[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Signalling Questions in Brisbane?



HXP1 wrote:

> Maurie Daly <mauried@tpg.com.au> wrote in message
> news:mauried.482.00857609@tpg.com.au...
>
> > Further on the subject of flashing indicators ,but NSW ones , is there any
> > differance in meaning between flashing yellow turnout indicators ,and
> > constant yellow ones.
> > In this case I mean the band of yellow lights that is located usually on
> the
> > home signal prior to the indicated turnout.
>
> > For example , at Yass Jnct for trains that have to diverge from one
> running
> > line to the other at either end of the bi directional running, get a
> flashing > yellow row of lights , whilst at Goulburn or Joppa Jnct you get a
> fixed non
> > flashing row of yellow.
>
> I was under the impression that NSW Single Light Flashing Yellow indicated
> that the signal in advance will be displaying a 'diverge' aspect?...
>
> So the sequance would be:
>
>  Green --> Flashing Yellow --> Red over 3 x Yellow inclined --> turnout.

Could be, but it could also indicate that the next signal is showing caution.
Just like green over yellow could tell you either that the next signal is green
over red or top yellow.

Also, the definition is pulsating.  It is not flashing.


--
David Johnson
trainman@ozemail.com.au
http://www.ozemail.com.au/~trainman/
------------------------------------
These comments are made in a private
capacity and do not represent the
official view of State Rail.
C.O.W.S. Page 11.