(Awake in the winter of early seven), December 9, 1994, China's first quasi-high-speed railway automatic blocking opened.

1994 December 16, Chang Ping, quasi-high-speed railway from Guangzhou to Shenzhen Pinghu automatic occlusion victory opened. At this point, all projects launched by the China Railway Signal & Communication Corporation, design, construction, equipment Guangshen quasi-high-speed railway automatic block. Automatic blocking ensure traffic safety, increase the interval by the ability to automatically control signal system.