54. Rebecca Serna

Rebecca Serna
Illustration by Alex Fine

Focus Transportation, City Planning
Age 38
Atlanta’s growing enthusiasm for human-powered transportation is never more visible than at Atlanta Streets Alive—the periodic street-closure events inspired by Rebecca Serna’s Fulbright studies in Colombia. Witnessing Bogotá’s weekly Ciclovía—a massive, car-free street gathering—persuaded her to take the helm of the Atlanta Bicycle Coalition as executive director in 2007. The nonprofit lobbies for bike-friendly infrastructure and has helped shape the city’s transportation policy.

Street cred Streets Alive’s popularity has exploded since Serna led its 2010 launch, with the largest event drawing an estimated 106,000 attendees in September 2014.

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This article originally appeared in our October 2015 issue.