This design includes three interfaces. Two outside the elevator, one to the right of the elevator doors and one above the elevator doors, and one inside the elevator to the right of the elevator doors.
Outside the Elevator: Right of Doors
This is a touchscreen interface that initially displays all floors in order, starting from the bottom left. When a user presses one of the floor buttons, the button is replaced with an arrow indicating the direction of their target elevator, a letter corresponding to the label of the target elevator, and a length of time inhey have to reach their elevator. Since this interface uses a screen, the arrow will be three dimensional. This will allow the screen to better indicate the precise direction of their new elevator. Each elevator will be labeled with a letter. The letter on the screen will be the same as the letter on the elevator the user must take. The letters will also be color coded, both in the interface and on the signs indicating which elevator is which. Finally, the time shown will be a reasonable estimate of the amount of time left until the elevator arrives.
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