The status of the doors is communicated through visual and acoustic signals to ensure that it is perceptible to everyone.
When does the acoustic closing signal sound?
– It starts approximately 2 seconds before the door closes
– It continues throughout the entire closing process
– It stops when the door is completely closed and locked
– Is the sound the same in all cases?
It depends on how the door is closed:
– If the driver closes the door → the sound is broadcast through the train’s public address system.
– If the door is closed using the door button → the sound comes from the door’s local buzzer.
