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The impact of transportation infrastructure on bicycling injuries and crashes: a review of the literature

Background: Bicycling has the potential to improve fitness, diminish obesity, and reduce noise, air
pollution, and greenhouse gases associated with travel. However, bicyclists incur a higher risk of injuries requiring hospitalization than motor vehicle occupants. Therefore, understanding ways of making bicycling safer and increasing rates of bicycling are important to improving population health. There is a growing body of research examining transportation infrastructure and the risk of injury to bicyclists.