Re: Three Position Signalling

["Notagunzel" <notagunzel@bigfoot.com>]

Christopher_Martin GORDON <cmgord@ecr.mu.oz.au> wrote in message
7tehqj$9dg$1@mulga.cs.mu.OZ.AU">news:7tehqj$9dg$1@mulga.cs.mu.OZ.AU...

> : Post TOT/U8
> : (Up Home from Brooklyn into Tottenham B/Loop) is currently the
same, the A light
> : is fixed, B Light applies to Standard Gauge Trains & the C Light
applies to
> : Broad Gauge Trains.  The B & C Lights are labeled with signs the
same as existed
> : at Post 144 @ NPT.

> When I took a photo of TOT/U8 of the F class tour (showing
red/red/yellow)
> there was at the very top an illuminated 'V' (the other would be
'S') the
> boards next to the 'B' light (S) and 'C' light (V) were not there.
If
> you want I will post this picture on my webpage tonight.

Here I am, shot down in flames again...|-(

>From SW 468/95:

"Between Friday, 27.10.95, and Monday, 30.10.95, the new standard
gauge crossing loop at Tottenham was
brought into service."

[snip]

"4. Post 8G was replaced by a new three position Up Home signal Post
8G.  This applies  from
the Brooklyn dual gauge line to Nos. 1 or 2 Track, Tottenham Loop, the
Up  Independent
line, or the Marshalling yard arrival tracks.  The signal is jointly
worked  Tottenham
signalbox and the NE CTC panel.  Lever 11, Tottenham, controls moves
to  the Up
Independent line, Lever 10, Tottenham, moves to the Yard Arrival
tracks, and  Lever 8, NE
CTC panel, controls standard gauge moves when Points 5 are reverse.  A
medium speed
aspect will be displayed for standard gauge movements, and a low speed
aspect for broad
gauge movements.  A low speed indication will not be displayed for
movements to the
standard gauge line.  A board lettered 'S' is mounted next to the 'B'
light of Post 8G and a
board lettered 'V' next to the 'C' light.  Automatic gauge detection
is not provided on the
Brooklyn line and the Signaller, Tottenham, must check the gauge  of
an approaching train
before signalling a broad gauge move, or operating the standard  gauge
crosslock."

[snip]

>From SW 536/95:

"On Friday, 1.12.95, automatic gauge detection was provided to control
the illuminated gauge indicator on
Post TOT/U8."

I really should check the facts before posting. |-)

--
Mr Notagunzel.
Rail Transportation Connoisseur.
notagunzel@bigfoot.com
(Waiting for any move at http://www.bigfoot.com/~notagunzel)