A new INRIX National Traffic Scorecard Reveals Startling 30 Percent Decrease in Traffic Congestion in 2008. The Study ranks 100 worst congested cities cites tumbling economy and fuel price volatility as causes for unprecedented decline in traffic congestion. According to the report, the top 10 most congested cities in 2008 were:
1. Los Angeles, California
2. New York, New York
3. Chicago, Illinois
4. Dallas, Texas
5. Washington, DC
6. Houston, Texas
7. San Francisco, California
8. Boston, Massachusetts
9. Seattle, Washington
10. Minneapolis, Minnesota