Does the train horn noise mean anything?

Every now and then I hear a noise that seems to be pretty much random. The only way I can describe it is the sound of a train horn. If you've played this game, then you'd know what I mean.
This is the first Fallout game I've played, so I don't know if sounds usually mean anything. But I have played Skyrim, another Bethesda game, and in that game there were a ton of sounds that at first seemed to be meaningless that I later realised had a connection, like Nirnroots having their own eerie song.
Does the train horn sound mean anything or is it just random?
Best Answer
Are you perhaps talking about the Bad Karma sound?
It's the only sound that I would make sense of sounding like a train horn. Bad karma can only be obtained by doing "bad" things.
From the wiki:
Karma doesn't have as much of an effect on gameplay as in Fallout, Fallout 2 and Fallout 3, since reputation has a more important place.
However, it does still exist and if someone catches you performing an action that causes negative Karma against their faction you will often lose reputation with that faction; for example, stealing something from The Silver Rush where a Van Graff can see you. They may also become openly hostile despite your reputation with them not being lowered enough for you to be considered hated where they will attack you.
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What does it mean when you hear a train horn?
Rail squeal is a sound caused by a train's wheels slipping under specific conditions, usually in sharp curves. Air displacement of a train in a tunnel can create noise from turbulence. Trains also employ horns, whistles, bells, and other noisemaking devices for both communication and warning.What do train noises mean?
Answer #1: It's a wave of communicating between the train driver and workers on the tracks to acknowledge that the driver has seen them. Answer #2: For safety reasons \u2013 to make sure the horn is working before you leave the station.Why do trains horn randomly?
The reason that trains honk their horns so much at night is because it's dark and the trains aren't so easy to see. Even though the lights are on, you sometimes can't see them coming, especially around the many blind curves that Gilroy has, like the one near Leavesley and the one near the train station.Why Trains Blow Their Horns So Much
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