What is a high-speed rail?

The full name of high-speed railway is high-speed railway, which refers to the railway with high speed standard of infrastructure design and can travel safely at high speed on the track. The train running speed is above 200km/h, which is a professional, normative and research scientific engineering term and refers to a railway grade type. In recent years, China's high-speed railway has developed rapidly, which has two meanings:-China's high-speed railway, which is a technical standard, refers to the newly-built passenger dedicated railway that People's Republic of China (PRC) and China have repeatedly proposed to design and run EMU trains of 250km/h and above, with an initial operating speed of not less than 200km/h; Second, the road network construction China high-speed railway refers to all new railways with a design speed of 200 kilometers per hour and above and some existing railways that have reached the standard after transformation in China. By the end of 20 18, the operating mileage of high-speed rail in China exceeded 35 000 kilometers, accounting for about 70% of the world's high-speed rail network. This makes China the country with the longest high-speed rail mileage, the highest transportation density and the most complicated network operation scenario in the world.