I ride on a lot of elevators in a variety of buildings, but today I rode on some of the most interesting ones I've ever seen.
|The elevator is actually a bank of elevators. Each elevator is pretty typical, but it's the way they work together that's so interesting. The button panel to call the elevator isn't the usual pair of up and down buttons. Rather it's a list of floors, one button per floor--what's normally inside the elevator rather than on the wall outside. You push the button for the floor you want to go to. A display next to the buttons shows a letter and arrow indicating which elevator to go to. Sure enough, each elevator door has a different letter above it; you go to the elevator indicated on the display and wait for the elevator. When the doors open and you get on the elevator, there are no buttons to press to select the floor; rather a display shows the floors the elevator is going to, including yours. It's like the control system for the elevators is turned inside out, with the controls on the outside instead of the inside.|
According to Wikipedia, this is called a destination control system elevator:
Rather than pressing "up" or "down" in the lobby, and then indicating the destination floor once one has boarded the elevator, one may alternatively key in one's destination floor whilst in the lobby, using a central dispatch panel. The dispatch panel will then tell the passenger which elevator to use.
What's really cool about this approach is this: Since the elevator system knows where everyone's going (not just up or down), it groups people going to the same floor in the same elevator. Rather than getting on an elevator which stops on every floor, yours only goes to a couple of floors. This means the elevators travel less, saving energy, and elevator rides take less time.
|Schindler describes the advantages of destination control:|
Register your destination on a keypad before you enter the elevator.
I just think this is really neat and wish more large elevators systems (multiple elevator cars, lots of floors) worked this way. BTW, I'm also fortunate that I visited this building with a friend who'd been before and knew how this worked. Otherwise, I probably would've been pretty confused on how to simply use the elevator!