An elevator group comprising at least two elevator cars (Car1, Car2) is controlled using a group control unit which allocates the calls to different elevators. Based on statistical data and/or statistical forecasts, a virtual passenger traffic is generated and simulation is applied to create events in the virtual passenger traffic, on the basis of which an elevator-specific cost is computed for each call to be allocated. Based on the costs, the best elevator is selected to serve the call.
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