Re: Double Colour Light Signalling

[Chris Gordon <c.gordon@ugrad.unimelb.edu.au>]

MarkBau1 wrote:
> 
> <<<<<<<<Where is this syetm in use ?>>>>>>>>>>>>>
> 
> I assume you are refering to "speed signalling"?
> 
> Speed signalling exists on many suburban lines where the signals are close
> together. Anytime you see a medium speed aspect, R/G or R/Y when there is no
> diverging movement you are on speed signalling.
> 
> I have not driven a train on the Melbourne suburban system for 5 years now so
> my info is not current but Caulfield to Moorabbin (at least) showed VR speed
> signalling in all its vulgarity, they even put illuminated 40's, later 65's on
> the Y/G and R/G and, if my memory serves me, sometimes on the R/Y.
> 
> I was the AFULE rep. on the signal sighting commitee for a couple of years and
> had many heated discussions with signal engineers on the VR bastardisation of
> the 3 position signal system which is now so entrenched in Victoria.
> 
> Mark Bau

Both the down and up lines between Box Hill and Richmond use Speed Signalling. 
The Up line coming into Box Hill has '65' for the divergiging movement into Plat
3.

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