The seats are actually quite roomy - check out the dimensions in the Hyperloop alpha document.
Claustrophobia has nothing to do with seat size. Imagine a failure mode where the power goes off, the screens die and all movement stops. And the only way to get out is someone on the outside with a power saw.
Yes, it does. Section 4.5.2. Same system as on an airplane.
And where do you think airplanes get their oxygen from? Its called the outside atmosphere. If a plane stops flying it descends to a lower height with a breathable atmosphere - something that the hyper loop can't do. And emergency oxygen in planes is predicated being able to descend to a safer level. So once the capsule stops the clock starts ticking until you run out of air. In this case the capsule is more comparable to a submarine than a plane.
It's two tubes, one for each direction. In the event of a long term outage, the one open tube can be periodically reversed to allow traffic in both directions, at a cost of throughput.
Still sucks to be stuck in the tube with the issues, and at 5 minute launch intervals, there will be a lot a of people in the same boat.
All capsules have mechanical braking systems and are spaced five minutes apart, automatically triggered in the event of an obstruction. They also all have powered wheels for low-speed travel. Section 3.5.2.
And the capsules are designed with a power budget that only covers the duration of the trip. They can't even accelerate to speed by themselves. Once they are stopped, the only way out is that worker with the power saw that I mentioned above.
It'd be nice if you'd read the document before complaining about the concept.
I did read the document several months ago when it was on here. I read it all in order to understand what it was about. And nowhere were any of these failure mechanisms addressed.
