"No city in the world will ever manage to end congestion because when traffic flows, people are drawn to their cars." - I disagree with this statement. There may be something about São Paulo that makes this true, but it's not a guaranteed universal truth.<p>Vancouver, British Columbia has taken an interesting approach - they don't run freeways into the city, and have, over the last 40 years, zoned a large stock of residential units in the downtown/west side of the city.<p>The goal is "Live where you work."<p>People still commute by car, and skytrain - but, in general, there is an approach to ending congestion. Affordable, high quality, inconvenient mass transit is a large factor. But, generally, just avoiding having to travel long distances to get to work is another.