CCTV News: As the Spring Festival approaches, more and more people embark on the journey to return home one after another. In my memory, the sound of the train's whistle was like a horn to go home, starting a journey of reunion. Many friends have discovered that nowadays, when we take the high-speed rail, we can basically hear the sound of the whistle. So, under what circumstances does trains honk horns and what does different combinations of sounds mean? In the January 18th "Knowledge of Spring Festival Travel and how much does it know about the high-speed rail", let's talk about the sound of the train's whistle.

In various types of locomotives and high-speed train cabs, there are two whistle buttons: bagpipe and electric whistle. The driver also has a whistle pedal under his feet. The train driver only needs to press the button or step on the pedal and will make a whistle sound, and express different meanings through different combinations.

Zhao Zhuoming, the Taiyuan Locomotive Section of the Taiyuan Bureau of the National Railway, said: "The railway has strict regulations on the honking of trains, with a long sound of 3 seconds, a short sound of 1 second, and a interval of 1 second. When repeated sounds, it is necessary to have more than 5 seconds. 13 whistles are formed through different combinations to indicate different meanings. The commonly used long sound is a pay attention signal, which means that close to the whistle mark or there are pedestrians, and it should attract people's attention. One long sound is an alarm signal, which means that there is a bad place that endangers the safety of driving, and it should slow down. If the whistle sounds continuously, it means that there is a fault in the adjacent line and send an emergency stop signal to the adjacent line train."

In order to reduce the interference of whistling to people's lives along the railway, the railway department has restricted the whistling area, and many residential areas have included restricted whistling areas. Especially with the development of railway communication methods, many things that needed to honk in the past could be contacted through communication equipment.

Shen Xujie, director of the EMU operation workshop of Taiyuan Locomotive Depot of the National Railway Taiyuan Bureau, said: "When the train is running, in addition to encountering special circumstances such as personal injury, driving safety, impairment of communication equipment, etc., drivers generally no longer honk the horn. Even if they honk, they will give priority to using electric whistle or bass bagpipe to reduce noise pollution. Therefore, now people rarely hear the horn sound of the high-speed rail."

Walking into the EMU maintenance database to unlock the horn sound of the Fuxing horn

Although high-speed rail trains generally no longer honk the horn, the reporter also explored the EMU maintenance database and recorded some of the horn sounds of the Fuxing horn sounds. Let's learn about it together.

In recent years, my country's high-speed rail has continuously improved in noise reduction technology, which not only reduces noise interference to residents along the route, but also greatly improves the passenger's riding experience. The application of every new technology is a proof of my country's railway transportation development strength.