We often take high-speed rail in our life, but many people will have a problem when taking high-speed rail. Why are high-speed rail and bullet trains so similar? In fact, there are differences between high-speed rail and bullet trains. Let's understand the specific differences
Difference between high-speed rail and bullet train:
1. Essential difference
Motor car refers to the train running on the principle of power dispersion, and refers to the train model; High speed railway refers to the railway built with high standard technology, and refers to the line type.
2. Rail difference
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.
3. Operating speed difference
High speed EMU passenger train refers to the EMU train running on the passenger dedicated line at a speed of 250 km / h or above, with the maximum speed of 250 km / h to 300 km / h. The maximum speed of EMU trains reaches 200 km / h.
4. Different letters
High speed rail, usually led by G, is fully known as' high speed EMU passenger train ', referred to as' high speed rail'; EMU, usually starting with D, is fully called 'EMU passenger train', referred to as' EMU '
5. Hardware differences
Train control equipment and monitoring equipment are different. 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.
6. 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.