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 additional information, please refer to the American Community Survey’s 2011 Subject Definitions, available at http://www.census.gov/acs/. Workers are civilians and members of the Armed Forces, 16 years and older, who were at work the previous week. Persons on vacation or not at work the prior week are not included.
SOURCE: U.S. Department of Commerce, Census Bureau, 2011 American Community Survey, table B08006, available at http://www.census.gov/acs/www/index.html as of January 2013..