由于现代通信技术的发展,尤其是无线通信技术的广泛应用,使轨道交通运行控制摆脱了轨道电路的束缚。基于通信的列车控制(CBTC)系统的主要特点在于借助先进的车地无线通信技术,突破了数字轨道电路行车运行间隔的瓶颈,行车间隔大大缩短,增加了系统在线实时性,从而提高运能与安全性,适应现代化的大规模运输。 Due to the development of modern communication technology, especially the wide application of wireless communication technology, the control of rail transit has been freed from the constraints of the track circuit. The main feature of the CBTC system is that it breaks through the bottleneck of the digital track circuit driving interval by means of the advanced vehicle-ground wireless communication technology, greatly shortens the driving interval, increases the online real-time performance of the system, Safety, to adapt to the modernization of large-scale transport.