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一、项目概况北京地铁4号线是北京市轨道交通路网中的主干线之一,南起丰台区南四环公益西桥,途经西城区,北至海淀区安河桥北,线路全长28.2公里,车站总数24座。4号线工程概算总投资153亿元,于2004年8月正式开工,2009年9月28日通车试运营,目前日均客流量已超过100万人次。北京地铁4号线是我国城市轨道交通领域的首个PPP项目,该项目由北京市基础设施投资有限公司(简称“京投公司”)具体实施。2011年,北京金
I. Project Overview Beijing Metro Line 4 is one of the main routes in the Beijing rail transit network. It starts from Xicheng District in the south of Fengtai District via the Xicheng District, and north to the north of Ha’e An District in He An District. The route length is 28.2 Km, the total number of stations 24. Line 4 project estimates a total investment of 15.3 billion yuan, in August 2004 officially started, September 28, 2009 opened to trial operation, the current average daily passenger traffic has more than 1 million passengers. Beijing Metro Line 4 is the first PPP project in urban rail transit in China. The project is implemented by Beijing Infrastructure Investment Co., Ltd. (“Beijing Investment Co., Ltd.” for short). 2011, Beijing gold