High-speed railway, referred to as high-speed railway for short, refers to a railway system with high design standards and high speed for the safe running of trains. Its concept is not limited to tracks, let alone trains.
The Code for Design of High-speed Railway issued by China National Railway Administration defines high-speed railway as a newly-built passenger dedicated railway with a design speed of 250 km/h to 350 km/h and running the standard gauge of EMU trains. China's National Development and Reform Commission defined China's high-speed railway as a newly-built or existing railway with a speed of 250km/h or above, and issued the corresponding Medium-and Long-term Railway Network Planning Document, which included some track lines with a speed of 200km/h in the category of China's high-speed railway network.
Overall characteristics
In fact, there are only two basic principles suitable for the living environment of high-speed rail: first, densely populated cities are densely populated and have high living standards, and they can bear the expensive fares and multiple stops of high-speed rail wheels and tracks; Second, a high socio-economic and technical foundation can ensure the construction, operation and maintenance of high-speed wheels and rails.
As far as these two points are concerned, the European continent with Paris and Berlin as the core, the Japanese dense urban belt and the megalopolis of China are the most suitable. Therefore, it is very logical that the world's most advanced high-speed wheel-rail technology was born in Germany, France and Japan, and was launched in China on a large scale.