社会经济日益发展的今天，区域的发展集中体现于这个区域的中心城市的发展。城市的人流、物流、信息流越畅通，城市经济就越有活力。然而，现代城市交通问题随着城市交通方式的发展逐渐形成并不断变化，人类经历了从以兽力或人力交通为主阶段→机动化的公交交通阶段→机动化的 As the social economy is developing day by day, the development of the region is concentrated in the development of the central city in this region. The city’s flow of people, logistics, information flow more smoothly, the more vibrant city economy. However, with the development of urban transport mode, the problem of modern city traffic has gradually formed and constantly changing. Human beings have experienced the transition from the main phase of bestial or human traffic → the motorized bus phase → the motorized