A method of optimizing the traffic control at a traffic signal-controlled intersection in a road traffic network. The vehicle traffic in entrances to the intersection are controlled by signal groups of a traffic signal system according to associated signal times. For vehicles approaching the signal group, traffic parameters are determined from traffic data using a traffic model according to the signal times, and in order to determine optimal signal times, the traffic parameters are weighted and added up and the target function formed in such a way is optimized by varying the signal times. By individually determining the traffic parameters for each vehicle and individually weighting the traffic parameters according to the strategic relevance thereof for the implementation of a specified traffic strategy, an improved implementation of the specified traffic strategy is made possible.
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