●Driving lighting function
The train may pass through multiple tunnels, and in extreme weather conditions such as heavy rain, fog, and snow with low visibility, turning on the lights has the same function as turning on the car lights, illuminating the way forward.
●Warning reminder function
Railway signals are divided into auditory and visual signals. The whistle is an auditory signal that reminds station staff that the train is about to enter or leave the station.
Just honking the whistle is not enough, you also have to turn on the lights. Everyone knows that the speed of light is faster than sound. Before the whistle blows, we will see the headlights first. The headlights plus the whistle are double insurance, reminding the platform staff and everyone waiting to keep a safe distance.
