TomTom launches Congestion Index based on traffic database; congestion levels in 57 cities in North America and Europe
Green Car Congress
JULY 11, 2012
Seattle, 25%. Based on this analysis, Seattle saw the biggest increase in traffic congestion, while Houston, Ottawa and San Francisco also saw increased levels of congestion. Based on this analysis, Seattle saw the biggest increase in traffic congestion, while Houston, Ottawa and San Francisco also saw increased levels of congestion.
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