Re: NRC <> Brisbane to Sydney safeworking.

[L & D <daisyw@ozemail.com.au>]

Krel wrote:

> On Sun, 15 Nov 1998 22:11:58 +1100, "David Proctor"
> <daproc.spambait@umpires.com> wrote:
>
> >Krel wrote in message <364eb105.6864419@news.netconnect.com.au>...
> >
> >>This happen already in Victoria. It is called Section Authority
> >>working. The train control graph is electronic; it will not allow
> >>"cornfield meets". The train controller issues an electronic authority
> >>via secure radio is the following format:-
> >
> >
> >[...snip...]
> >
> >>On arrival at the home signal at the facing points you stop. Insert a
> >>special key into a keylock that puts the main line signal back to red,
> >>motors the points and then clears the signal for the loop.
> >
> >
> >Why not just having trailable points like they do in Queensland - all trains
> >in the Up direction go onto one road (loop or main, not sure which) all
> >trains in down direction go into the other? The points are set up so that
> >when a train leaves (against the points) they revert to their normal
> >position. No need for keying then.
> >
> The idea was to avoid slowing trains down when no cross is involved.
> The cost involved in both time and dollars in slowing 1500 metres of
> train and then getting back up to speed is considerable.

But on the line the 730 report showed each train stopping for the staff exchange
I don't know for how long but it would have to be at least 5 mins so using Train
Orders with trailable points on non crosses would prevent them coming to a stand
still so until they can come up with the extension of CTC beyond Casino that
would have to be a better option than they have now.

Could anyone tell me if they have any trailable points anywhere on the
Murwillumbah line ?
Davo



> On some
> secondary lines trailable points are used.
>
> Cheers
>
> Krel
>
> >>Does this help or confuse??
> >
> >
> >Seems overly complicated. But then, that is the way of Australian railways -
> >why use 5 rules when you can use 5,237.
> >
> >David "The Doctor" Proctor
> >daproc.spambait@umpires.com
> >
> >
>
> All's well that ends.