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A comment on ThyssenKrupp Multi – world’s first rope-free elevator [video]. Parent comment

Re:ThyssenKrupp Multi – world’s first rope-free elevator [vi... by DenisM on Saturday August 05, 2017 @02:16PM (#14937053)
Perhaps you could just hang two elevators on one set of cables in the same shaft? They will have to move in sync and the range will be cut in half, but the throughput will nearly double during the rush hour. In a tall building could be an acceptable tradeoff.
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Re:ThyssenKrupp Multi – world’s first rope-free elevator [vi... by wlesieutre on Saturday August 05, 2017 @04:14PM (#14937657)
https://en.wikipedia.org/wiki/Double-deck_elevator is like that, but right on top of each other so the range isn't reduced.

Most people are going between the ground floor and whatever floor their destination is on, so a shaft with two cars that go 0-50 and 51-100 wouldn't be very useful.

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Re:ThyssenKrupp Multi – world’s first rope-free elevator [vi... by willyt on Sunday August 06, 2017 @04:29AM (#14940406)
Actually it's quite common to have cars in the same 'shaft' serving a subset of floors. The original world trade centre towers pioneered this system. Express elevators take you to transfer lobbies and then you transfer to local elevators for intermediate floors. The locals for different sets of levels occupy the same footprint within the building.
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Re:ThyssenKrupp Multi – world’s first rope-free elevator [vi... by DenisM on Saturday August 05, 2017 @05:44PM (#14938083)
Indeed. Same article also covers shared-shaft elevators, exactly as I described.
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Re:ThyssenKrupp Multi – world’s first rope-free elevator [vi... by wlesieutre on Saturday August 05, 2017 @11:57PM (#14939583)
Ah, sky lobbies are a neat solution to get more efficient use out of the two elevators, I've never encountered one of those!
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Re:ThyssenKrupp Multi – world’s first rope-free elevator [vi... by jdavis703 on Saturday August 05, 2017 @02:49PM (#14937242)
That makes it a lot harder to have a dramatic lobby, which is an important component of most skyscrapers.
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