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Road congestion is a complex, significant and continuing problem. This project is concerned with urban road systems and traffic light control. The objective is to create a novel traffic controller which uses available forward road capacity (AFRC) detection and locality awareness in conjunction with existing backpressure methods as a means to reduce the duration of congestion. The controller is an...
When dealing with road traffic modeling, one problem is given by the difficulty of modeling the dynamics of a vehicle/group of vehicles from the time it enters a road section until it reaches the end. Besides, road traffic, seen as a complex dynamic process, is difficult to be characterized by fixed values. Therefore, this paper proposes a solution using fuzzy logic control, which by analyzing the...
With the goal of accomplishing vehicular traffic simulations close to reality, modelling intersection control is a very important issue which affects the traffic flow and hence simulation results considerably. This paper presents an exhaustive intersection control applicable for continuous traffic simulators. Our work contains many types of road crossings and junctions occurring in real road networks,...
Vehicular Ad Hoc Network (VANET) is an emerging field of wireless networks that facilitates different applications such traffic information for participant vehicles and related authorities. However, deploying of such applications is mainly depending on the market penetration rate of this technology. In this paper, we propose a new 3-steps approach for estimation of traffic volume in a road segment...
Traffic congestion and queues made by cars, are now part of our everyday life. Congestion levels have increased significantly in recent years, and this trend continues. Making correct decisions in congestion management is a difficult thing, because the decision factors need to analyze and absorb a large amount of information, which often are not relevant. In this paper, we propose a regression model...
With our interest to reduce traffic congestion, simulations are necessary to investigate how to achieve this goal. Because of the difficulty of real-time experiments, traffic simulators are a good and widely used tool for analyzing specific situations of the traffic flow virtually. This paper introduces TraffSim, a new platform-independent framework, which is capable of simulating microscopic vehicular...
One of the key functions related to traffic optimization and control in Insigma is computing routes for emergency services. In Poland, due to its special status, a privileged car behaves in a substantially different way than a plain car. As a result, "privileged" routes should also considerably differ. In the paper, we propose a solution that combines road data and a behavior model, able...
During the last period, road traffic has become one of the most studied topics. The main problem in urban transport network is congestion. Congestion is due to a several factors such as infrastructure, the ratio of the large number of vehicles and road network capacity as well as traffic signals mode. For this reason, several models have been developed in order to estimate the throughput value for...
This paper propose a method for automatic vehicle detection in QuickBird images of small highways, with relatively low traffic density, frequent occurrence of tree shadows, and changes in illumination conditions. The vehicle detection is based on an elliptical Laplacian of Gaussian scale space methodology, where the vehicle locations are detected at local extrema in the image response to convolution...
In this paper, we study an NP-hard lane reservation problem on transportation network. By selecting lanes to be reserved on the existing transportation network under some special situations, the transportation tasks can be accomplished on the reserved lanes with satisfying the condition of time or safety. Lane reservation strategy is a flexible and economic method for traffic management. However,...
According to the travel time estimation problems in the urban road traffic flow, two travel time estimation models are presented in this paper. The velocity model is based on the average velocity of vehicles at the adjacent monitoring points, and the retention time model is based on the free driving time and the residence time used in road between two adjacent monitoring points. The models are validated...
This paper reviews the basic method in dealing with the urban traffic of China's metropolises. It analyses of fundamental problem of urban transport development in-depth. Then we give some advantages depending on building underground road network to solve these problems in center district of plain metropolises. After analyzing, we proposed that, to achieve this goal will require study and solve urban...
Autonomous vehicles are very hot research area which advance artificial intelligent, pattern recognition, computer vision, sensor fusion and control theory. In the paper we demonstrate a kind of micro-autonomous vehicle, describing hardware and software architectures, perception system and control method-cloud control. Our goal is study interaction behaviors between autonomous vehicles and how to...
The computer simulation of road traffic is an important tool for analysis and control of traffic networks. Because a detailed simulation of a large traffic network can be computationally intensive, many simulators have been adapted for distributed computing environment, where combined power of multiple connected computers is utilized. An important issue of the distributed traffic simulation is the...
The intersection is the critical node in city, and has important influence on traffic flow. Whether the intersection is controlled reasonably is the key to the safety and efficiency of the intersection. Because of the current urban intersection control type existing unreasonably, In view of this situation, typical intersection is selected as main object of study. LOS is chosen as Performance Index,...
With the growing problem of urban traffic, public transportation is increasingly emphasized by people. Bus priority is an important means of improving public transport. It reflects the principle of "people-oriented" in traffic and improves the public service efficiency. As the latest research of the fields of computers and distributed artificial intelligence, Agent provides a new way of...
To solve the problem that traffic safety risks is difficult to identify and compare quantitatively for the new road or accident black spots, the virtual simulation tests (VST) system is put forward combined the numerical simulation. The driver module on vehicle speed control, the vehicle dynamic network solution module, traffic environment 3D model, traffic safety management and control module, human-vehicle-road...
Traffic conflict studies have been widely used because the data of traffic conflicts can be collected and evaluated in a short period of time. Widespread studies have shown that there is close relationship between traffic accidents and traffic conflicts. Since the data of traffic accidents are usually inadequate and the application of traffic accident analysis often requires long periods of data accumulation,...
Road congestion is a common problem worldwide. Intelligent Transport Systems (ITS) seek to alleviate this problem using technology. But most ITS techniques, currently used in developed countries, are inapplicable in developing regions due to high cost and assumptions of orderly traffic. Efforts in developing regions have been few. In this paper, we seek to develop a low-cost ITS technique to detect...
The highway is the inevitable outcome of the social and economic development. In recent years, with the rapid development of our economy, the growth of highway is becoming faster and faster. But the followed is a series of highway management issues. In view of the issues of poor vehicle control, the traditional parking charge as well as traffic jam brought by this, road toll in confusion, low level...
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