Abstract
The paper presents an application of hierarchical multi level system theory in network traffic control problem solving. Street network is represented by a directed graph. Nodes represent signalized intersections, and arcs represent street sections between adjacent signal ized intersections. Traffic process is described by delay-difference-of-offset functions. Loop constraints on offsets are incorporated in the model. The problem is to minimize loses (delay) in the network. Two-level hierarchical system structure is used in solving the problem. For subproblems coordination interaction balance principle is applied. It is shown that tasks performed by first and second level subsystems are quite simple, and suitable for real time control.
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