Why the London Underground doesn't stop in south east London or get anywhere near Kent - Kent Live
London Underground's Northern line extension comes into service | TfL | The Guardian
New Tube stations open at Battersea and Nine Elms in south London as first passengers use Northern line extension | UK News | Sky News
The South London-biased Tube Map
The 5 London Underground line extensions that are most likely to happen - MyLondon
6 projects that will change the face of the London Underground map forever - MyLondon
A Look At The Future Of London's Transport | Londonist
South London line - Wikipedia
London Bets $1.5 Billion Tube Extension Will Spur Jobs, Business - Bloomberg
Bakerloo line extension: Everything you need to know about TfL's £3.1bn Tube plan for south-east London | London Evening Standard | Evening Standard
The Tube Map In 2040 Is Going To Be Pretty Intense - Secret London
TfL applies for Northern Line extension legal powers | News | Railway Gazette International
The Tube Map In 2040 Is Going To Be Pretty Intense - Secret London
Forget Crossrail, Boris Johnson proposes south London Tube extension to Camberwell, Lewisham and Bromley
London Underground Northern Line design
Northern line extension: Two new Tube stations open - BBC News
The 5 London Underground line extensions that are most likely to happen - MyLondon
The Northern Line Extension: A challenge for mapmakers and for social equality – Geography Directions
Bakerloo Line extension and Crossrail 2: How London's transport networks could expand in future | The Independent
There's a new London tube map including the Crossrail Elizabeth Line
A Look At The Future Of London's Transport | Londonist
New Northern Line stations spark criticism for 'revolting' change to Underground map | The Independent
Harlow Council lobbying for a London Underground extension
