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现代城市轨道交通中 ,信号系统是整个自动控制系统中的重要部分。但信号系统的招标往往滞后于土建设计 ,为避免出现土建设计没有设备配合及压缩设计、建设周期的局面 ,信号系统招标应提前至总体设计开始时 ,重要的设备在初步设计完成后即应开始招标。1 信号设备的招标实施信号
In modern urban rail transit, signal system is an important part of the whole automatic control system. However, the bidding of signal systems usually lags behind that of civil engineering design. In order to avoid the situation that there is no equipment coordination, compression design and construction period of civil engineering design, the bidding of signal system should be advanced to the beginning of the overall design. The important equipment should start after the preliminary design is completed Bidding. 1 signal equipment tender implementation signal