend about 168 hours — or one week — sitting in traffic every year, according to an annual traffic index report released Tuesday by GPS maker TomTom.

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Los Angeles was ranked the 10th worst city in the world for congestion in 2014, topping the list in the United States.

The average daily delay for a 30 minute commute adds an additional 25 minutes, the company reported.

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According to the study, Tuesday and Wednesday mornings and Thursday evenings were the worst congestion times.

The top 10 U.S. cities with the worst traffic were:

  1. Los Angeles
  2. San Francisco
  3. Honolulu
  4. New York
  5. Seattle
  6. San Jose
  7. Miami
  8. Chicago
  9. Washington
  10. Portland

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