Re: Derailment at Concort West - Reason

[David Johnson <trainman@ozemail.com.au>]

Andrew Duffin wrote:

> > The normal sequence that a driver sees for an advance signal at danger
> > assuming double light four aspect signalling is as follows:
> >
> > G            G            G            R
> > G   ----->   Y   ----->   R   ----->   R
> >
> From memory I think it's  (correct me if I'm wrong)
>
> G       G        G        R        R
> G ----->Y -----> R -----> R -----> R
>                          With
>                          Small
>                          Green
>

Depends where it is.  Some locations are:

G        G        R
G ---->  R ---->  R

But some are:

G        G        G        G        R
G ---->  Y ---->  Y ---->  R ---->  R


--
David Johnson
CityRail Guard
trainman@ozemail.com.au
http://www.ozemail.com.au/~trainman/