Road dust and vehicle exhaust are the main sources of air pollution in cities, especially in recent years with the quantity of vehicles and transportation construction continuously soaring; the hazy weather has been a dominant urban pollution form which is widely concerned by the Chinese society. By establishing a relationship model between traffic and land use, then applying analytic hierarchy...

This paper presents a microscopic traffic simulation-based method for urban traffic state estimation using Assisted Global Positioning System (A-GPS) mobile phones. In this approach, real-time location data are collected by A-GPS mobile phones to track vehicles traveling on urban roads. In addition, tracking data obtained from individual mobile probes are aggregated to provide estimations of av...

Knowledge of fundamental traffic flow characteristics and vehicle dynamic behavior are essential for operation of transportation system. The fundamental characteristics of speed and flow have been studied. Time-headway distribution of urban heterogeneous traffic was also studied. An appropriate methodology was adopted to collect and extract headway data. The methodology for choice of best fitti...

This paper is to explore new ways to better understand urban system emphasizing on detection and analysis of urban area hotspots through cell phone traffic data. Firstly, according to the characteristics of GSM network, Voronoi cellular network is introduced to determine the service area of the base station. Then two visualization methods are discussed through analyzing the distribution of cell...

In Essex, EssexITS (a joint partnership of Essex County Council, Atkins and Siemens), has taken a hands-on approach to assist the County Council in carrying out its responsibility under TMA2004. EssexITS has developed a number of Integrated Urban Traffic Management and Control (UTMC) strategies to manage Essex’s road network, tackle congestion and proactively prevent or reduce the effect of con...

Urban road traffic management is an example of a socially relevant problem that can be modelled as a large-scale, open, distributed system, composed of many autonomous interacting agents, which need to be controlled in a decentralized manner. Most models for urban road traffic management rely on control elements that act on traffic flows. Dresner and Stone have put forward the idea of an advanc...

Intelligent Transportation System (ITS) is one of the most important urban systems that its functionality affects other urban systems directly and indirectly. In developing societies, increasing the transportation system efficiency is an important concern, because variety of problems such as heavy traffic condition, rise of the accident rate and the reduced performance happen with the rise of p...

Draft traffic impact assessment (TIA) guidelines for various landuses in general, and for high traffic generating buildings in particular, were published in Iran in the middle of 2016. In formulating that report the Traffic Committee of the Iranian Building Engineering Order reviewed international experience, including that of Australia. Traffic impact assessment started in Australia in the 196...

Planning and optimizing urban traffic is a difficult problem, with considerable economic and social impacts. The development of suitable software tools to aid municipal governments to control and to improve the traffic flow is urgent due to the increasing number of vehicles in urban areas. However, the development of this kind of software represents a great challenge since the problems to be de...

Team Oshkosh, composed of Oshkosh Corporation, Teledyne Scientific and Imaging Company, VisLab of the University of Parma, Ibeo Automotive Sensor GmbH, and Auburn University, participated in the DARPA Urban Challenge and was one of the 11 teams selected to compete in the final event. Through development, testing, and participation in the official events, we experimented and demonstrated autonom...