Traffic-responsive signalling control through timed Petri nets

Authors:	Giglio Davide, University of Genova, Italy Di Febbraro Angela, Polytechnic of Torino, Italy
Topic:	7.4 Transportation Systems
Session:	Traffic Flow Modelling and Control
Keywords:	Traffic control, Timed Petri-nets, Discrete-event systems, Optimization problem, Mathematical programming

Abstract

This paper addresses the optimization of the green light durations in a signalized urban area, by means of a traffic-responsive control strategy. The adopted model, mainly consisting of signalized intersections and roads, is microscopically represented by means of deterministic-timed Petri nets (DTPNs), which allow a compact representation of the traffic behaviour. The proposed optimization algorithm includes the solution to a mathematical programming problem constrained by the DTPN state equations.