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Traffic jam has been a problem shared by all countries around the world.In recent years,the urbanization of China reaches an unprecedented level,which leads to especially prominent traffic jam in large and medium-sized cities.The problem of traffic jam has extended from part to a wide range.Traffic jam not only affects the efficiency and quality of uiban life,but also causes a series of economic and social problems like environmental pollution and energy deficiency,which greatly restricts the development of cities.To solve the problem,well-organized public transportation is indispensable.Low ticket price is the basic guarantee of priority of public transportation.In the long term,we must vigorously develop rail transportation to lessen traffic jam.
