Re: [NSW] Granville question re signals

[David Johnson <trainman@ozemail.com.au>]

signal_spotter@my-deja.com wrote:

> Possibly because the DR relay (the one that drives the top green) cuts
> the low speed circuit. So by the time it's cut the LSp and then makes
> up the contact to light the top green is the possible reason for the
> delay. I'm only guessing here.

I think it is to do with proving the trip has lowered before clearing the top
green.  Why can't they prove the trip has lowered, then cut the bottom green and
turn the top green on simultaneously?

--
David Johnson
trainman@ozemail.com.au
http://www.ozemail.com.au/~trainman/
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