Re: Three Position Signalling

[Yuri J Sos <steam4me@enternet.com.au>]

On Sat, 9 Oct 1999 01:41:14 GMT, mauried@commslab.gov.au (Maurie Daly)
wrote, and I selectively quote:


>Im a bit confused here, its certainly possible to leave Brooklyn on SG and be 
>held at TOT/U8 , ie the signal is red.

Yes, but the signal is set by ARTC, not Totty B Box (TBB).
>

>Yes , that was my point , can the signaller at TottyB only clear TOT/U8 for
>BG with approval of Adelaide,and does Adelaide control the BG facing points 
>and signals on the down independant goods line to prevent them being set in 
>reverse?
>How is this done ?, Electric lock in the frame ?

Yes.  

>Whats the situation at Brooklyn and Newport where SG and BG are shared.?
>Are there locks in the frames at Brooklyn and Newport controlled from 
>Adelaide to prevent BG movements.

Don't know about Newport.   Brooklyn has four staff machines (2 from
Newport, one each from Sunshine and TTB) so the signaller there knows
exactly what's coming at him from any direction, BG or SG.

>How about Nth Geelong C and Maroona.

Dunno.

>Is it theoretically possible to operate SG trains from Tottenham to Newport
>with TottyB and Brooklyn unattended, if it came to train order working on the 
>SG.

No.  I remember listening on the scanner as an westbound NR train
ready to roll early sat in MOT for 90 minutes one Sunday afternoon
'cos the signaller at Brooklyn didn't start till 1530.

I believe that CTC'ing the line from TTB to Newport is an ARTC
priority.

>Also who now controls posts ,186 WFJ,Sims 162,MPJ 206, and SS plats 1 & 2.

Krel posted a message answering this in the last week or so in a reply
to IsAGunzelInDenial who asked

> who performs Train Control for Sims St Jct -
>West Footscray Jct, and Tottenham B - Newport, Centrol or Mile End?

ARTC (Mile End) control from the down end of the Gauntlet track
(Dudley street). At the moment this is signalled by West Tower, WFJ,
Totty B, Brooklyn & Newport.
----------
>I presume that somwhere there is a dividing line between ARTC and FV ?
>Does FV own the SG tracks into Spencer St.

VicTrack, I think.

Regards

Yuri
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Yuri J Sos
Melbourne VIC AUS

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