"zin92" wrote in message
...
On Saturday, February 6, 2016 at 6:45:10 PM UTC, D A Stocks wrote:
zin92 wrote in message
...
On Saturday, 6 February 2016 10:36:56 UTC, Peter Smyth wrote:
zin92 wrote:

My understanding is that trains to and from Cannon Street will only
have two tracks available to them at London Bridge and there
wouldn't
be enough capacity if trains stopped at London Bridge. Hence they'll
pass straight through instead. Whereas trains to and from Charing
Cross will have three tracks available to them which does provide
enough capacity to allow stopping.

However platforms 4-9 seem to be well on their way to completion and
so why can't trains to and from Charing Cross use platforms 7-9 and
trains to and From Cannon Street use platforms 4-6? This would mean
that Charing Cross and Cannon Street services would both have three
tracks available to them which would allow all services to stop at
London Bridge.

Thanks

Presumably because platforms 4-6 do not have any connection to Cannon
Street, only to Charing Cross or Blackfriars.

Peter Smyth

Thanks Peter. According to page 88 of the below document (Stage 3 -
High
Level Station Works), Cannon Street can be reached from platforms 5 and
6:

http://www.infrarail.com/_downloads/...Thameslink.pdf

That's only a temporary connection while platforms 1-4 are (were?) being
rebuilt, and I assume it will have to be removed in order to connect
platforms 4-5 to Blackfriars. They need a minimum of 3 platforms
available
to provide enough capacity for stopping services. The final layout will
have
no connections between Cannon St and platforms 4-9.
--
DAS

I'm only talking about a temporary connection between platforms 4-6 and
Cannon Street from August 216 to December 2017. During this time, there
won't be any services to Blackfriars. I'm trying to understand why all
three of platforms 4-6 can't be used for services to/from Cannon Street
during this time thus enabling trains to stop at London Bridge.

Because "they" have decided that the ongoing cost of providing this
temporary link that you require is more than the cost of the inconvenience
to passengers caused by not providing it.

Don't forget that, apart from this inconvenience cost to the pax, there is
presumably the "real" cost to Network Rail of paying TfL for the alternative
use of the Underground by passengers who are so inconvenienced. The
wouldn't enter into this cost if it weren't the best option for them.

People who do re-building work "in situ" don't decide to close down current
routes willy-nilly, they do it because it's necessary (though sometimes for
reasons which non "professionals" don't understand).

tim