Method of allocating elevator cars to operating groups of a destination call control

A method of allocating a plurality of elevator cars to operating groups of a destination call control, the elevator cars of an operating group executing travel tasks for specific zones or floors, comprising the steps of:

• a. providing an operating group (EXP) for long-distance trips, an operating group (LOC) for local trips, and a group (FREE) for free elevator cars;
• b. dynamically allocating each elevator car of a plurality of elevator cars to one of the groups based upon at least one dynamic parameter;
• and
• c. responding to an occurrence of a travel task by re-allocating one of the cars previously allocated to one of the groups to one of the EXP and LOC operating groups to perform the travel task.

A method of allocating a plurality of elevator cars to at least two operating groups of a destination call control, elevator users communicating destination floors to the control within an access zone of the elevators, the elevator cars of an operating group executing travel tasks for specific zones or floors, comprising the steps of:

• a. allocating each elevator car of a plurality of elevator cars to one of the at least two operating groups based upon at least one of the following criteria;
• ii. providing an average waiting time of each of the at least two operating groups,
• iii. providing a status of a quantity counter of each of the at least two operating groups,
• iiii. determining a ratio of the average waiting times of the at least two operating groups, and
• iiv. determining a ratio of the status of the quantity counters of the at least two operating groups;
• and
• b. responding to an occurence of a travel task by re-allocating one of the cars previously allocated to one of the at least two operating groups to the other one of the at least two operating groups to perform the travel task.