Re: [Syd] Why do trains sound horn when leaving platform?

[usenet.spam@gunzel.net (Michael)]

 <martin_o@my-deja.com> wrote in article <95q1j7$3mj$1@nnrp1.deja.com>:

>Why do trains sound horn when leaving platform?
>
>I live very close to a train station (Westmead), and I'm working
>towards reducing the amount of noise that comes from stations. One of
>the most annoying noises is the loud horn as the train is about to
>leave. It seems to me there is no real need to do it. If it is
>a 'signal' from the driver to the guard, surely another method could be
>used?

The trains were there before you. 

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