High-speed railway, referred to as high-speed railway for short, refers to the railway with high infrastructure design speed standards, which can provide trains with safe and high-speed running on the track, and the train running speed is above 200 km/h. High-speed railway has different regulations in different countries, different times and different scientific research and academic fields.
The National Railway Administration of China defines China's high-speed railway as a passenger dedicated railway with a design running speed of more than 250km/h (including reservation) and an initial running speed of more than 200km/h, and has issued the corresponding document "Code for Design of High-speed Railway". The National Development and Reform Commission of China defines China's high-speed railway as a newly-built or existing railway with a speed of 200 km/h or more, and has issued the corresponding Medium-and Long-term Railway Network Planning Document, which unifies all track lines with a speed of 200 km/h into the category of China's high-speed railway network. ?
"High-speed train" is referred to as China high-speed EMU passenger train (G-prefix train) by people and train ticket system under China Railway Corporation (12306 official website), which is actually a mistake.