The difference between bullet train and high speed rail

1. Strictly speaking, the EMU is a train type, and the high-speed rail is a type of railway line, and the two are not the same concept. However, in China, bullet trains and high-speed railways refer to different types of railway lines.

EMU refers to the type of train. It is a unique name in China, which is different from the previous ordinary trains. Under normal circumstances, ordinary trains are pulled by locomotives, and the carriages themselves are not powered; The EMU car itself has power, and when it runs, not only the locomotive drives, but also the car "runs on its own", so that the power can be dispersed and the running speed will be faster.

At the same time, compared with ordinary trains, the vibration and noise of EMUs are on the low side. Therefore, the bullet train is a train type that is different from ordinary trains.

2. The Ministry of Railways currently defines that EMU refers to a railway line with a speed of 200 kilometers per hour; High-speed rail refers to the speed of 300 kilometers per hour of the railway line, generally speaking, the bullet train in the ballasted railway, the high-speed rail in the ballastless railway (ballast, is the meaning of rocks, coal and other fragments, the ballastless track refers to the track without small stones), in the current China, the bullet train and high-speed rail refer to two types of railway operation, the speed of the bullet train is at the level of 200 kilometers per hour, and the speed of the high-speed rail is at the level of 300 kilometers per hour. At present, there are more than 1,000 bullet trains, more than 500 high-speed rail trains, and more than 100 intercity high-speed rail trains.

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EMU refers to the type of car, while high-speed rail is the type of railway line, strictly speaking, the two are not the same concept. However, in China, bullet trains and high-speed railways refer to different types of railway lines.

The Ministry of Railways currently defines that EMU refers to railway lines with a speed of 200 kilometers per hour; High-speed rail refers to railway lines with a speed of 300 kilometers per hour.

Is the EMU considered a "high-speed rail"? There are two different interpretations:

1.According to the definition of the International Union of Railways, a speed of more than 200 kilometers per hour can be called a high-speed railway. On April 18, 2007, 140 pairs of domestic EMUs with a speed of more than 200 kilometers per hour made their debut for the first time in the sixth national railway speed-up.

At that time, the propaganda was, "China has its own high-speed train from now on."

2.However, soon after, with the opening of the Beijing-Tianjin intercity railway, the definition changed again. The relevant personnel of the Ministry of Railways said that according to the definition of the 2008 World High-Speed Railway Conference, "high-speed railway" must meet three conditions at the same time

Newly built dedicated lines, 250 km/h EMU trains, and dedicated train control systems. Therefore, in the current definition of the Ministry of Railways, the bullet train starting with "D" is not considered "high-speed railway", and the intercity high-speed rail starting with "C" and the high-speed bullet train starting with "G" are considered "high-speed railway".

In today's China, bullet trains and high-speed railways refer to two types of railway operations.