Deep Level , I believe the plan from the NSE era was for an East-West link that in the central section is not too dissimilar from what is being built today with the core section linking Paddington to Liverpool Street aswell as incorporating metro services on the GEML and GWML. The main difference is that there was no branch South East of the river and a proposal to have a branch up to Aylesbury and Chesham, I cannot recall whether the cessation/curtailment of Met line services was included in this proposal but it would certainly seem likely given that it was a joint proposal from LU and NSE.
Post by norbitonflyer on Dec 21, 2017 15:51:49 GMT
The Aylesbury branch was to have used the Dudding Hill line. I think at the time closure of Marylebone was being seriously considered, and Crossrail was seen as a way of maintaining a service to Aylesbury. (The Wycombe line could also have been served that way, but I'm not aware of any plans to do so).