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从南三环丰台区公益西桥站,到北至海淀区安河桥北站,北京地铁4号线几乎横贯整个北京市区。早高峰期间不到2分钟的行车间隔(最快1分43秒,是北京地铁系统中发车间隔最短的线路),或许会让一些乘客觉得这条地铁线路和其他线路相比多少有些不同。即便如此,恐怕也很少人知道,这条线路背后到底隐藏着怎样的运作肌理和涵义。A、B资产划分地铁4号线项目之所以会引入PPP模式,
From South Gonghuan Fengtai District Gongyi West Bridge Station to the North Haidian District Anheqiao North Station, Beijing Metro Line 4 runs through almost the entire Beijing urban area. The traffic lanes, which are less than 2 minutes earlier during the morning rush hour (1 minute 43 seconds at the fastest, are the shortest departure lanes in the Beijing metro system) may make some passengers think the subway line is somewhat different from other routes. Even so, I am afraid that very few people know that this line in the end hidden in the end what kind of operating texture and meaning. A, B asset allocation Subway Line 4 project will introduce the PPP mode,