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Mar 14, 2017 at 17:25 comment added Rozwel I have read Heinlein's version of the system more recently than Asimov's, but my memory is that certain tracks had partitions running in line with them so that air currents could be matched to the average speed of the tracks for that section. A constant 10kph wind for the 0-20kph section, a 30kph wind for the 20-40 section, etc.
Mar 14, 2017 at 1:05 comment added ShadoCat Yes but it would still be a barrier. You see it now with railroad tracks that you can drive over. If you have ever heard the term "the bad side of the tracks," even a purely psychological barrier can have a big impact.
Mar 14, 2017 at 0:53 comment added Peregrine Rook Building bridges over and/or tunnels under the train track is a simple matter.
Mar 14, 2017 at 0:41 comment added ShadoCat It's been a while since I read those. Even so, can you imagine the wind in whatever tunnel they are running the trains in?
Mar 13, 2017 at 22:09 comment added Mark As I recall, Heinlein's roads (and Asimov's) were enclosed.
Mar 13, 2017 at 20:41 history answered ShadoCat CC BY-SA 3.0