The high speed rail is a special category of train.It runs at speeds above 200 km/hr (120 mph).It operates on a track that is continually surveyed and prepared to accommodate high speeds. A notable example of a high speed train is the Japanese Shinkansen also known as the bullet train.
It commenced operation in 1964 and was known as the first example of a high speed passenger rail system.
The fastest wheeled train running on rail is France's TGV(Train à Grande Vitesse which ,in English means "high speed train).
This train achieved a speed of 574.8 km/hr.(357.2 mph),under test conditions in 2007.
The highest speed currently attained in scheduled revenue operation is 350 km/hr. (220 mph) on the Beijing - Tianjin Intercity rail and Wuhan-Guangzhou high speed railway system in China.
The TGV runs at a maximum revenue speed of 300 - 320 km/hr. (190 - 200 mph) as does Germany's inter-city Express and Spain's AVE ( Alta Velocidad Espanola)