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交通阻塞是一个国家在城市化进程中都难以避免的通病。上个世纪60年代，法国曾提出“要使每个工人拥有一辆小汽车”，结果车辆剧增，巴黎市区的交通几乎全面瘫痪。同时期的美国首都华盛顿市中心的道路交通被形容为“比100年前的马车快不了多少”。今天的北京也是如此，每到上下
Traffic congestion is a common problem that is difficult to avoid for a country in the process of urbanization. In the 1960s, France had proposed that “each worker should own a car.” As a result, the number of vehicles increased dramatically, and the traffic in the urban areas of Paris was almost completely paralysed. During the same period, the road traffic in the Washington, DC, city center was described as “not much faster than the carriage 100 years ago.” This is also true of Beijing today, every time