On Thu, 1 Oct 2015 15:31:39 +0100, "NY" wrote:

"e27002 aurora" wrote in message
.. .
On Thu, 1 Oct 2015 14:50:43 +0100, "NY" wrote:

"Guy Gorton" wrote in message
...
On Wed, 30 Sep 2015 23:39:51 +0100, Charles Ellson
wrote:

http://www.telegraph.co.uk/news/ukne...f-penalty.html

The photo used is exciting - 3rd rail into Marylebone almost
overnight!

And look how many different lines converge on Marylebone - all those extra
routes! Fitting them all through the tunnel under Lords cricket ground
might
be a problem.

The GCR built two doubletrack, and one tripple track tunnels under the
MCC Lords grounds. Although AFIK one one has track within it just
now.

I never knew that but I've just checked the large-scale maps on
http://maps.nls.uk/geo/find/#zoom=14...0.1684,51.5302

Although the tunnel further north is only single bore and twin track, the
southern section beneath Lords has two extra bores and 2+3 tracks either
side of the through ones:

http://maps.nls.uk/view/103029033 top left between Broadhurst Gardens and
Canfield Place by Finchley Road station, and spanning South Hampstead
station bottom centre

but

http://maps.nls.uk/view/103029030 bottom right and
http://maps.nls.uk/view/103029327 top left

Things become very tight around West Hampstead. They have eased
considerably by Neasden.

Given the use of third and fourth rail to Amersham, there were those
who thought 4th rail might be the solution for Marylebone to
Aylesbury. But given that Chiltern services now run to Birmingham,
and the possibility of running to Milton Keynes, IMHO, Chiltern should
lobby for 25kV.

Thanks for the link the National Library of Scotland maps, very
enjoyable.