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A Moorgate to London Bridge Tunnel (Old chestnut)
On Wed, 13 Oct 2004, John Rowland wrote:
"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. If it's good enough for Monument (on the Tyne & Wear Metro), it's dashed well good enough for Moorgate! tom -- I'm angry, but not Milk and Cheese angry. -- Mike Froggatt |
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