General > General Technical Chat
The Hyperloop: BUSTED
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EEVblog:

--- Quote from: wraper on January 21, 2018, 02:26:12 am ---You only need a relatively small fraction of usual maglev power to move the thing within vacuum / low pressure air. Therefore maglev part of the system becomes much cheaper. If you can keep the tube part reasonably priced, then it's more viable than pushing the air by brute force of full blown maglev.

--- End quote ---

Yeah, but regular Maglev has not taken off. Most of that seems to be the cost of new installation and lack of backward compatibility with existing rail networks. Operational cost seem fairly small in comparison.
Hyperloop may solve that small operational cost part and is guaranteed add a whole heap of extra cost, complexity, safety etc etc. It won't fly.
IanMacdonald:

--- Quote from: David Hess on January 21, 2018, 02:35:42 am ---I wonder though if the extra construction cost to produce the specialized track or partial vacuum tube in this case is insignificant compared to the costs of securing a high speed rail track and purchasing the right of way.

--- End quote ---

The Edinburgh trams are good case study of the gotchas in that. Cost now approaching a cool billion, I believe. To serve just one route.  :palm:

jonovid:
hyperloop may cost as much as the space shuttle program  :o 
total cost of all the dome airlocks  and all high pressure expansion joints.
and the maintenance costs too.
be cheaper for Elon Musk to offer everybody free air travel
David Hess:

--- Quote from: IanMacdonald on January 22, 2018, 05:03:19 pm ---
--- Quote from: David Hess on January 21, 2018, 02:35:42 am ---I wonder though if the extra construction cost to produce the specialized track or partial vacuum tube in this case is insignificant compared to the costs of securing a high speed rail track and purchasing the right of way.
--- End quote ---

The Edinburgh trams are good case study of the gotchas in that. Cost now approaching a cool billion, I believe. To serve just one route.  :palm:
--- End quote ---

San Fransisco's BART faced this because they used a track gauge wider than standard.  But that was just dumb because there was no reason to do so when standard gauge would have worked just as well and maintained compatibility with industry infrastructure.  I suspect this was just an exercise in legislative rent seeking rationalized by the "more comfortable ride" excuse and it is one of my favorite examples of why public mass transit projects are a waste of taxpayer money at least in the US where legislative corruption is the rule rather than the exception.

nctnico:

--- Quote from: jonovid on January 22, 2018, 05:35:37 pm ---hyperloop may cost as much as the space shuttle program  :o 

--- End quote ---
It wouldn't surprise me if more money got spend on crypto mining gear then the space shuttle program. You have to put things into perspective and modern day solutions get more expensive because the low hanging fruit when it comes to optimisations is long gone.
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