摘要:In this paper, we present a method to calculate, the road urban traffic congestion using CRONOS model. For the model simulation we propose adapted algorithm. We compare our adaptive system results to others given by urban traffic system based on fixe pattern lights. The system is designed to make equilibrium between the length queue and the states of lights to search optimal strategy guarantying the fluidity of traffic and minimizing the total delay. The real-time urban traffic control model CRONOS has been applied on a simple intersection presenting two roads. We have choosing a simple intersection to validate our method which will apply after for a complicate intersection. We use traffic evaluation criteria to testing the accuracy the model. The results show benefits of the proposed model on the total delay compared to that of the fixe pattern lights system. All traffic situations, peak or low are concerned by these results.