2017 | vol. 65 | nr. 3 | art. 16

Control Isolated Intersections with Hybrid Petri Nets and Hybrid Automaton
(Full text in English)

Samir Derai, Rachida Hadiby Ghoul
Traffic congestion is a common problem in most of the big cities of the world, especially in developing countries where the gap between growing vehicle ownership and new road construction is greatest. Signalized intersections in urban areas in most of the big cities experience traffic congestion during peak periods. Intersections are inherently dangerous places, and the scene of many serious accidents. In this work we can be considered as a hybrid system which is characterized by two major components: continuous ones are flows of motorized vehicles and discrete ones are traffic lights. This work aims to optimize flows intensity of vehicles on the crossroads lanes, and avoid blocking and congestion situations. We first model an isolated crossroads by D-elementary Hybrid Petri net, which is translated into a hybrid automaton. The controller has to compute the new guards of automaton transitions (switching lights moments) which respect imposed specifications on the continuous marking (number of vehicles on crossroads lanes).
Keywords: Modelling, Control, D-elementary Hybrid Petri net, Hybrid automaton, Urban traffic.
To cite this article:  Samir Derai, Rachida Ghoul Hadiby, “Control Isolated Intersections with Hybrid Petri Nets and Hybrid Automaton ”, in Electrotehnica, Electronica, Automatica (EEA), 2017, vol. 65, no. 2, pp. 112-116, ISSN 1582-5175.