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 in the United Kingdom
In September 2009, Greengauge 21 published a new study into High Speed Rail. This was far more extensive than Network Rail's proposal, calling for a full, integrated high-speed network totalling around 1500 km. Greengauge's plan calls for two north/south corridors from London, which would broadly parallel the ECML and WCML, together with three east/west corridors between London-Bristol, Sheffield-Manchester and Edinburgh-Glasgow. Both the north/south lines would consist of new-built high-speed lines, while the east/west corridors would run on existing lines upgraded to allow 200 km/h running. One of the central parts of the Greengauge 21 proposal is to have it linked directly with High Speed 1, to allow through running to the Channel Tunnel, thus enabling trains to run direct from regional cities to Europe. The draft timetable produced as part of the plan estimates that trains could run between Birmingham and Paris in approximately 3 hours.