The sound of a train whistle is not just a simple noise on the railway; it is a special language, with each whistle carrying its own messages and meanings.
One of the important functions of the train whistle is to facilitate communication during operations. When a train is about to arrive at a station, the whistle sounds to alert passengers on board to prepare to disembark and reminds ground staff to be ready to receive the train.
To ensure safety on the railway, the train whistle plays a warning role.
At the same time, the whistle also reminds passengers and people on the platform to stay safe and not to cross safety barriers. This is an effective way to maintain order and safety during the boarding and disembarking process.
To ensure safety on the railway, the train whistle serves as a warning, especially when trains pass through areas intersecting with roads or when pedestrians appear on the tracks. Trains must blow their whistles to alert pedestrians and vehicles near the tracks to move out of the danger zone. When crossing bridges, the whistle also signals to pedestrians on the bridge and vehicles below, ensuring the safety of everyone in the vicinity of the railway.
Different whistle combinations carry special meanings.
The train whistle is not merely a solitary sound; it also has clear regulations regarding timing and types of whistles. A long sound typically lasts for 3 seconds, while a short sound lasts for 1 second, with a 1-second gap in between. Different combinations of whistles have special meanings, facilitating easy communication and notifications between the train and other vehicles:
- One long, three short: This is an emergency alarm signal indicating a dangerous situation or urgent rescue needed.
- Two short, one long: A signal to indicate that the train is about to enter or leave a section of track.
- Long sound: A signal for departure or to continue the journey.
- Two long sounds: A signal to turn back.
- Three long sounds: A signal to recall.
- One long, one short: A steam signal.
- Two short: A signal for assistance or when the train is slipping.
- Three short: A signal to tighten the handbrake.
- Continuous short sounds: An emergency stop signal.
Whistle codes are clearly defined, and each sound acts as a communication command to ensure smooth and safe operations.
The railway industry is currently striving to reduce whistles in urban areas to avoid disturbing residents.
In the past, train whistles were also used when trains passed through residential areas to remind residents and vehicles near the tracks to pay attention. However, with more modern and enclosed railway systems, the need for whistles in densely populated areas has gradually diminished, even becoming a nuisance for residents. The railway industry is currently working to reduce whistles in urban areas to improve the quality of life for the public while balancing traffic safety with community interests.
As railways become increasingly modern and apply advanced technologies, the role of train whistles may continue to evolve to meet safety standards and social benefits. Nevertheless, train whistles still maintain their value as an indispensable part of railway culture and technology, serving as a vivid reminder of the importance of safety and the connection between people and technology on every train journey.
