The second half of the twentieth century saw the development of trains able to travel at more than 200 km/h – so-called high-speed trains. In Europe, in the new millennium, we now consider lines that allow speeds of over 250 km/h to be high-speed. The first countries to trial high-speed trains were France, Germany, Japan and Italy. However, the country with the biggest high-speed network today is China.
High-speed rail is somewhat problematic in Switzerland due to the terrain. Because of this, around 150 km of high-speed lines have been developed in Switzerland to date.