Elevator group management for occupant evacuation

A control system of a building elevator system, the control system comprising:

• a processor;
• and
• a memory comprising computer-executable instructions that, when executed by the processor, cause the processor to perform operations, the operations comprising:
• determining that an evacuation call is active for an evacuation floor serviced by a first elevator group;
• setting a transfer floor serviced by the first elevator group as an evacuation discharge floor of the first elevator group;
• requesting a second elevator group to enter an evacuation mode of operation, the second elevator group operable to service the transfer floor and a discharge floor;
• setting the transfer floor as the evacuation floor of the second elevator group;
• and
• coordinating control of the first elevator group and the second elevator group to evacuate one or more occupants from the evacuation floor serviced by the first elevator group to the discharge floor serviced by the second elevator group.

A computer program product tangibly embodied on a computer readable medium, the computer program product including instructions that, when executed by a processor, cause the processor to perform operations comprising:

• determining that an evacuation call is active for an evacuation floor serviced by a first elevator group;
• setting a transfer floor serviced by the first elevator group as an evacuation discharge floor of the first elevator group;
• requesting a second elevator group to enter an evacuation mode of operation, the second elevator group operable to service the transfer floor and a discharge floor;
• setting the transfer floor as the evacuation floor of the second elevator group;
• and
• coordinating control of the first elevator group and the second elevator group to evacuate one or more occupants from the evacuation floor serviced by the first elevator group to the discharge floor serviced by the second elevator group.