Another Study Confirms Los Angeles Is Most Congested City In America

Just yesterday, I blogged about an IBM study that found that Los Angeles causes commuters ‘the most pain’.  Check out that post:  Los Angeles is Most Painful For Commuters.    For today’s post, I found another study that confirms the IBM study’s findings that L.A. is the most congested study. 

INRIX, a leading provider of traffic and navigation services in North America, recently announced their mid-year INRIX National Traffic Scorecard special report.  The report findings confirm that traffic congestion across the country is rising due to signs of economic recovery, initial rollouts of highway construction projects funded by federal stimulus packages, and lower fuel prices.  

The data for the INRIX study comes, in part, from tens of billions of data points from INRIX's network of over one million GPS-enabled cars and trucks traveling across nearly one million miles of roads.

INRIX analyzed and ranked the worst metro traffic bottlenecks across the country and found that New York City, Los Angeles and Chicago continued to
dominate the rankings in commuting nightmares.  According to the report, the top 10 most congested cities in the first half of 2009 were:

  1. Los Angeles, Calif.
  2. New York, N.Y.
  3. Chicago, Ill.
  4. Washington, D.C. (from 5th in first half of 2008)
  5. Dallas, Texas (from 4th in first half of 2008)
  6. Houston, Texas
  7. San Francisco, Calif.
  8. Boston, Mass.
  9. Seattle, Wash.
  10. Philadelphia, Pa.

Comparing to the IBM study I blogged about yesterday, the top cities causing ‘Commuter Pain’ on that list are 1) Los Angeles, 2) Washington, D.C., and 3) Miami.  It’s interesting to note that Miami did not even make the INRIX top 10.  Perhaps the commuters in Miami get easily frustrated by traffic?  🙂

The INRIX report also provides information on commercial freight traffic concentration.   Findings show that while the nation's busiest long haul freight roadways cut across 28 states, more than 95% of this mileage comes from just 10 states – including Arkansas, Georgia, Tennessee and Texas.

For more information about this report,  see the complete National Traffic Scorecard, visit: and to view videos about the report go to

2 thoughts on “Another Study Confirms Los Angeles Is Most Congested City In America

  1. So is rural or urban life more sustainable? The question itself is probably misleading. Just as it is apparent that cities will have major difficulties in the coming years, it is also obvious that striking out for the wilderness on one’s own alone is naïve; very few people are actually able to be completely self-sufficient, even if they are able to tolerate living that way.

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