Urban planners, rejoice! Today, the New York City Department of Transit announced a radical new plan for improving the city’s bus lines: A fully dedicated express-lane for buses, running crosstown on 34th Street. It’s expected to improve bus speeds by 35%, on a route where buses are stationary a whopping 40% of the time. And it marks another huge, bold idea from Janette Sadik-Khan, the DOT commissioner who’s overseen a slew of projects, ranging from the new sidewalk saffolding to a pedestrianized Times Square.

That’s a coup for harried New Yorkers, but there’s a bigger story here, and one other outsize urban visionary: The New York proposal marks a huge coup for an idea that began in Curitiba, Brazil; and then was co-opted in Bogota, Colombia; and it’s now been spread around the world by Enrique Peñalosa, the former mayor of Bogota who’s become a globe-trotting evangelist for better urban planning…