I just found these nifty pics of the "Regierungsbunker" that was built in the 60's as a nuclear bombshelter: http://einestages.spiegel.de/static/topicalbumgallery/1613/deutschlands_geheimer_superbunker.html Unfortunately the whole article is in German, but you might enjoy the pictures as well. Facts: The bunker was 83.000 sqare metres big and had 5 self-sufficient zones with 936 beds, 897 offices, 25.000 doors, 5 command posts and hospitals, a fire service, a church... well it did cost several billion Euros to built but it wouldn't have survived a direct hit by a warhead with more then 20 kilotons of tnt. So basically it was useless since most warheads were significantly bigger by that time and spies from the GDR already infiltrated the bunker while it was being constructed.
I don't have the patience to read the whole story through, but 17 km tunnels and 5 mil. german marks to build it is a wow. It looks amazingly similar ti the Vaults, but then agian, that's the way it should be.
These bastards. We would die on the surface and the "elite" would sit in their vault. Well, but it is reassuring to know, that this installation would also collaps after a nuclear exlosion and they all will die too. :>
You would have died instantly or in a week. They would have been dying for months (and waiting for months to die, something like a death row).
If a nuclear bomb would explode over the bunker, they also wouldn't life that long, because the bunker is not deep enough unter the earth. And there will be also the EMP, that would effect the hole equipment. (Telecommunications technology, ventilation, pumps and so on.)
EMP doesn't affect most of the equipment - these things are pretty rugged, their computers won't work, but the ventilation probably would, it's not that complicated (a powerful diesel engine, usually quite old as to construction).