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http://tags.library.upenn.edu/tag/urban_studies+equity PennTags Feed for /tag/urban_studies+equity PennTags Feed http://tags.library.upenn.edu/makerecord/url/23758 http://tags.library.upenn.edu/makerecord/url/23758 Urban Studies - Commuting Inequality between Cars and Public Transit: The Case of the San Francisco Bay Area, 1990