Hello,
Wherever you live, if you'd like to take small steps to create cities designed for humans, not automobiles, please join this forum and reply to start the discussion on this topic.
You can see in my profile which cities I'm particularly interested in:
http://www.wechange.org/user/2
If you live there, you can help me to get things started (in French, in English or in Chinese).
(someone here:
http://www.worldchanging.com/archives/002927.html
mentions in the comments of a green city program in Taipei... I'll have to look at it. Unfortunately, my written mandarin is not very good).
If you live elsewhere, we can still cooperate on carfree cities in general...
Meanwhile, here's a very nice web site on topic:
http://www.carfree.com/
B.