a Public transportation category includes workers who used a bus or trolley bus, streetcar or trolley car, subway or elevated, railroad, or ferryboat.
b Other means includes ferryboats, surface trains, and van service and other means not classified.
NOTE: Percents may not add to 100 due to rounding. For the methodology used to calaculate the proverty level, please see How Poverty is Calculated in the ACS, which is available at http://www.census.gov/hhes/www/poverty/poverty-cal-in-acs.pdf.
SOURCE: U.S. Department of Commerce, Census Bureau, 2011 American Community Survey, table B08122, available at http://www.census.gov/acs/www/index.html as of January 2013.