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城市道路交通的拥堵是世界各国普遍面临的城市问题之一,影响着城市生活的效率和质量,带来了环境等一系列社会问题,制约着城市的发展。据调查表明,我国百万人口以上城市有80%的路段和90%的路口通行能力已接近极限。20世纪90年代中后期,上海等城市中心区50%的车道上高峰小时饱和?
The congestion of urban road traffic is one of the urban problems commonly faced by all countries in the world, which affects the efficiency and quality of urban life, brings about a series of social problems such as the environment, and restricts the development of the city. According to the survey, it is close to the limit that 80% of the cities in our country with a population of over 1 million and the intersection capacity of 90% of the crossings. In the mid-to-late 1990s, Shanghai and other urban centers of 50% of the lanes on the peak hourly saturation?