Punktförmige Zugbeeinflussung
After acknowledging the warning signal the train has to stay below the braking curve (German "Bremskurve") - fast trains may travel up to 165 km/h and they must reduce the speed to below 85 km/h after 23 seconds. Note that the operation of high speed trains beyond 165 km/h is not based on visual wayside signals or PZB inductors (using LZB or European Train Control System cab-signalling instead in Germany).
High-speed rail
China has the largest network of high-speed railways in the world and in 2015 it encompassed of high-speed rail or 60% of the world's total. It is also the world's busiest with an annual ridership of over 1.44 billion in 2016. According to Railway Gazette, the trains between Shijiazhuang and Zhengzhou East have the fastest average operating speed in the world at . The improved mobility and inter connectivity created by these new high speed rail lines has generated a whole new high speed commuter market around some urban areas. Commutes via high speed rail to and from surrounding Hebei and Tianjin into Beijing have become increasingly common, likewise are between the cities surrounding Shanghai, Shenzhen and Guangzhou.