All over the world people have different ways to limiting car usage. They have a lot of pollution so why not do it? Many do car-free day where no cars are used. Others do a bike program. "It's a good opportunity to take away stress and lower air pollution."

There are some ways where people shouldn't use their car. If not you'll get a fine of $31 if you have even numbers on your license plate one day and the next day odd numbers. Private cars owned by middle class are choking cities. Heidrun Walter, mother of two and a media trainer was always tense when she had a car.

Vauban is making a new approach. Stores are being placed a walk away. In New York thay have a new bike-sharing program. Millions of Colombians hiked, biked, skated, or took buses to work, leaving the streets devoid of traffic jam. Even Mr. Sivak's son which lives in San Francisco has a car but takes Bay Area Rapid Transit, when he can. Knowing it takes him longer than driving.

It's a whole lot of new experiences and people can stay active. "Pedestrian, bicycle, private cars, commercial and public transportation traffic are woven into a connected network to save time, conserve resources, lower emissions and improve safety."