With the development of economy, the number of motor vehicle especially cars is growing rapidly. Up to April 2011, there were 2.39 million vehicles which included 1.655 million cars in Guangzhou. From 2000 to 2011, the number of cars has grown about 6.6 times in the past ten years,and the average growing rate of cars is 20.2% per year. However, the capacity of road grew slowly, and the public transport system can not meet the travel demand at peak time. The contradiction of motorized travel and road supply was becoming more and more serious. According to the traffic management experiences of other countries, firstly this paper assessed the operating characteristic of road traffic. Then,analyzed the tendcy and problems of transportation In Guangzhou. Finally, some suggestions were provided from economic regulation and administrative aspects. <<