SBLS: Speed Based Lane Changing System in VANETs (original) (raw)
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LCDs: Lane-Changing Aid System Based on Speed of Vehicles
IEIE Transactions on Smart Processing and Computing, 2016
Lane change is an important issue in microscopic traffic flow simulations and active safety. Overtaking and changing lanes are dangerous driving maneuvers. This approach presents a lane-changing system based on speed and a minimum gap between vehicles in a vehicular ad hoc network (VANET). This paper proposes a solution to ensure the safety of drivers while changing lanes on highways. Efficient routing protocols could play a crucial role in VANET applications, safeguarding both drivers and passengers, and thus, maintaining a safe on-road environment. This paper focuses on the development of an intelligent transportation system that provides timely, reliable information to drivers and the concerned authorities. A test bed is created for the techniques used in the proposed system, where analysis takes place in an on-board embedded system designed for vehicle navigation. The designed system was tested on a four-lane road in Neemrana, India. Successful simulations were conducted with real-time network parameters to maximize quality of service and performance using Simulation of Urban Mobility and Network Simulator 2 (NS-2). The system implementation, together with the findings, is presented in this paper. Illustrating the approach are results from simulation using NS-2.
IEEE Transactions on Intelligent Transportation Systems, 2022
Variable Speed Limit (VSL) control has been one of the most popular techniques with the potential of smoothing traffic flow, maximizing throughput at bottlenecks, and improving mobility and safety. Despite the substantial research efforts in the application of VSL control, few studies have looked into the effect of the VSL sign distance from the point of an accident or a bottleneck. In this paper, we show that this distance has a significant impact on the effectiveness and performance of VSL control. We propose a rule-based VSL strategy that matches the outflow of the upstream VSL zone with the bottleneck capacity based on a multi-section Cell Transmission Model (CTM). Then, we consider the distance of the upstream VSL zone as a control variable and perform a comprehensive analysis of its impact on the performance of the closed-loop traffic control system based on the multi-section CTM. We develop a lower bound that this distance needs to satisfy in order to guarantee homogeneous traffic density across sections and reduce bottleneck congestion. The bound is verified analytically and demonstrated using microscopic simulation of traffic on I-710 in Southern California. The simulations are used to quantify the benefits on mobility, safety and emissions obtained by selecting the upstream VSL zone distance to satisfy the analytical lower bound. The developed lower bound is a design tool which can be used to tune and improve the performance of VSL controllers. Index Terms-integrated traffic control, variable speed limit, lane change control, multi-section cell transmission model, VSL zone distance.
Intelligent Advisory Speed Limit Dedication in highway using VANET
Variable speed limits (VSLs) as a mean for enhancing road traffic safety are studied for decades to modify the speed limit based on the prevailing road circumstances. In this study the pros and cons of VSL systems and their effects on traffic controlling efficiency are summarized. Despite the potential effectiveness of utilizing VSLs, we have witnessed that the effectiveness of this system is impacted by factors such as VSL control strategy used and the level of driver compliance. Hence, the proposed approach called Intelligent Advisory Speed Limit Dedication (IASLD) as the novel VSL control strategy which considers the driver compliance aims to improve the traffic flow and occupancy of vehicles in addition to amelioration of vehicle's travel times. The IASLD provides the advisory speed limit for each vehicle exclusively based on the vehicle's characteristics including the vehicle type, size, and safety capabilities as well as traffic and weather conditions. The proposed approach takes advantage of vehicular ad hoc network (VANET) to accelerate its performance, in the way that simulation results demonstrate the reduction of incident detection time up to 31.2% in comparison with traditional VSL strategy. The simulation results similarly indicate the improvement of traffic flow efficiency, occupancy, and travel time in different conditions.
Assisted Highway Lane Changing with RASCL
2010
Abstract Lane changing on highways is stressful. In this paper, we present RASCL, the Robotic Assistance System for Changing Lanes. RASCL combines state-of-the-art sensing and localization techniques with an accurate map describing road structure to detect and track other cars, determine whether or not a lane change to either side is safe, and communicate these safety statuses to the user using a variety of audio and visual interfaces.
Operational Evaluation of Dynamic Lane Merging In Work Zones with Variable Speed Limits
Procedia - Social and Behavioral Sciences, 2011
Intelligent Transportation System (ITS) technology has been developed to improve the safety and mobility of traffic in and around work zones. In several states in the US, use of Dynamic Lane Merge (DLM) system has been initiated to enhance traffic safety and smooth traffic operations in work zone areas. The DLM usually takes two forms; dynamic early merge and dynamic late merge. The use of variable speed limit (VSL) systems at work zones is also one of those measures. It is anticipated that the VSL systems improve safety by helping the driver in determining maximum speed that he or she should travel. Besides adding improvement to safety, they are also expected to improve mobility at the work zones. The main goal of this paper is to report on an evaluation of operational effectiveness of the DLMS systems i.e. the Dynamic Early Lane Merge and Dynamic Late Lane Merge, in presence of a VSL system. More specifically, the VISSIM model was utilized to simulate a 2-to-1
Dynamic road lane management study
Transportation Research Part E: Logistics and Transportation Review, 2016
Our SMART CITY contribution is transportation-oriented in that it proposes a dynamic road lane management system in order to share appropriately the space devoted to traffic. After a historical view of a series of solutions from physical to ICT supported, we present our proposal extensively supported by up-to-date ICT. Following a main presentation, we describe the system architecture and its working conditions. Then, we present the proposed simulator designed to study operating and driver's conditions with respect to the new traffic signs proposed. We also describe a Mock-up technology validation and give preliminary information on in-thefield deployment. This paper is an extended version of the paper [29] awarded at the IEEE 3rd International Conference on Advanced Logistics and Transport (ICALT'2014) conference.
Adapted Speed System in a Road Bend Situation in VANET Environment
Computers, Materials & Continua
Today, road safety remains a serious concern for governments around the world. In fact, approximately 1.35 million people die and 2-50 million are injured on public roads worldwide each year. Straight bends in road traffic are the main cause of many road accidents, and excessive and inappropriate speed in this very critical area can cause drivers to lose their vehicle stability. For these reasons, new solutions must be considered to stop this disaster and save lives. Therefore, it is necessary to study this topic very carefully and use new technologies such as Vehicle Ad Hoc Networks (VANET), Internet of Things (IoT), Multi-Agent Systems (MAS) and Embedded Systems to create a new system to serve the purpose. Therefore, the efficient and intelligent operation of the VANET network can avoid such problems as it provides drivers with the necessary real-time traffic data. Thus, drivers are able to drive their vehicles under correct and realistic conditions. In this document, we propose a speed adaptation scheme for winding road situations. Our proposed scheme is based on MAS technology, the main goal of which is to provide drivers with the information they need to calculate the speed limit they must not exceed in order to maintain balance in dangerous areas, especially in curves. The proposed scheme provides flexibility, adaptability, and maintainability for traffic information, taking into account the state of infrastructure and metering conditions of the road, as well as the characteristics and behavior of vehicles.
INTELLIGENT LANE CHANGE METHOD FOR THE EMERGENCY SCENARIOS IN VANETS
VANET research papers report that, the findings of a study aimed at testing and evaluating the lane changing and merging abilities, especially under congested flow conditions are very essential now a days. Driver assistance systemshave become a major safety feature of modern passenger vehicles. The advanced driver assistance system (ADAS) isone of the active safety systems to improve the vehicle control performance and, thus, the safety of the driver and thepassengers. To use the ADAS for lane change control, rapid and correct detection of the driver's intention is essential.This study proposes a novel pre-processing algorithm for the ADAS to improve the accuracy in classifying the driver'sintention for lane change by augmenting basic measurements from conventional on-board sensors. The feasibility of the developed algorithm was tested through drivingsimulator experiments. As interest in simulating individual people and crowds has grown, simulating traffic andvehicles to accompany those human interactions has become crucial. Traffic simulation has become an importantdevelopment, helping city planners design roads that do not congest traffic or cause accidents.
Adaptive Advisory Speed Limit Dissemination Using Vehicular Communication
Variable speed limits (VSLs) have been investigated for decades to modify the speed limit based on the prevailing road circumstances. VSLs have increasingly reaped attention as a means to enhance road traffic safety. In this study pros and cons of the VSL systems, and factors that affect on VSL impacts is summarized. Despite the potential effectiveness of utilizing VSLs, the success of this system is impacted by several factors such as VSL strategy used and the level of driver compliance. It is found that the level of driver compliance could be depends on vehicles' safety capabilities. Therefore, we have introduced an Adaptive Advisory Speed Limit Dissemination (AASLD) architecture which uses a novel VSL control strategy to ameliorate driver compliance with speed limits. The current speed limit determine based upon the vehicle safety capabilities (e.g. vehicle type, size, weight, safety features) in addition to traffic and road conditions. The simulation results showed prominently that AASLD improves traffic flow efficiency and occupancy. In addition, the results demonstrate that utilization of Vehicular ad-hoc network technology in AASLD has evidently reduced the incident detection time up to 31.2 percent and appliance of safe speed limit in comparison with traditional VSL strategies.
Using Technology to Make Roads Safer: Adaptive Speed Limits for an Intelligent Transportation System
IEEE Vehicular Technology Magazine, 2017
||| 39 daptive speed limits (ASLs) is a promising technique that can be used to enhance the driving conditions on various road types. Consequently, a tremendous reduction in social costs can be achieved in areas such as accidents, pollution, congestion, noise, and greenhouse gas emissions. One of the essential factors in determining the efficiency of variable speed limit traffic systems is the dissemination of the adjusted speed limit. Several research studies indicate that in-vehicle driver notification significantly outperforms dynamic roadside speed limit signs. In this article, we present a framework outlining the system-level design and implementation for an ASL system with an interactive in-vehicle display and supporting communication units. We discuss three different realizations of the proposed approach, based on cellular networks, vehicular ad hoc networks (VANETs), and a