text: In Bogota, Colombia; uneven, pitted sidewalks have been replaced by broad, very smooth sidwalks; rush-hour restrictions have cut traffic tremendousally! Carlos Arturo Plaza said "It's a good opportunity to take away stress and lower air pollution," while on a two-seat bike with his wife. Stated in "The end of car culture" A study from last year found that driving by young people decreased 23% between 2001 and 2009. So if young people are already limiting their car usage, Why not the whole world?