K.I.S.S. seems to me the more working parts the more opportunity for failure.,(reply>), Of course. But while the individual parts may be more complex, my guess would be if the network as a whole is well designed this will be more robust in aggregate than individual lift shafts.<br>(also takes up way less space, since you can run multiple cars in a single shaft)<br><br>An elevator shaft contains a single elevator and occupies a shaft the length of the whole building.<br>This, opens up so many new options the added complexity is probably worth it.<br><br>I mean, an aircraft is more complex than a rickshaw too, but that doesn't mean aircraft are a bad idea...