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).
Rail transport in Italy
The first high-speed train was the Italian ETR 200, which in July 1939 went from Milan to Florence at , with a top speed of . With this service, the railway was able to compete with the upcoming airplanes. The Second World War stopped these services.