Why do automobile horns tend to go off constantly during a vehicle fire or collision?
In: Engineering
In addition to what has been noted, some manufacturers cascade events when a crash is detected:
horn, flashing lights, emergency services outreach (via OnStar, etc), and fuel pump shut off (the latter may be universal and required, not sure).
The idea is simply to attract attention in case the accident didn’t occur at a busy place. Not sure how prominent this is, but it’s something I noticed started quite a few years ago when I was a medic.
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