Combined Intelligent Control of a Signalized Intersection of Multilane Urban Highways

The paper treats the problem of intelligent traffic control at signalized intersections of urban highways and evolves the approach based on joint choice of the phase separation of passage directions and the durations of the traffic light cycle phases. The method is proposed for generation of the entire set of traffic separation schemes (TSSs) with a limited conflict level, the latter depending on the number of active conflict points of merging on traffic light cycle phases. The linear programming problem for determination of the most efficient parameters of the traffic light cycle for a given TSS is formulated; its solution is recommended to be used for the choice of preferable safe TSS for the established traffic demand. Besides, a principal way of corrections of the phase durations of the current cycle depending on composition of vehicle queues on intersection entries is proposed; simulation techniques for this objective are discussed. Aspects of "education" of drivers that provides the efficiency of the combined intelligent control of signalized intersections are discussed.