I live in a small town where the train goes through the main intersection. There are barrier beams and signal lights and bells at this intersection, so no cars can get around when a train is coming. But the train still sounds the horn when it comes through. Is this neccesary? I can understand the need to do it at uncontrolled intersections.
And why are they SO loud, even when they've passed? The trains that come through our town still sound the horns after they have passed, and sound just as loud going as they do coming! Can they have "directional" horns where most of the sound is projected forwards?
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