Critical Mass Featured in
To raise awareness about environmental issues and the vulnerability of pedestrians and cyclists, the critical mass of cyclists gathers for a ride on the streets of Chicago. Nothing is arranged in advance, and the route may change on the way. Some people disagree with the spontaneity and inconvenience of the rush bike hour the event creates, while the event grows more and more in size. One way or another, this is a nice way to get together, and it's only one day in a month—on the last Friday!