随着我国经济的飞速发展和城市化的进程的逐步加快,城市社会经济、政治、文化活动与日俱增,在这种形势下,城市交通得也到了前所未有的迅速发展。近几年来,我国的汽车产业发展越来越快,私人拥有轿车也越来越多,而车与路的冲突却越来越尖锐,交通堵塞问题在我国城市,特别是大城市日益凸显,如果不能得到有效解决,必将对我国经济的持续、快速、健康发展构成严重威胁。造成城市交通拥挤的基本原因是社会变迁,主要原因有两个方面:一是道路长度和面积的增长速度大大低于汽车保有量增长的速度;二是混合交通现象严重,道路网结构和交通结 With the rapid economic development in our country and the gradual acceleration of the process of urbanization, urban socio-economic, political and cultural activities are increasing day by day. Under such circumstances, urban transport has also reached an unprecedented rapid development. In recent years, the development of China’s automobile industry is getting faster and faster, more and more privately-owned cars are seized, while the conflicts between vehicles and roads are getting more and more acute. The problem of traffic congestion has become increasingly prominent in cities in our country, especially in big cities. Failure to be effectively resolved will surely pose a serious threat to the sustained, rapid and healthy development of our economy. The main reason causing urban traffic congestion is the social change, there are two main reasons: First, the growth rate of road length and area is much lower than the growth rate of car ownership; second, mixed traffic is serious, road network structure and traffic knot