if we could build a magic teleporter to take folks from one side of downtown to the other, with an option to port into downtown somewhere in the middle, would be ideal.
my mistake then, I thought they dug some for the Bart System.
I know that Bart is the best system on the planet. (or was in 2000, when I read the mass transit reports then). And we aren't going to have anything to rival it, this area won't approve that cost.
Construction began on the Oakland subway in January, 1966. November of that year saw the first of 57 giant steel and concrete sections of the 3.8-mile transbay tube lowered to the bottom of the Bay by a small navy of construction barges and boats.
Yeesh, are you serious about BART being the best mass transit system in the world? I don't think it's even the best in the US, NYC's subways or even DC's Metro are better. BART stops at 1AM, for pete's sake. London's Underground is the best system I've ever seen, but then, I've never been to Paris.
Speaking of Fill dirt, how safe do you think it is to have all the weight of the viaduct plus traffic on a footprint the size of a viaduct pillar?
Wouldn't it be safer to cut and cover so the weight is distributed over a larger surface area?
And speaking of cut and cover, how deep do you think the fill dirt is? Would the depth of a cut and cover tunnel expand below the total depth of the fill dirt?
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if we could build a magic teleporter to take folks from one side of downtown to the other, with an option to port into downtown somewhere in the middle, would be ideal.
Not gonna happen.
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http://www.jrtr.net/jrtr02/pdf/photo.pdf
New York have quite a few tunnels linking Manhattan to the other areas.
http://nyctmc.org/xmanhattan.asp
What existing building would it be digging under?
Didn't the Bus Tunnel Also dig under buildings?
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and again, both of the areas you have listed is digging in areas that are far more solid than this area is.
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Not very solid.
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I know that Bart is the best system on the planet. (or was in 2000, when I read the mass transit reports then). And we aren't going to have anything to rival it, this area won't approve that cost.
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Construction began on the Oakland subway in January, 1966. November of that year saw the first of 57 giant steel and concrete sections of the 3.8-mile transbay tube lowered to the bottom of the Bay by a small navy of construction barges and boats.
An interesting read;
http://www.bart.gov/about/history/history_3.asp
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London's Underground is the best system I've ever seen, but then, I've never been to Paris.
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most *useful*, well.. that's another story. ;)
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Wouldn't it be safer to cut and cover so the weight is distributed over a larger surface area?
And speaking of cut and cover, how deep do you think the fill dirt is? Would the depth of a cut and cover tunnel expand below the total depth of the fill dirt?
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