the u.s. census bureau has defined a metropolitan area for atlanta which includes, but is not limited to, roswell, georgia and sandy springs, georgia. according to the 2016 american community survey, about 78% of working metropolitan residents commuted by driving alone, 9% carpooled, 3% used public transportation, and 1% walked. less than 1% of working residents commuted by bicycle, while about 2% of commuters travelled by all other means. about 7% of residents worked at home.