1 online resource (streaming video file) (29 min. 2 sec.) ; 169341823 bytes
Series
Great British Railway Journeys ; Series 9, Episode 2
Summary
Improvements to the London Underground in the early 20th century gave us a network of electric railways, which shaped our modern capital. Inside London's newest rail tunnel, Michael meets engineer Jonathan Cooper, to discover more about current improvements to London's oldest deep-level tube line, the Northern line, which is being extended