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comment by Meriadoc
Meriadoc  ·  4125 days ago  ·  link  ·    ·  parent  ·  post: Hyperloop | SpaceX

My comment on the other thread:

"Here's the complete proposal: http://www.spacex.com/sites/spacex/files/hyperloop_alpha-201.... It's absolutely incredible. Low pressure tube that overcomes air pressure in a tube by having lateral fans push the small amount of air through the capsules, while the capsules is elevated on a small cushion of air produced by the capsule itself, essentially like an air hockey table, but the puck is providing the air. With electric motors like the ones in the Tesla Model S, as well as solar panels on the top of the tube, it would be completely capable of providing all the energy needed to power it. The tube would be built on pylons following I-5 (essentially a straight line) from SF to LA and be capable of covering the distance in half and hour. Since the tube is on pylons, there is little cost in buying land, drastically reducing cost. The entire proposal would cost $6 billion dollars, compared to the current proposed "bullet" train that would cost 68 billion. A one-way ticket would cost around $20. Since the tube is extremely simple, upkeep would be extremely minimal, and the chance of failure in the tube or capsule is very small. Absolutely astounding."





blackbootz  ·  4125 days ago  ·  link  ·  

The link you provided is cut, ends in "..."

But yea, you nailed it. 68 billion for the bullet train? Whew. For less than 10% of the cost, you could revolutionize transportation. The only thing I wonder, is 840 passengers per hour enough?

    Assuming an average departure time of 2 minutes between capsules, a minimum of 28 passengers per capsule are required to meet 840 passengers per hour. It is possible to further increase the Hyperloop capacity by reducing the time between departures. The current baseline requires up to 40 capsules in activity during rush hour, 6 of which are at the terminals for loading and unloading of the passengers in approximately 5 minutes.

That isn't nearly enough traffic. How many thousands travel between LA and San Fran every day?

Meriadoc  ·  4124 days ago  ·  link  ·  

Strange it didn't work, but this one does:

http://www.spacex.com/sites/spacex/files/hyperloop_alpha-201...

    That isn't nearly enough traffic. How many thousands travel between LA and San Fran every day?

It actually is. He addressed it in the paper, but the current yearly number of travelers between them is 6 million people. This facilitates 7 million and some change. He also noted that this would obviously increase the desire to make that trip, and the Hyperloop is capable of increasing the number of passengers as that occurs.

thenewgreen  ·  4125 days ago  ·  link  ·  

I would be interested in knowing capacity vs need. How many can fit in the vessel etc. Also, you can't define "need" just in the terms of how many people currently travel from LA to SFO. This type of speed and reduced cost will have people flying in to SFO to go to surrounding areas as well. Also, demand will increase with lower cost and quicker ease of travel. Got to think big, cross country travel. I see some eminent domain in the future of this and eventually LA to NYC.

LA and SFA is a good start though.