Re: Three Position Signalling

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

Newmarket:
Last year I went out to Newmarket to get a couple of photos of the down
home (junction to Flemington Racecourse) This signal will show normal speed
of a movement to Broadmeadows and a medium speed aspect of a movement to
Flemington Racecourse.  During the time the Upfield trains were running to
Newmarket and last year this signal showed red/green (clean medium speed)
of the move to the Flemington racecourse line.  But for the exam trains
in July and show trains in September this signal only showed red/yellow
(medium speed warning) but the next 3 (2 position) autos were at proceed.

Why did the signal only show red/yellow, when it should have been red/green
or is it that these times the showgrounds boxes were switched in, were as
when the Upfield and empty car trains ran/run the Showgrounds boxes are switched
out?


Flinders Street:
Was there any reason that the home signal for a movement for the through 
suburban viduct to no.10 platform can only show red/red, red/yellow?
why can't this signal show red/green (for a movement along platform 10 to
platform 12)


Umm, the wonders of signalling.

--

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

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