text: , Paragraph 10) was implemented. The reduction of car usage is a difficult prospect, but there have been scenarios in which this has been a positive change in society. In Andrew Selsky's "Car-free day is spinning into a big hit in Bogota", a description of a city's participation in a car-free day is given, and Selsky also characterizes that other surrounding cities participated because it was such a successful idea. Carlos Arturo Plaza mentions that the car-free day is "...a good oppurtunity to take away the stress and lower air pollution..." (