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#1
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West London Line - what recession?
On Oct 29, 9:51*am, Jamie Thompson wrote:
On 29 Oct, 15:22, E27002 wrote: Rather than build a new tunnel from Kings Cross to Bermondsy, would it not be easier to extend the GN Electric tunnel from Moorgate? It might seem so, but things to consider: a) It's size cannot handle OHLE, which any new infrastructure should be built to support (one day the southern network will be brought into line ) b) It has metro station-spacing, unsuitable for a service serving an area as wide as Thameslink (Cambridge to Essex Road, anyone?). c) Said station are too short, and would be expensive to extend. d) Closing said stations to remedy b&c would be unpopular with existing users. ...and finally, e) Extending the tunnel from Moorgate means cutting through both the planned Crossrail station's escalators, as well as the Northern line tunnels. Ergo, I think a new Crossrail-gauge tunnel from either Finsbury or Ally Pally would be best, with stations at Finsbury Park, Moorgate- Bank, Cannon Street-London Bridge, and Surrey Canal Junction. However, either tunnel option would miss out on interchanging with KXSP, forcing an interchange at Liverpool St. and a trip back along the Circle. My preference for the NC tunnels would still have to deal with e), but covering the other considerations, would be to link it to the W&C, and from Finsbury up to Highgate, then along back to Ally Pally, before taking over the majority of the Hertford loop. Plans for the other end of the W&C take it down to Clapham and off elsewhere...but that's another thing entirely.- IIRC because of the way it is configured, extending the W&C from Waterloo would be very difficult. There was once talk of adding a W&C station at Blackfriars. That idea may have merrit. But there would be little return for the very high investement. |
#2
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West London Line - what recession?
On 29 Oct, 17:05, E27002 wrote:
On Oct 29, 9:51*am, Jamie *Thompson wrote: On 29 Oct, 15:22, E27002 wrote: Rather than build a new tunnel from Kings Cross to Bermondsy, would it not be easier to extend the GN Electric tunnel from Moorgate? It might seem so, but things to consider: a) It's size cannot handle OHLE, which any new infrastructure should be built to support (one day the southern network will be brought into line ) b) It has metro station-spacing, unsuitable for a service serving an area as wide as Thameslink (Cambridge to Essex Road, anyone?). c) Said station are too short, and would be expensive to extend. d) Closing said stations to remedy b&c would be unpopular with existing users. ...and finally, e) Extending the tunnel from Moorgate means cutting through both the planned Crossrail station's escalators, as well as the Northern line tunnels. Ergo, I think a new Crossrail-gauge tunnel from either Finsbury or Ally Pally would be best, with stations at Finsbury Park, Moorgate- Bank, Cannon Street-London Bridge, and Surrey Canal Junction. However, either tunnel option would miss out on interchanging with KXSP, forcing an interchange at Liverpool St. and a trip back along the Circle. My preference for the NC tunnels would still have to deal with e), but covering the other considerations, would be to link it to the W&C, and from Finsbury up to Highgate, then along back to Ally Pally, before taking over the majority of the Hertford loop. Plans for the other end of the W&C take it down to Clapham and off elsewhere...but that's another thing entirely.- IIRC because of the way it is configured, extending the W&C from Waterloo would be very difficult. *There was once talk of adding a W&C station at Blackfriars. *That idea may have merrit. *But there would be little return for the very high investement. Quite. This conversation's been done to death elsewhere before, but IIRC, it's only an end-on junction at Waterloo that's problematic. Diverging just before should be relatively trouble-free compared to the hell of what awaits at the Bank end. I must say though, I am fond of the concept of a Blackfriars W&C station. The current-ish alternatives from Waterloo are a 16 minute walk, a trip to Embankment then (once it reopens!) along to Blackfriars, or amusingly...a trip to London Bridge, then a clipper to Blackfriars. Certainly not worth it as an isolated project on such a short line, but as part of a wider extension, it would stop passengers from Waterloo clogging up both Waterloo station and the Circle line's capacity (there's ample capacity between Waterloo and Embankment for that bit not to be an issue though). |
#3
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West London Line - what recession?
On Oct 29, 10:42*am, Jamie Thompson wrote:
This conversation's been done to death elsewhere before, but IIRC, it's only an end-on junction at Waterloo that's problematic. Diverging just before should be relatively trouble-free compared to the hell of what awaits at the Bank end. I must say though, I am fond of the concept of a Blackfriars W&C station. The current-ish alternatives from Waterloo are a 16 minute walk, a trip to Embankment then (once it reopens!) along to Blackfriars, or amusingly...a trip to London Bridge, then a clipper to Blackfriars. Certainly not worth it as an isolated project on such a short line, but as part of a wider extension, it would stop passengers from Waterloo clogging up both Waterloo station and the Circle line's capacity (there's ample capacity between Waterloo and Embankment for that bit not to be an issue though). Hadn't really seen anything elsewhere, but, I do not follow every thread. If it can be done extending the W&C may make more sense that the westward Northern Line extension discussed here recently. A frequent tube service continuing to, and replacing, Vauxhall station, and both Battersea stations (at a new central location convenient for the new US embassy), would be useful and free up the SW mainline approach to Waterloo. It could continue to Wimbledon by surfacing before Clapham junction and using the outside pair to reach Putney, and then on to Wimbledon by sharing the District tracks. |
#4
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West London Line - what recession?
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