September 1, 2015 2:09 PM EDT
You say culture, but then you just list a bunch of buildings, buildings aren't exactly culture, just saying. What I was discussing was the influence of 1950's American Culture, particularly the baby boomer middle class move to the suburbs. London would have culture of course, it just wouldn't be Fallout.
As far as the tubes being similar to vaults......not really. The tubes were always designed with open entrances, made for transportation purposes primarily, contain no support elements (water purifiers, living quarters, etc.). The vaults were designed as full-encompassing living arrangements that would be sealed prior to the bombs.
Also the tubes were used as shelters against conventional bombings during WW2, not Nuclear Fallout, the vaults are designed to withstand Radiation (assuming they weren't designed to fail on purpose).
Using the tubes you could have metro: last light in London, not so much Fallout.
Like I said in my original post, I'm certainly not against a post-apocalyptic game set in a devastated London, it just wouldn't be Fallout.