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[email protected] · June 1st 17, 08:22 AM posted to uk.transport.london

On Thu, 1 Jun 2017 01:15:34 +0100
" wrote:
On 31.05.17 20:51, Richard wrote:
On Mon, 22 May 2017 13:22:12 +0000 (UTC), d wrote:

Other ATO lines on the tube have a blue or white light for proceed in ATO
mode but the victoria line seems to have retained plain old red/green. Any
know if there's a particular reason for this?

On other systems I've read about, green means clear to the next colour
light signal whereas white/blue means that you can start under ATP,
either ATO or manual, but the line isn't clear all the way to the
next. Perhaps those signals are 3-aspect? Does anyone have a good
reference for the Victoria signalling?

Richard.

Green - All trains clear

Blue - Trains under code clear

Red - Stop and stay

All I can say is I've never seen a blue aspect on the victoria line. What
signals remain seem to go straight from red to green in my experience.
However perhaps thats just station starters and the blue signals are in the
tunnels?

--
Spud