A new-build that has been mentioned from time to time, as in the following, but never had its own thread.
Who knows what might be possible in the post-Brexit, post-truth world? With all the cash we save by ceasing to be a partner in the largest market in the world, we could probably afford to reopen all these lines and more. Or we could just say we'd done it, and who'd know we were lying?
Yes, in Post-Briexit world we are opening and building huge railway lines - including the following
Slough to Heathrow Airport
Cambridge to Bedford via Sandy and Reading via Oxford
Crossrail
Crossrail 2 North London to South West London and Surry/Berkshire via Clapham Junction
Bakerloo Line to Hayes, Kent from Elephant and Castle
Thameslink 2000 now called Thameslink Project London St Pancras to Cambridge via a new tunnel which was live in 2015
and has not been opened until now and Finsbury Park
DLR▸ Extension to Plumstead and Thamesmead
Barking to Barking Riverside
Electrification between Gospel Oak and Barking in London
London Northern Line Extension to Battersea Power StationThe rerouting of the Metropolitan Line to Watford Junction in Watford
HS2▸ HS3 Crossrail across the North of England
New old line that could open again is
Creigiau to Cardiff Central via Pentyrch, Llantrisant, Talbot Green and Cardiff Queen Street
From
City a.m.The extension to the Northern line came a step closer to completion over the Christmas period as the first passenger trains completed journeys through the new tunnels.
Test trains entered the 3.2km of new track at Kennington, passing through Nine Elms station before arriving at the extension?s second new station at Battersea Power Station.