On Aug 4, 5:36*pm, "Peter Masson" wrote:
"MIG" wrote in message

...
On 4 Aug, 11:39, "Peter Masson" wrote:







In the mid-1970s as part of the London Bridge resignalling a new Up
Passenger Loop was created asjacent to the platform 6 (renumbered from 7)
track. At the same time platform 6 was renumbered 5. The Up Passenger
Loop
and platform 6 line converge immediately beyond the station, with an
overlap
measured in inches rather than metres. Around 1990 platforms were again
extended to 12-car length, and the opportunity was taken to set the
starting
signals back to provide a slightly more satisfactory overlap.

That doesn't sound quite right. *There must have been plenty of twelve-
coach trains through London Bridge before 1990 (although they used to
hang over the end at Charing Cross at 5 and 6, and couldn't have
fitted in the others).

There were plenty of 12-car trains *through* London Bridge before the 1990s
platform lengthening, but they didn't stop.

I'll have to take your word for it (because I don't remember you ever
being wrong [or maybe just the once]), but I'm having trouble
reconciling it with dingy memory.

Moving the stop board further
back on London Bridge platform 6 may have had a side benefit of stopping
passengers running up teh ramp and opening doors of slammers after the right
away had been given, but it dodn't stop passengers running down the
footbridge and doing the same thing. The real reason was, as I stated, to
increase the overlap before the fouling point of platform 6 line and the Up
Passenger Loop.

I am sure that was the reason for moving it, but there must have been
some reasoning behind why they moved it so far. I thought there was
an opportunity taken to move it further from the subway at the same
time for safety reasons.


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