Database Shows Modes of Transportation By City

Within the U.S., there are cities in which a large fraction of the population walks to work, cities in which almost everyone drives alone to work, and cities in which more than half of the working population takes public transportation to work. A reader recently called my attention to a database he has developed that compares the various modes of transportation for more than 2,100 U.S. cities. The database is called Modes of Transportation to Work.
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