brad465
Veteran Member
I think a big problem Lewisham has is it is effectively the epicentre of bespoke infrastructure. Almost every junction in the area is a bespoke design, and when they go wrong, as many of them have done, it's a long repair job. One of the lesser-discussed benefits of the Bakerloo Line taking over the Hayes line is that multiple junctions in this area can be removed completely, reducing disruption from both faults and renewal blockades.I wasn't intending to associate Lewisham with the CX closure more to shine a spotlight on the multiple interventions that have taken place at Lewisham over the last few years and propose that a one hit blockades would be a better approach. It has been done for example on East London Line and Gospel Oak Barking. Yes you could rightly say the traffic levels arent as high but then neither are alternative forms of nearby public transport. SE IBU are certainly being bold with the CX closure and are actually putting in a very comprehensive alternative train plan that other operators could do well to emulate.
Preparation can certainly be achieved in advance but resignalling has to completed once youve disconnected the old signalling.
During the Parks' bridge closures for this work it's been possible to run both Hayes and Bexleyheath line trains to Victoria through the area. However it is certainly true that almost nothing can run to London Bridge and Cannon St, except via Greenwich, so would be very disruptive if done fully in conjunction with the Charing X blockade.Having Lewisham open is also needed to keep the remaining trains running into Cannon Street, those turned short at London Bridge, those running to Victoria and some of those diverted to Victoria (not via Herne Hill).
Lewisham interlocking covers quite close to Nunhead so there may be comissioning impacts on the Catford Loop. So this summer propably isn't a good time to do it...