Tom Radulovich, the executive director of the local non-profit Livable City, describes the recent livable streets achievements in San Francisco as "tactical urbanism" — using low-cost materials like paint and bollards to reclaim street space.
That willingness to experiment was a big reason that the Institute for Transportation and Development Policy (ITDP) gave its 2012 Sustainable Transport Award to San Francisco (an honor shared with Medellín, Colombia). In this Streetfilm we profile the innovations that earned SF recognition from ITDP.