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Old October 13th 04, 09:57 PM posted to uk.transport.london,uk.railway
John Rowland John Rowland is offline
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Default A Moorgate to London Bridge Tunnel (Old chestnut)

"Tom Anderson" wrote in message
...
On 13 Oct 2004, Boltar wrote:

"Andrew" wrote in message

...

how about connecting the Northern City /
WAGN line with the Thameslink spur into
Moorgate, and restoring the 3rd curve at
Farringdon Junction making it a triangular
junction again.


I suspect the gradiants and curves required to
join the 2 would be too severe unless a new line
split off from blackfriars since from Barbican you'd
have to drop about 20 metres and do a 90 degree turn


More like a 120 degree turn, i think.

in the space of 1/4 mile.


Think outside the box! Don't do it with a curve to the north,
do with with a curve to the south - a spiral tunnel heading
down and round. Not only does that give you the space to
do it, but it spreads the height change out over a greater distance.


And it could call at Moorgate twice, just in case you missed your stop the
first time.

--
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