text: There are also traditions such as "Car-free day" in Bogota, Colombia. On this day, car owners leave their cars at home and turn to hiking, biking, skating or bus taking. The main goal for this day is to promote alternative transportation and reduce the smog. Many people join in, resulting in a very large turn out, saying that "it's a good opportunity to take away stress and lower air pollution". It is thought that the people participating in this event are "generating a revolutionary change" . Not only has this day helped to decrease the pollution and smog in the city, it has brought improvements to the city. There has been a restriction on rush-hour which leads to the cut in traffic, sidewalks are being replaced, parks and sports centers are blooming throughtout the city and new restaurants and upscale shopping districts have cropped up.