Would a Victoria line extension into South London along with the Bakerloo line be beneficial? : r/LondonUnderground

Is TFL planning any Victoria line extensions? If so, where to? And if not, any fan theories of locations? - Quora

London Underground: All the symbols on the new Tube map and what they mean - MyLondon

Better Connected South London : r/LondonUnderground

Victoria line - Wikipedia

Tube History: A Brief History of the Victoria Line - Londontopia

RIP the Tube Improvement Plan, Long Live New Tube for London - London Reconnections

Jonn Elledge: Which is London's fastest Tube line? - OnLondon

Rare version of Harry Beck's iconic Tube map emerges for sale for £20,000

Tube trivia and facts - Made by TfL blog

Bakerloo line extension - Transport for London