Guangzhou!

"Strange but true, a Chinese city is the best performer for sustainable transport, winning the 2011 Sustainable Transport Award by the Institute for Transportation and Development Policy (ITDP). A bike-sharing program, wide bicycle lanes lined with trees, and a huge bus system that ties in with the city rail network are all part of the recipe for a winning transportation system in Guangzhou, China, according to the Institute for Transportation and Development Policy (ITDP)." -

http://en.greenplanet.net/lifestyle/eco-sustainability/1874-chinese-city...