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Ranking the most congested cities and the worst traffic bottlenecks


The INRIX National Traffic Scorecard 2010 Annual Report provides a comprehensive analysis of the state of traffic congestion in 2010 across America and how it’s changes versus 2009. In this year’s report, we find America is back on the road to gridlock after 11 straight months of increases in traffic congestion on our nation’s roads translating into an avg. 10 percent increase in travel times for drivers. The data suggests population growth combined with increases in interstate commerce spurred by economic recovery are fueling these increases. New analysis showing the nation’s worst traffic corridors finds that drivers traveling our nation’s ten worst traffic corridors annually spend an average of one month idle in traffic. Navigate via the link to the left and across the top for more details or visit our public sector page to learn how INRIX can help your state improve how it manages its road network.


2010 Top Congested Metros
Rank Metro Area Change*
1.Los Angelessame
2.New Yorksame
3.Chicagosame
4.Washington D.C.same
5.Dallas/Fort Worthsame
6.San FranciscoRank increased 1 point from 2009 ranking
7.HoustonRank decreased 1 point from 2009 ranking
8.Bostonsame
9.PhiladelphiaRank increased 1 point from 2009 ranking
10.Seattle/TacomaRank decreased 1 point from 2009 ranking
View All Metro Rankings
* Change in congestion rank from 2009
2010 Worst Traffic Corridors



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