Road congestion is a pervasive phenomenon, all of the cities exist this problem. In other words, in order to solve China's traffic congestion, we should learn from the lessons of other cities.

Apart from building good public transport, or spending money on roads, there are many remarkable ways to solve traffic jam, we can charge the private car's driver some fees for lighting traffic congestion at the rush time. This fee could called "congestion charge". I think it will be applicable to the situation of driving on bridge.

Most of time, traffic jam happens due to accident, a new research shows us that driving slower or driving at constant speed can reduce car accident effectively. Another more applicable solution is change in infrastructure, synchronize every streetlight and make it automatic adjustments, this way has already practiced in Los Angeles.

Now in China, we need to practice more way to solute traffic problem.