In message
"Peter Masson" wrote:


"sweek" wrote in message
oups.com...
Wouldn't it be relatively cheap to lengthen the platforms even
further? With the high level of overcrowding now and even more
passengers using the route in the future, it seems like it will be
needed. 8 coaches seems like a good number indeed.

Getting a 4-coach platform length at Willesden High level will be
expensive, but do-able. To get 8 coaches here, because of the junction with
the City Goods Line, the only place is on a bridge over the WCML. To build
it you'd probably need a lengthy closure of the WCML.


Prefabricate the bridge off-site and swing it into position at three o'clock
on a Sunday morning, minimum closure time needed. More of a problem is
inserting it into the NNL without causing chaos the following Monday morning.

--
Graeme Wall
This address is not read, substitute trains for rail.
Transport Miscellany at http://www.greywall.demon.co.uk/rail/index.html