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Jan 24, 2017 at 11:35 comment added ohwilleke The energy to power ratio could be much greater than a maglev because a la hyperloop, you could reduce or eliminate air resistance by removing air from the tubes. The initial proposed hyperloop line in Bahrain is supposed to go 99 mies in 12 minutes, which is 600 mph (1000 km) and 1200 miles (2000 km) in two hours. Even if stops at junctions and turns slowed that up a great deal, something like 1000 km ought to be feasible with not very much more advanced than current technology. Building structures that big would be far more challenging than building elevators that fast.
Jan 23, 2017 at 16:54 comment added SIGSTACKFAULT IMHO you could go 200kph in an urban zone with junctions -- By avoiding junctions. Cloverleaf tubes!
Jan 23, 2017 at 16:31 comment added o.m. @Separatrix, 150 is right between 100 and 200. I won't quibble over 25%, you might well be right.
Jan 23, 2017 at 10:00 comment added Separatrix Not even that in urban zones, the tubes might eliminate dogs in the road but you still need to move slowly enough to corner and stop comfortably at every junction. I'd say max 150kph, rarely above 80kph. I say this from a European perspective where I laugh at the concept of a straight line in an urban area and the whole thing is an urban area.
Jan 23, 2017 at 6:24 history answered o.m. CC BY-SA 3.0