From the Department of Tell Us Something We Don't Already Know we bring you Tom Tom's latest “congestion index” data.

This particular breaking news involves the GPS company's round-up of North American cities with the absolute worst traffic at the end of 2012. And you know who the wiener is:

Yep. Los Angeles. Your hometown.

After looking at traffic in 59 American cities Tom Tom found that the king of all that is jammed features 33 percent longer car trips in the best of times and 77 percent longer journeys during rush hour.

L.A. nearly made the top 5 worst global cities for traffic, too, coming in sixth behind Moscow, Istanbul, Warsaw, Marseille, France and Palermo, Italy, the Tom Tom folks told the Weekly.

If you have a 30 minute daily commute to work L.A. traffic will take 90 hours a year away from your life, Tom Tom says.

A rep told us:

Tuesdays and Thursdays are the worst days to hit the roads in LA, as they have the longest congestion delays. The heaviest traffic day of the year fell on Friday, Sept. 21, 2012 when the Space Shuttle Endeavor landed in Los Angeles.

And the worst cities in North America for traffic (with average increase in journey times) are:

1. Los Angeles (33%)

2. Vancouver (32%)

3. Honolulu (30%)

4. San Francisco (29%)

5. Seattle (26%)

6. Toronto (25%)

7. San Jose (25%)

8. Washington (25%)

9. New Orleans (25%)

10. Montreal (25%)

Enjoy your trip.

[@dennisjromero / / @LAWeeklyNews]

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