Patent ID: 7117980

Claim:
A method of controlling an elevator installation operated with zoning and a changing of elevators at an interchange floor comprising: a) providing at least one feeder-elevator group for transportation to and from the interchange floor, the at-least one feeder-elevator group including a first plurality of feeder elevators which travel in a first zone of floors on one side of the interchange floor and to the interchange floor; b) providing at least one connecting-elevator group for transportation to and from the interchange floor, the at-least one connecting-elevator group including a second plurality of connecting elevators which travel in a second zone of floors on an opposite side of the interchange floor from the first zone and to the interchange floor; c) entering a trip destination via a destination-call input; d) allocating the entered trip destination to one of the feeder elevators depending upon at least one of a number of previously allocated trip destinations of each of the feeder elevators in the first zone and a number of previously allocated trip destinations in the second zone of each of the feeder elevators; and e) controlling the at least one feeder-elevator group and the at least one connecting-elevator group with a multigroup control to serve the entered trip destination.