03-18-2012, 04:52 AM
There is a six part series currently running on BBC2 TV in UK called "The Tube". The episode I viewed last night #4/6 was about the rebuilding of Tottenham Court Road Station on the Victoria Line, and they had little narrowgauge tracks running into the tunnels to remove spoil and take materials in - much as would happen in a space station - Just a guess but I suspect it will be available on video shortly from the BBC -m you would want "The tube 2012". Note there was also a series of "The Tube" which was a rock show!!