一、城市交通拥挤研究随着城市化及机动化进程的加快,人们出行的频率增大、运输方式增多,对交通空间的多样化要求也随之增大。然而,城市发展的规模受限,使交通拥挤现象逐渐凸显。城市交通拥挤阻碍了城市经济及空间结构的良性发展,随之 First, the study of urban traffic congestion With the acceleration of urbanization and motorization, people travel more frequently, more modes of transport, the diversification of the traffic space requirements also will increase. However, the limited scale of urban development has led to a gradual increase in traffic congestion. Urban traffic congestion has hindered the sound development of urban economy and spatial structure, followed