At Canning Town, I descended by stairs from the Bus Station to the
Jubilee Line ticket office platform. I noticed the escalator was being
replaced. I was confused by a notice saying escalator replacement takes
6 weeks and the replacement would end in July 2008. A CSA explained July
2008 was the date for the escalator system replacement program to end.
Does anybody here know the story? ISTR that line was opened in 2000 for
the Millennium. What is the design life of an LU escalator.

In message freenetname.co.uk> of Fri, 31 Aug 2007
09:28:12 in uk.transport.london, Walter Briscoe
nospam.demon.co.uk> writes

05h1t! I omitted "escalator" from the subject. ;)

On 31 Aug, 09:28, Walter Briscoe nospam.demon.co.uk> wrote:

Opened in 1999. Are you sure it's 'replaced' rather than
'refurbished'? It wouldn't surprise me especially if the escalators
need 6 weeks of heavy maintenance after nearly 10 years' service, and
6 weeks sounds definitely more like a 'maintenance' than a
'replacement' timescale (iirc it's at least 3 months to install a
wholly new escalator into an existing shaft).

On Aug 31, 10:54 am, John B johnband.org> wrote:

On Aug 31, 11:23 am, Kev mwfree.net> wrote:

Probably like most thing in short-termism Britain - built to a low
cost. No doubt the people responsible have long since moved on and
won't have to explain why in the end it'll cost far more than if
they'd spent a bit more money in the first place.

B2003

On Aug 31, 11:27 am, Boltar yahoo.co.uk> wrote:

To get the line open ASAP, they didnt bother with moving block
sections or ATO, instead just having the same signalling systerm, but
as a fixed block with Train Stops.

On Aug 31, 7:34 am, chunky munky hotmail.co.uk>
wrote:

And the system is so sparse that train capacity is restricted to far
below what the stations can easily handle - each station has basically
one home signal (with a VERY high speed overlap) and one starter
signal (with a low/medium speed overlap). As a result, run-in/run-out
capacity on the JLE is severely restricted, as the distance between
block sections is so much higher than one of the older, more
thoroughly signalled lines.

Once the new moving block system comes into its own, the absolute
capacity of the line will increase significantly, as long as dwell
times are kept as low as possible.

On 31 Aug, 11:23, Kev mwfree.net> wrote:

Again, no they didn't. *Replacing* escalators is a year-long process -
see this interesting piece on the escalators at Moorgate:
http://www.metronetrail.com/default.asp?sID=1125646086750

What they're doing here is refurbishing:
http://www.tubelines.com/news/performance/2007_08/QPR_Q1_2007-8.pdf

On Aug 31, 1:15 pm, John B johnband.org> wrote:

On Aug 31, 1:15 pm, John B johnband.org> wrote:
(but never previously made operational anywhere, ever)

I think you will find that the world is littered with operational loop
based systems.

Kevin