Re: Crossing loop design (r.e. Southern Aurora crash)

[Homer <trina@ihug.com.au>]

Railway Rasputin wrote:

> MattyQ wrote:
>
> >             In NSW, Vic and SA, automatic (or permissive if you live in SA)
> > signals are identified by staggered signal heads. NSW has a strict rule -
> > lower light must be 200mm to the right of the upper light. This rule does
> > not apply in Victoria. Signal heads can be staggered left or right and can
> > have different spacings between the upper and lower head.
> >
>
> Autos can also be straight up and down in NSW with a letter A underneath the
> signal as seen on the East Hills line.
>
> rgds

  there are (were?) some near ashfield like this, but they are following the
semi-automatic rule
of not being staggered because they can be controlled, but have an illuminated
'A' when placed
in automatic. the signals at ashfield have a reflective white letter 'A' on a
black square located below
the signal, simply because it was easier to add a sign than move the lights to
stagger them when the
signal was converted to a fully auto signal (was previously controlled by
strathfield).