Analysis on the mechanism and optimization method of urban traffic structure

Most cities in China have moved into a fast developing stage of motorization, and traffic jam is one of the most serious problems following it. Controlling and utilization traffic structure are particularly important in this special period. Firstly, the definitions of urban traffic structure, resident traveling efficiency and traffic structure utilization are given. In particular, to be more reasonable, the traditional definition of traffic structure is extended in this part. Then the mechanism of urban traffic structure is provided with the analysis on the relationship among utilization of urban transportation structure, improving the efficiency of urban residents traveling and alleviating urban traffic jams. Next, the paper puts emphasis on discussing methods of utilization traffic structure and traffic demand management, and time/space control are developed in this part, and the method of time/space control is provided on the basis of the extended definition of urban traffic structure.