I just got back from Cyclovia in which Sydney road was closed to traffic for half the day and only cyclist, pedestrians and trams were allowed through.
Here are some photos from the event.
The event was very enjoyable, and I really liked the ride from Fistzroy Street to Brunswick. I did have to stop myselft from yelling out "Make public transport public" when the transport Minister Peter Bachelor got up to speak on "sustainable transport". It seems as though Yarra Council is also interested in the concept. I think it would be great to do something similar in Yarra, maybe close off Brunswick and Smith streets.