ON TRAFFIC LIGHT CONTROL OF REGULAR TOWNS

We present a hierarchical way to design the light control of the traf- fic of a town. We first describe a model of traffic light synchronization based on Petri net modelling and max-plus algebra. Based on this modelling we decom- pose the problem in three parts : -computation of the cycle length of each traffic light, -computation of the starting time of each traffic light cycle, -computation of the proportion of the green and red phases. The example of the Bahia Blanca argentinian town is given.