will hyperloop be the only martian transportation one day? imagine there being a grid of hyperloop to take all over the planet. it's also free of those pesky seas.
Thus making it a monorail, rather than a Hyperloop.
On Mars, you don't need the top half of the hose because it's already low-pressure, so the ramjet hovercraft could run in an open-air trough.
Honestly though, this whole idea smells like technofuturism to me. High-speed trains are hard, and this is being sold as being easy and sexy and futuristic. However, if you do the math out, the capacity isn't nearly as good as modern trains - which is literally the entire point of a train. That means Hyperloops are sort of like making a really cheap airplane that doesn't fly. The whole world is not the web, and there are legitimately difficult problems out there, particularly in transportation.
The hype around the idea is absurd, and it sounds like at least 1 of the companies that took money to work on it was a scam.