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The average working adult in Atlanta’s suburbs now drives 44 miles a day. (That’s 72 minutes a day behind the wheel, just getting to work and back.) Ninety-four percent of Atlantans commute by car. They spend more on gas than anyone else in the country. In a study of more than 8,000 households, investigators from the Georgia Institute of Technology led by Lawrence Frank discovered that people’s environments were shaping their travel behavior and their bodies. They could actually predict how fat people were by where they lived in the city.
Frank found that a white male living in Midtown, a lively district near Atlanta’s downtown, was likely to weigh 10 pounds less than his identical twin living out in a place like, say, Mableton, in the cul-de-sac archipelago that surrounds Atlanta, simply because the Midtowner would be twice as likely to get enough exercise every day.
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– http://www.slate.com/blogs/the_eye/2013/12/10/why_cul_de_sacs_are_bad_for_your_health_happy_city_by_charles_montgomery.html