What are the differences between high-speed railway and motor train? Comparative analysis of the differences between motor train and high-speed railway
4hw.com.cn: the development speed of China's high-speed railway in recent ten years has shocked the world. It is also known as China's new 'four inventions', which far exceeds the amazing accumulation of foreign countries in a hundred years. Then many small partners will encounter doubts when buying tickets. Are bullet trains and high-speed railways the same thing? What's the difference between bullet trains and high-speed railways? Let's have a look!
D-prefix bullet train, g-prefix high-speed bullet train, c-prefix intercity high-speed & hellip& hellip; These are trains running on Chinese Railways with a speed of more than 200km / h. The three types of trains often confuse many friends.
In a strict sense, motor cars are train models and high-speed railways are railway line types.
EMU refers to the type of train. It is a unique name in China, which is different from the previous ordinary train. Generally, ordinary trains are pulled by locomotives, and the carriage itself does not have power; The motor car itself has power. When running, it is not only driven by the locomotive, but also 'run by itself', so that the power can be dispersed and the running speed can be faster. At the same time, compared with ordinary trains, the vibration and noise of EMUs are relatively small. Therefore, the motor car is a train model different from the ordinary train.
At present, there are CRH1, CRH2, CRH3, chr5, crh6, crh380 and other different models of bullet trains in China (there is no crh4, because '4' is the homonym of 'death', which is considered unlucky; there are small divisions under each model, such as crh1a, crh1b, etc.; crh6 has not been officially put into operation). The Chinese name is harmony and the English name is CRH, which is the abbreviation of 'China Railways Expressway'. In fact, whether on China's' high-speed rail line 'or on the so-called' bullet train line ', the cars run are bullet train units. The difference is that the models are different: CRH1, CRH2 (except CRH2C) and chr5 are of 200km level. The designed operating speed is 200km / h and the maximum operating speed is 250km / h; CRH2C, CRH3 and crh380 are of 300 km class. The designed operating speed is about 350 km / h and the maximum is 380 km / h.
Therefore, motor car refers to the type of car, while high-speed railway 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 respectively.
Currently defined by the Ministry of Railways:
Bullet trains refer to railway lines with a speed of 200 kilometers per hour; High speed rail refers to a railway line with a speed of 300 kilometers per hour.
China's current railway route map (red is 300km / h-350km level; yellow is 200km / h-250km / H level & lt; new line & gt;; orange is 200km / h-250km / H level & lt; existing line reconstruction & gt;; white is & lt; 200km / h ordinary line; and blue is Maglev)
In China, there are three types of railway lines with a speed of more than 200km / h, which are called EMU (the train number starts with'd 'and the phonetic initials of' dynamic '), high-speed EMU (the train number starts with' g 'and the phonetic initials of' high ') and intercity Expressway (the train number starts with' C 'and the phonetic initials of' city '). In terms of speed, EMU is 200km / h, and high-speed EMU and intercity expressway are 300km / h.
Differences between rails: one is ballasted and the other is Ballastless
No small stones can be seen on Ballastless rail. Generally speaking, motor cars are on ballasted railway and high-speed railway is on Ballastless railway.
Hardware difference: difference between train control equipment and monitoring equipment
Motor cars and high-speed railways are different in the choice of models. Even if they run on the Beijing Shanghai high-speed railway, the models of cars with D prefix and G prefix must be different. Generally speaking, the models used by the high-speed railway have higher speed, so the safety requirements are higher. For example, the performance requirements for the bogie and windshield are higher.
Difference of central nervous system: - different train operation control systems
Recently, the train control system of the train has attracted much attention. This system is called the central nervous system of the train and is responsible for the communication signal and dispatching of the train. In other words, it is very important to avoid rear end collision. CTCs system (Chinese train operation control system) is installed on Chinese bullet trains, with reference to European ETCS standards. The difference is that CTCS-2 is used for lines with a speed of 200 km / h, CTCS-3 is used for lines with a speed of 300 km / h, that is, CTCS-2 is used for bullet trains and CTCS-3 is used for high-speed railways.
There may be problems with machinery and equipment, which will not be foolproof, but whether it is motor cars or high-speed railways, there is the last 'artificial mace' - xiangdun. This is a black signal bomb used on the railway. If the driver can't contact the dispatcher, he can run to the back of the train and put this thing at a certain distance. When the back car passes over the sound pier, it will make a huge sound to remind the train that there is danger in front and must stop. It is reported that although technology has improved, this ancient signal method has not been abandoned. However, in several serious train accidents, the ring pier was not used.