my main question is why do we need/want Sideways elevator? from what it looks the car has to go to the floor then rotate then travel again to the side for how ever long, im sure most people could out walk it. and the inconvenience to the other riders, again car goes to the floor then rotate then travel to the side opens, then has to travel back to its line rotates again then back up.,(reply>), Probably so you can have multiple elevators per shaft going up and down which increases the transport capacity of the entire system.,(reply>), This would be a great way to reduce congestion in high towers where you can only have 1 elevator per shaft. If a tower has 100 floors, a trip up and down can easily require a) too many elevators and b) lots of time. <br><br>Better efficiency is how money is made, because time is money of course.