"As New York City's transportation commissioner, Janette Sadik-Khan ... transformed the streets of one of the worlds greatest, toughest cities into dynamic spaces safe for pedestrians and bikers... Breaking the street into its component parts, 'Streetfight' demonstrates, with step-by-step visuals, how to rewrite the underlying source code of a street, with pointers on how to add protected bike paths, improve crosswalk space, and provide visual cues to reduce speeding..."--Provided by publisher.