Using computer models, researchers studied several factors that could affect a city’s quality of life, such as how far people must travel to shop; availability and safety of bike paths; parking costs; and access to public transportation. The researchers estimate that by reducing car use by 10% and reducing the distance to public transportation by 30%, cities could expect the rates of heart disease to drop 15% and type 2 diabetes to drop by 11%.

The Lancet, September 2016