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 Europe
The United Kingdom's first dedicated high-speed line, High Speed 1 between London and the Channel Tunnel, opened 14 November 2007. A second line, dubbed High Speed 2, is now planned by the government, to be constructed initially between London and Birmingham with later extensions to Manchester and Leeds. High Speed 2 was approved by the government in January 2012. Furthermore, future upgrades to the Great Western and East Coast main lines (in combination with the Intercity Express Programme) could increase the lines' operating speed to , which would by definition make them high-speed railways. Such an increase would require the installation of in-cab signalling. Like Finnish and Russian counterparts, the strongest reasons for new high-speed lines are to relieve congestion on the existing network and create extra capacity.