text: The limit of car usage has also brought about more days of physical activity. In Bogota, Columbia, there were millions of Columbians who hiked, biked, skated, or took buses to work during a car free day they had, in attempt to lower the smog in the air. In return, what the people got out of this day was both the decrease in smog, but also the decrease of stress. Not only did the day leave the capital city completely devoid of traffic jams but also brought many people closer with each other. As an example, a man riding a bicylcle with his wife around the city, and says to say it was beneficial for both the enviroment and themselves.