3 Answers

I believe because that sound travels further and can be heard easier with the human ear. Another thought is a lower sound vibrates so a hearing impaired person may be able to feel it. 

NOTE! NOT FACT, JUST A GUESS RJ OR RR SINCE YOU BOTH HAD ISSUE WITH ME NOT WARNING PEOPLE WHEN I'M NOT SPEAKING FACTUALLY! 

12 years ago. Rating: 5
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Try a look at this>>http://en.wikipedia.org/wiki/Train_whistle

12 years ago. Rating: 4
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Depressing isn't it.. Minors..  I think the subways were tuned in a dismal minor but I didn't think all trains were a minor.  I just pulled up a site with trains and listened to the notes, what I found was one was A7 (Amtrack) another was C# major.   I don't go with the minors can be heard further because of 'low notes, a minor is simple flat the third which can be produced anywhere in the register with a basic triad.  The rumbling of the engines and movement are much lower octaves than the horn or whistle.

 

12 years ago. Rating: 2
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