Posted Jul 19, 2007, 11:37 PM
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Unregistered User
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Join Date: Mar 2007
Location: Sun Diego
Posts: 39
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Quote:
Originally Posted by bmfarley
As for some type of rail service to transport users, baggage, employees, and airport supplies/freight to the floating facility... that would be exhorbantly expensive. I'll guess $500m per mile to construct. 10 miles and we're talking $5 billion for the rail line. I am sure travel time to the airport would be at least 5 minutes, maybe 10 or more depending on the design speed and technology used.
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according to Float Inc. it is a bit less than $500 per mile (note: their proposal is 3 miles off-shore)
Quote:
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By way of comparison, the cost of the recently completed, sunken tunnel between Denmark and Oresund, Sweden was 483.5 million for 3.5 kilometers. It is not valid to assume a linear cost per mile comparison, longer tunnels should cost less per mile, but even ignoring that, using the 30% reduction for floating, and considering that the Oresund tunnel has two land transitions, the 540M estimate is reasonable.
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btw, their rendering:
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