How to solve traffic jams

This week on Ted.com I watched a video which was done by Jonas Eliasson about how to solve traffic jams. Road congestion is a phenomenon that exist all over the world and Jonas Eliasson has said on his talk that self-organizing is a complex social system that is very deep inside and when you want to resolve these social problems the best way is to create incentives. Someone from stolkholm came up with a crazy idea and that is by charging drivers one or two euros at these bottlenecks and believe it or not one or two euros was more than enough to make 20 percent of cars disappear from rush hours and besides congestion charges were introduced  in Stockholm on January 2006. And after it was introduced the congestion reduced substantially as 20 percent of the cars on the streets has been taken away. The video was also discussing about the public's support for congestion pricing of Stockholm and when it was introduced in 2006 people were against it and sooner or later they changed till the extend that 70 percent of the citizens in Stockholm have started to support the congestion pricing. And the people didn't actually change their minds, they were actually comfortable with congestion pricing all along which means Stockholm has reduced traffic by 20 percent and reduced congestion by a huge number.