Abstract
Vehicular Adhoc NETworks (VANETs) is a new and emerging technology for wireless communications that has attracted considerable attention in the last years from the academic, scientific, industrial and governmental communities, due to the improvements and the new features that it brings to the Intelligent Transportation Systems (ITSs). In this paper, we present an algorithm that uses VANET technology to determine the total number of vehicles that are stopped at a traffic light at an intersection. To facilitate an efficient counting, we divide the road into fixed-size road regions and through a leader election mechanism, we designate one vehicle in each region as the “Region Leader” that is in charge of computing and propagating the total number of nodes in its region. Additionally, the region leader will act as a router to retransmit counting information from other region leaders that are further away, so it can eventually reach the central processing point where it is processed. We have carried out extensive experiments in various scenarios to validate and analyze the behavior and precision of our new proposed algorithm. Also, we compare our algorithm with another strategy proposed by a research team led by Alok Rajan. Our simulations were done using Veins (Vehicle in Network Simulation), an open-source simulation framework that ties together two simulators: OMNeT++ for the network simulation and SUMO for the microscopic road traffic simulation. Both simulators run in parallel and communicate with each other through a TCP connection using a protocol called TraCI (Traffic Control Interface). Our simulation results show that the algorithm performs an effective counting of vehicles, with a reduced response time, and a small total number of control messages sent by the vehicles to accomplish the counting task, under different conditions of vehicular traffic loads.
Highlights
Using the road transportation is almost inevitable in modernday life
The results of our experiments seem to indicate that the algorithm performs an effective vehicle counting, with a reduced response time, using a small number of control messages sent by the nodes during the counting process, under different scenarios of vehicular traffic density
WORK In this paper, we presented a distributed algorithm to determine in real-time the number of vehicles stopped at a traffic light at an intersection using WAVE technology
Summary
Using the road transportation is almost inevitable in modernday life. in recent years, we have seen the apparition of new problems due to the growth of vehicular traffic that include: traffic accidents, traffic congestion, air pollution, noise contamination, and others [1]. Gamess: Real-Time Counting of Vehicles Stopped at a Traffic Light Using Vehicular Network Technology groups: (1) safety, (2) traffic optimization, and (3) comfort and entertainment To implement these applications, new basic algorithms are needed, for example, the counting of vehicles in different scenarios. Most of the techniques or methods existing in the ITSs for vehicle number estimation requires a dedicated expensive infrastructure, such as pressure pads, inductive loops under the road surface with magnetic field detectors, digital/video/ thermal cameras, pneumatic road tubes, radar counters, infrared beams, and piezoelectric sensors [8] These techniques require the detection devices to be pre-installed [5] and suffer from low reliability and limited coverage, high likeliness to be damaged, as well as high deployment and maintenance costs [8].
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