On 18/10/2012 17:00, Paul Corfield wrote:
On Thu, 18 Oct 2012 16:21:18 +0100, "Richard J."
wrote:

Steve Fitzgerald ] wrote on 18 October 2012 00:27:46 ...
In message , Richard J.
writes
The Paris Metro has holding lights (3 white lights in a triangle) on or
near the headwall at many stations, used routinely to regulate the
service. In my experience LU have never tried to impose punctuality
controls in that way (except possibly on the ATO lines?).

Oh they do!

A red light until 30 secs before departure time seems to do the
business.

Yes, but isn't that just at termini and a few regulating points like
Hyde Park Corner? That still leaves stretches of a dozen or more
stations where no assistance is given to the drivers on accurate
timekeeping.

Surely all of the automated lines work to a precise timetable and
timekeeping? The trains on the Vic Line have a facility to tell the
driver exactly how many seconds there are before the train will depart
and when to start the door close process. This is location and time
specific given the link to the underlying timetable and dwell time
assumptions built into it. I was told about this when I was lucky
enough to have a control room visit and cab ride on the Vic Line
before I left LU.

Yes, I also saw that on the Victoria Line when I had a cab ride.

I've also noticed on 92 stock that there is a red line on the driver's
console, which looks like it is counting down. Is that time to departure
or an indication of how far ahead the preceding train is?

I also wonder why sometimes Central Line trains do not depart when the
signal aspect is lunar white, indicating that trains on auto-pilot can
proceed, but rather wait for the full green aspect that allows all
trains to proceed.

I would expect the Jubilee Line to have something similar. As ATC /
ATO spreads to further lines then accurate timekeeping simply becomes
the norm. Whether the concept of holding lights for cross platform
interchange is programmed into the differing ATC / ATO systems I have
no idea.

BTW, where can I find information about the new signals on the Jubilee
line, as well as the accompanying sign signals?