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).
China Railway High-speed
Depending on their speed, there are 3 categories of high speed trains, G,D and C (G being the fastest at 350 kmph, D having a speed of 250 kmph and C having a speed of 200 kmph).