Re: First Automatic signal?

[signal_spotter@my-deja.com]

In article <B576534C.11603%markbau@altavista.com>,
  Mark Bau <markbau@altavista.com> wrote:
>
>
> > From: "Chris Downs" <cvdowns@ozemail.com.au>
> > Organization: OzEmail Ltd, Australia
> > Newsgroups: aus.rail
> > Date: Wed, 21 Jun 2000 21:19:54 +1000
> > Subject: Re: First Automatic signal?
> >
> > "Speed signalling", now that piques my interest.
> >
> > I have a copy of "Clear Normal Speed" by John Sinnatt (ARHS,
Victorian
> > Division, 1966) that explains the signalling system in Kensington
is detail.
> > I assume this is the "speed signalling" Mark refers to.
> >
> > Why was this signalling system ill-fated?
> > Does is still exist in any way, shape or form at Kensington or
elsewhere?
> >
> > Chris
>
> I call VR's speed signalling ill fated because they took a perfectly
good
> signalling system which told the driver exactly what he needed to
know and
> bastardised it into a poor imitation of speed signalling and now the
system
> doesn't help anyone. Why didn't VR just adopt a real speed signalling
system
> like the poms use if that's what they wanted?
>
> Mark
>
>
The poms don't use 'speed signalling' they use 'route signalling' like
NSW and QLD. Route signalling aspects tell the driver when to begin
braking and the signalling is based upon the braking distance to the
next signal. Speed signalling aspects tell the driver the speed to do
through a particular section. Speed signalling is in use in America.

regards Ian
Signal Design Engineer


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