The Germans build the Elevator Simulator tower :-)<br><br>Great invention. This type of flexible elevator will enable really tall buildings with multiple connections to other buildings.<br><br>It will also enable more elevator cabins in one building, so that there can be maybe 10 elevator rooms floating between levels in a circle. It would probably be more efficient too, if the elevator has to travel fewer levels, before the passengers get out.,(reply>), @Hart, Henry This would only work if there were one of those turning tracks at every floor, which would drive up cost to the point of infeasibility. maybe placing one every 5 or 10 floors might work but still substantially increases cost from the original 2 change point design that they seem to currently be using. I'm sure some industrial engineer could do the math to determine the optimal number of change points. I also think it would only really improve efficiency if there was at least one spare track which didn't stop at any floors but rather was used to allow elevators to pass each other so that if you have (for example) main 2 shafts and a third passing shaft and one of the mains broke down, the last remaining main shaft wouldn't be rendered useless by one of the cars breaking down on the track. This way you could achieve a degree of double fault tolerance in the system.,(reply>), Why just one building?  You could link buildings together with this.,(reply>), @Hart, Henry In theory that ought to reduce the amount of lift shafts used in a building as well. The higher you go, the more floor space you have to lose to them - hence express shafts. With this system I suppose you can do away with express lifts as well? That could very well bring down building cost as well.,(reply>), @Valy please be a little bit less arrogant,(reply>), @jort93z BINGO!