Modeling and Fuzzy Control of Artery System Using Colored Hybrid Petri Nets

Urban artery system, which is characterized by dynamic, concurrence and synchronization, is a hybrid dynamic system involving discrete and continuous behaviors. The dynamic actions of the urban artery system can be modeled through Petri nets. Therefore, modeling and control of the urban artery system based on Petri nets are discussed in this paper. First, a phase module is modeled using hybrid Petri nets according to modularization methods. Then, a distinct and readable model of the urban artery system is presented after coloring the phase module. Moreover, to scheme signal parameter, fuzzy theory is embedded into Petri nets by using fuzzy rules to define some transitions of Petri nets.