text: in source three we talk about bogota wich is the site of a program that began in mid 1990s it has also seen the construction of 118 bike miles,the most by any latin america city. I am talking about car free day wich is celebrated to promote a pollution free world in bogota there are no cars only taxis and buses. If u ride a car on this day you will have to pay a $25 fine the turn out is always large despite the rain. "The rain hasnt stopped us before" says Bogota mayor Antanas Mockus.