Modeling and controlling an isolated urban intersection based on cooperative vehicles

Abstract

In this paper, we propose a new approach for controlling the traffic at isolated intersections. We assume that all vehicles are equipped with on-board units (ITS station) that make them able to wirelessly negotiate the "right of way" according to the measurements done by the positioning system during their travel. A vehicle is allowed to cross the intersection if the green color is displayed to the driver in an on-board screen. The control aims to smooth the traffic through the sequence of vehicles authorized to traverse the intersection. The main challenge raised with the assumption is that the sequence must be dynamically formed by a real time application. The dynamic behavior of the traffic is considered discrete, in order to determine the switching rule according to the instantly observed events. We propose a model based on Timed Petri Nets with Multipliers (TPNM) which allows us to propose the control policy through the structural analysis. The resulting switching rules are very simplistic and efficient for isolated intersections. Indeed, microscopic simulations show that they perform as well as the optimal sequence based on the detection of vehicles at the entrance of the intersection. Moreover, the proposed approach has been tested through a real intersection.

An Adaptive Traffic Signal Control in a Connected Vehicle Environment: A Systematic Review

“…Ahmane et al [21] presented a new traffic control method based on Timed Petri Nets with Multipliers (TPNM) for an isolated intersection. In this method, the control aims to smooth the traffic through the sequence of vehicles authorized to cross the intersection.…”

“…Several studies have been implemented on the applications of CVs technology in adaptive traffic signal control. Some papers [17,19] concentrated on phase optimization-based methods to optimize the signal control and some [20][21][22][23] employed queue-based methods to model and achieve the signal control system optimization. Adaptive traffic signal control methods are aimed at either minimizing the average delay per vehicle or decreasing the queue length of vehicles at intersections.…”

Delay-Aware Design, Analysis and Verification of Intelligent Intersection Management

“…In [10], the problem is abstracted as traffic flows with conflict points and formulated as a linear programing problem. Distributed intersection management requires the vehicles to negotiate the right-of-way among themselves before entering the intersection [11], [12], [13]. In [13], the system can be proven to be deadlock-free using Petri Net models.…”

“…In [13], the system can be proven to be deadlock-free using Petri Net models. In [11], Timed Petri Nets models are again used to decide the sequence of vehicles entering intersection for traffic smoothness. In all these previous works, vehicular communications are assumed as instantaneous (or with a short constant delay) and always reliable.…”

Sim-Tree

“…A one-dimensional spatial index is sufficient for traditional vehicles' car following models, lane changing models and gap acceptance models [4]. However, it has limited capability in more complex conditions, such as vehicles' cooperative driving [9], pedestrians' behaviors [10] and the interactions between objects on different roads. This paper focuses on two-dimensional spatial indexes to support various behavior models of different types of objects on different types of geometries (e.g.…”