This paper presents a novel approach to road-traffic control for interconnected junctions. With a local fuzzy-logic controller (FLC) installed at each junction, a dynamic-programming (DP) technique is proposed to derive the green time for each phase in a traffic-light cycle. Coordination parameters from the adjacent junctions are also taken into consideration so that organized control is extended beyond a single junction. Instead of pursuing the absolute optimization of traffic delay, this study examines a practical approach to enable the simple implementation of coordination among junctions, while attempting to reduce delays, if possible. The simulation results show that the delay per vehicle can be substantially reduced, particularly when the traffic demand reaches the junction capacity. The implementation of this controller does not require complicated or demanding hardware, and such simplicity makes it a useful tool for offline studies or real-time control purposes.
Coordinated road-junction traffic control by dynamic programming
IEEE Transactions on Intelligent Transportation Systems ; 6 , 3 ; 341-350
2005-09-01
305662 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Coordinated Road-Junction Traffic Control by Dynamic Programming
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