The U.S. experienced a 30% drop in traffic congestion in 2011, according to Inrix’s annual Traffic Scorecard. Seventy of America’s top 100 most populated cities showed decreases in traffic last year as well.

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The U.S. experienced a 30% drop in traffic congestion in 2011, according to Inrix’s annual Traffic Scorecard. Seventy of America’s top 100 most populated cities showed decreases in traffic last year as well.

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