After decades in which the private car was treated as the default form of urban transport, many cities are now rediscovering cycling as a genuinely (0) SUSTAINABLE (SUSTAIN) alternative. Air 1POLLUTE from traffic have been linked to thousands of premature deaths each year, and crippling 2CONGEST costs economies billions in lost productivity. By contrast, 3COMMUTE who travel by bike tend to arrive at work faster, more 4EFFECT and in noticeably better health than those stuck in their vehicles. Sustained public 5INVEST in segregated lanes, secure parking and bike-share schemes has persuaded many first-time 6CYCLE to leave their cars at home. The impact on road 7SAFE has been striking in several European capitals, where accident rates have dropped even as cycling volumes have risen. For planners trying to make city life more pleasant for everyone, cycling increasingly looks like one of the most 8BENEFIT policies available, provided that the political will to carry it through is also present.