The more people who use mass transit, the more likely they are to meet the Surgeon General's recommendation to get physical activity by walking for transportation, according to this study included in a supplement to the Journal of Public Health Policy about the 2008 Active Living Research Conference. Those surveyed also were more likely to meet the recommendation if they had and used an employer-sponsored transit pass.
Since buses and trains are not "door-to-door," people who use mass transit are generally walkers by definition, but it is not known whether they walk enough to meet the physical activity recommendation and whether factors such as sociodemographics affect how much they walk. This study analyzed data from a sample of 4,156 people extracted from a larger 2001–2002 survey of metropolitan Atlanta residents who were interviewed by telephone and kept two-day travel diaries.
The study was based on a small sample, because few in Atlanta use mass transit, have access to employer-sponsored transit passes, or meet the recommended level of walking for transportation. The authors suggest further analysis of the cause for the association between transit trips and doing the recommended amount of walking.