Abstract
This paper focuses the traffic lights control system on the model of Timed Coloured Petri nets (TCPN). The applications of TCPN in six-phase and two-phase traffic lights are illustrated. The analysis of the control TCPN models is performed to demonstrate how the models enforce the signal lights’ transitions by Occurrence Graphs (OG) method. And then the relations of the liveness and reversibility of the control TCPN nets will be obtained. Finally, an urban traffic lights control system with nine intersections will be realized. To our knowledge, it is the first work that to employ TCPN obtains the model of an urban traffic control system.
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