text: On car-free day people don't get in their car and drive to work, instead they ride a bike or take a bus to work leaving the streets from having a traffic jam."Bogota, Colombia in a program that's set to spread to other countries, millions of colombians hiked, biked, skated or took buses to work during a car free day leaving the streets of this capital city eerily devoid of traffic jams."Days without cars goal is to promote alternative transportation and reduce smog. That's showing the day with cars is increase alternative transprotation and decrease air pollution."it's a good opportunity to take away stress and lower air pollution." That's expains it's a good idea for not driving on the road, So that you can take away stress and lower air pollution. The day without cars is part of an improvement campaign." It's saying that the day without cars is helping the campaign.