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West London Line - what recession?
"Paul Scott" wrote Use the current platform while rebuilding the old platform to modern standards over the necessary length, say 8 coaches? A temporary, moveable flat bridge would be needed to access the currently in use platform. Demolish half the current platform (you'd to retain a four coach lengh for the current service) and provide the new running line in front of the renewed old platform, as a short platform loop off the through line. Then demolish the remaining current platform and extend the loop to whatever length you want to allow for increase line speeds on entry/exit. Alternatively, having completely rebuilt the old platform, demolish the current platform and provide the full length loop in a 'big bang' closure of a few weeks. I also suspect that if they were to do it now, the weekday timetable could be worked with one platform. Once the LO service frequency is doubled that will probably no longer be possible. It could be done, but sounds disruptive and/or expensive. But what's the point? There's no need for passenger trains to be able to overtake each other on the WLL. There is occasionally a need to recess a freight to match a path on the next stage of its journey. In many cases this can be done at Willesden/Wembley, or between Culvert Road and Latchmere Junctions (even when ELLX gets to Clapham Junction). The existing through line at Kensington Olympia can be used in both directions. If more flexibility is needed the pointwork at each end of Kensington Olympia could be relaid to reduce conflicts between up and down train (at present a southbound train using the through line conflicts with a northbound train at, IIRC, both ends of the station). Or a new goods loop could be provided south of the station. Peter |
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