Peter Defazio, the new chairman of the House Committee on Transportation and Infrastructure, talks bikes, pedestrians and transit — and getting us off fossil fuel.
Barcelona is making headway on its "superblocks," clusters of nine city blocks where car traffic is restricted and public space is expanded. This BBC video shows how a superblock functions: Most of the street space is reserved for walking and biking, while motor vehicles are limited to narrow, indirect rights-of-way.