Hyperloop and other vactrains

General discussion of passenger rail proposals and systems not otherwise covered in the specific forums in this category, including high speed rail.

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Re: Hyperloop and other vactrains

Postby bostontrainguy » Mon Oct 22, 2018 10:26 am

Update: https://www.yahoo.com/news/elon-musk-15 ... 53953.html

Not terribly sure what happens when all these cars get dumped out at the end of the tunnel? If they dump out inside a parking garage it just might work.
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Re: Hyperloop and other vactrains

Postby ConstanceR46 » Mon Oct 22, 2018 3:02 pm

That's a bus.
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Re: Hyperloop and other vactrains

Postby mtuandrew » Mon Oct 22, 2018 9:21 pm

ConstanceR46 wrote:That's a bus.

A very fast bus.

I’ll be very interested to see this thing in action, and to figure out what makes it special.
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Re: Hyperloop and other vactrains

Postby bostontrainguy » Tue Oct 23, 2018 5:03 pm

Could actually have a future:

https://www.smh.com.au/national/nsw/st- ... 5073u.html

P.S. Boston proposed a similar plan for the abandoned Greenline tunnel under Tremont Street.
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Re: Hyperloop and other vactrains

Postby ConstanceR46 » Tue Oct 23, 2018 5:42 pm

Tesla cars have barrier lust already. This is not going to end well.
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Re: Hyperloop and other vactrains

Postby mtuandrew » Tue Oct 23, 2018 7:39 pm

ConstanceR46 wrote:Tesla cars have barrier lust already. This is not going to end well.

I also want to see the safety system - something tells me it isn’t triple-failsafe like most transit operations. (Operator + deadman + Automatic Stop)
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Re: Hyperloop and other vactrains

Postby djlong » Tue Oct 30, 2018 9:52 am

It's just that I see all kinds of "American't" when it comes to stuff like this.

Keeping this on Hyperloop - 'they' said it would never happen; that it was just a white paper. There'd never be a prototype or anythign close to it.

Well, now we have prototypes, including full-scale models. Bit by bit, piece by piece, it's happening. So far, nobody seems to have run into any showstoppers. That's not to say they *won't* - but let them keep trying until they do.

As far as the 'other' tunnel, in LA, yeah, I see endpoint congestion there until mroe details get worked out. It reminds me of the tunnel under the Elbe in Hamburg - where cars line up at elevators to descend into the tunnel, drive through, and drive onto another elevator at the other end. (Rather interesting tunnel to walk through).
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Re: Hyperloop and other vactrains

Postby lpetrich » Fri Nov 09, 2018 10:40 am

djlong wrote:It's just that I see all kinds of "American't" when it comes to stuff like this.

Keeping this on Hyperloop - 'they' said it would never happen; that it was just a white paper. There'd never be a prototype or anythign close to it.

Have Hyperloop proponents done anything close to a feasibility study? Any attempt to estimate construction costs? Operation costs? Safety and reliability? In my previous posts here, I have done some estimates of construction costs and I have brought up safety and reliability issues.

I've seen the argument from Elon Musk supposedly being a business genius, and the related argument that Tesla Motors and SpaceX have succeeded despite the numerous criticisms that they have received. But as Carl Sagan noted about laughing at new ideas, "they also laughed at Bozo the Clown". Also, philosopher Bertrand Russell once noted that "There are infinite possibilities of error, and more cranks take up fashionable untruths than unfashionable truths."

Well, now we have prototypes, including full-scale models. Bit by bit, piece by piece, it's happening. So far, nobody seems to have run into any showstoppers. That's not to say they *won't* - but let them keep trying until they do.

Many of the problems with the Hyperloop only appear when one goes to large scale.

As far as the 'other' tunnel, in LA, yeah, I see endpoint congestion there until mroe details get worked out. It reminds me of the tunnel under the Elbe in Hamburg - where cars line up at elevators to descend into the tunnel, drive through, and drive onto another elevator at the other end. (Rather interesting tunnel to walk through).

So its elevators lower cars from street level to tunnel level, and also raise cars from tunnel level to street level?
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