when will the northern end of the line be finished

On 21/22 May part of the closure is for track work - the TBTC part is only north of West Hampstead. On 29 May it is to allow a higher frequency of trains during "trial operations" by reversing at Charing Cross rather than Willesden Green.

Neasden depot signalling is being commissioned during the "Summer".

(Late) Summer 2011 is the information I have.

WTT11 due to be introduced 31 July:

"All Week:
Running time has been revised to reflect operation with the new TBTC signal control system.
Platform 3 commissioned at Stanmore and is utilised throughout the week.
After 22.00 the service increased to 18tph central area service which comprises 15tph Stanmore - Stratford and 3tph Willesden Green - Stratford.

Mondays to Fridays:
An additional six trains available for use in the peak periods.
Both the a.m. and p.m. peak periods increased to a 27 trains per hour (tph) central area service in both directions. 18tph will operate to/from Stanmore, 4.5tph will reverse at Wembley Park and 4.5tph will reverse at Willesden Green. 24tph will operate to/from Stratford with 3tph reversing at North Greenwich.
During both peak periods stepping back will take place via all three platforms at Stratford.
Interpeak services (10.00 - 16.00) increased to 18tph central area service, which comprises 12tph Stanmore - Stratford, 6tph Wembley Park - Stratford.

Saturdays and Sundays:
Before 12.00 the service increased to 18tph central area service, which comprises 12tph Stanmore - Stratford and 6tph Wembley Park - Stratford."

Well its a start ;D ;D ;D

That sounds like it could get very confusing very quickly for t/ops in times of disruption.

Thats for the Duty Train Staff Managers (DTSM) to sort out.

All I can say is that in early 2005 there were 24 trains every hour (the same as now I think), and there is this press release from TfL at the time describing this, still on their website

www.tfl.gov.uk/static/corporate/media/newscentre/archive/3808.html

saying that there were four new trains coming along then so the number of trains every hour would go up, presumably to around 27, by December 2005.

Seven years of huge disruption and expense later, and having installed the wonders of high technology (when it works), what are we now achieving? Increasing the number of trains from 24 to 27 every hour, it would appear.

Still only 24 every hour from Canning Town and Stratford by the way.

What does a 33% increase in capacity mean?
The Jubilee line is designed to take 27tph, it currently runs at 24tph(peak)

from the link Diana provided (2005)
"Tube Lines is due to deliver a full line upgrade of the Jubilee line in 2009, increasing its capacity by 45 per cent"

a 45% increase
Or from 24tph six car train (144 car) -> 30 tph (210 car)


But from TFL's Our Tube upgrade plan (feb 2011)

"The Jubilee line has seen the most dramatic demand growth ...
by the addition of a seventh car to all trains at the beginning of 2006 which boosted capacity by 17%. The current upgrade involves the installation of a new signalling system, ...
In total the upgrade will provide 33% more capacity, ..."


A third increase including an additional seventh car?
so a 33% increase from 24tph six car train (144 car) -> 27 + half tph (192 car) seven car

OR a 33% increase since the additional seventh car
24tph + 33%(8 trains) -> 32tph
or maybe 27tph(desiged) -> 36tph

At the monthly LURS Meeting last night, the 'JNUP' Manager gave away a few snippets:
- '96 Stock stopping tolerances were now 99.9% within 10cm.
- trains stop 80m apart in ATO.
- 30tph will come in after WTT11 has settled in and probably after the Olympics, so possibly Sept2012 for WTT12.

I've counted atleast 6 different 96 stock going in and out of the 3rd platform at Stanmore this morning, and all seemed to be in ATO and looked to be running OK. Evidence of progress up there at last?

sachil
In TBTC mode i belive trains run on full power now. When full line ATO comes in things should really pick up pace.