Re: Signalling in Victoria

[cmgord@ecr.mu.oz.au (Christopher_Martin GORDON)]

: > They will be installing them at Ringwood (No. 2 road was marked today)
: >
: > One more interesting thing at Ringwood, for the new set up, the last home
: > signal on the Up Belgrave Line before the down end points will show the
: > following:
: > Top light Red/Yellow/Green
: > Bottom Light  Red/??????
: > and a low speed light.
: >
: > What would the other colour be on the bottom light?
: >
: > There are two possible routes from this signal (once working) to No 2
: > road, or the new platform 1 (which requires a diverge through the single
: > compound)
: >
: > I would say the diverge would be Medium Speed, and the straight normal
: > speed.  If the bottom light was yellow, then it would work, if the bottom
: > light was green then you could show reduce to medium speed.

: Yes medium speed. Either yellow or green. If the road is set into the platform
: but not out at the up end, then I would expect R/Y but if the departure signal
: is also cleared then I would expect R/G.

But the bottom light only has two LED thingys.  Ie it can only show
two colours.  One must be red, the other green or yellow?

They are providing four speed trips between this signal and the next one.

The current signal there shows  red/yellow,  yellow/green, red/red.  (red/red/yellow)
I spose it must have also show red/green for a move to the city via the down platform
(which can't be done now)



--
Chris Gordon
http://www.ecr.mu.oz.au/~cmgord