Abstract: Devices, methods and computer programs for elevator call allocation with stochastic multi-objective optimization are disclosed. At least some of the disclosed embodiments allow an elevator group control to take into account knowledge about possible future passenger arrivals when allocating new calls. At the same time, the new elevator calls can be allocated via optimizing multiple objectives, such as the waiting time, the time to destination, and/or the energy consumption. In other words, the invention makes it possible to both take into account the uncertainty related to future passengers and control the trade-off between different optimization objectives.

Abstract: Various example embodiments relate to control of passenger traffic group systems. In particular, some example embodiments relate to eliciting user preferences for call allocations for the passenger traffic group system. At least one user preference may be considered when determining a set of candidate control parameters for the passenger traffic group system. At least one representative of the operation of the passenger traffic group system may be displayed to the user based on a simulation of the passenger traffic group system. The user may be enabled to accept the candidate control parameters or modify the user preferences to generate a further set of candidate control parameters. Apparatuses, methods, and computer programs are disclosed.