Re: Simple Question.....

["David Proctor" <daproc@bigfoot.com>]

I was trying to simplify the explanation - hence I said that there are
variations.

tezza <tezza@atinet.com.au> wrote in article
<68dr4h$cc3$1@loomi.telstra.net>...
> 
> David Proctor wrote in message <01bd15bb$406b8da0$0e4a23cb@locxvcym>...
> >Simple really - although complicated if you do not know (I presume you
are
> >talking about NSW safeworking here)
> >
> >The top light is the authority to enter the next section - Red = stop,
> >Yellow = turnout, Green = go
> 
> *Yellow does not always mean turnout, it may mean that there is a signal
at
> stop within breaking distance.
> 
> >The bottom light gives an indication of the signals in advance.
> >Thus, 2 Reds indicates stop, this will be preceded by a Green over Red,
> 
> *or yellow over red
> 
> >which will be preceded by a Green over Yellow,
> 
> *or 2 yellows or 2 greens
> 
> > which will be preceded by a
> >Green over Green - thus, a driver will get at least two signals advance
> >warning of a signal being at stop.
> 
> *Incorrect, a Driver may only get one signal's warning in advance of a
> signal
> being at stop. i.e. 2 greens, green over red, 2 reds.
> 
> >There are variations on this, with some other peculiarities thrown in,
> >(such as Close-Up and low-speed signals) but the principle is basically
the
> >same.
> >
> >Hope the above is of assistance.
> >David Proctor
> >daproc@bigfoot.com
> >
> >David Bradshaw <dab@sydney.dialix.com.au> wrote in article
> ><883539593.340513@fermi.dialix.com.au>...
> >> Just a simple question from an inquisitive commuter:
> >>
> >> Often I see two sets of lights one atop the other (ie on the same
post).
> >> I gather (correct me if I'm wrong here) that red = stop; amber=proceed
> >> with caution; green = proceed, though I am a bit lost as to the role
of
> >> the dual signals!!
> >>
> >> David Bradshaw
> >>
> >>
> 
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