Guest session — Intelligent transportation systems invited paper: RED approach for traffic lights management

The application of communication technologies in the transport field is the center of interest of many researchers, car manufacturers and standardization bodies since several years. Road's traffic management is an important topic which is more and more covered by various actors in the Intelligent Transportation Systems field via many proposed solutions. Thus, in order to achieve the dream of smart city, a special attention was given to the treatment of cities' traffic management problem; especially in junctions which constitute bottlenecks for traffic flow leading to a poor quality of urban mobility. In this context, so-called ITL (Intelligent Traffic Lights) systems, based generally on sensors, are proposed to address this situation. Therefore, with increasingly high-speed networks, it is increasingly important to have mechanisms that keep throughput high. Traffic management is a well known problematic in internet. Thus, several researchers have studied methods for providing congestion avoidance at the gateway called also router. Inspired by advanced technologies in Internet traffic management, we propose a system based on the RED (Random Early Detection) mechanism widely used by routers to avoid congestion. Our contribution consists of the adaptation of this mechanism to the ITS context by applying it for traffic lights management. Our system will certainly contribute to the decrease of waiting times, fuel consumption and pollution. The paper will present the complete adaptation of the RED algorithm to the context of the intelligent transport systems. We will also present a Vehicular to Infrastructure communication in order to collect data for traffic monitoring.