train horn

train horn is an air horn or vehicle horn.

Also recorded as locomotive horn.

Overview

Powerful air horn that serves as an audible warning device on electric and diesel locomotives.

In detail

Its recorded use is train, sound generator and rail safety.

Sources

Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.

reference work · Reputable secondary · Wikipedia
“Train horn”, English Wikipedia, consulted as further reading
Consult the source
reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q1784578: train horn
Consult the source