The urban traffic jams are daily problem in large cities. Urban Traffic Control (UTC) Systems aim to solve this problem. Because of spatial distribution of urban traffic, multiagent systems are suitable framework for implementation of UTC. In this paper, we present a new abstract model of traffic flow that and explain how a reactive control agent can be built based on it.

This paper examines a new evaluation of urban road traffic safety based on a matter element analysis, avoiding the difficulties found in other traffic safety evaluations. The issue of urban road traffic safety has been investigated through the matter element analysis theory. The chief aim of the present work is to investigate the features of urban road traffic safety. Emphasis was placed on the...

Introduction: The aim of this study was to spatial analysis of PM10 concentrations in the ambient air of Yazd in two seasons, and the zoning by using Kriging interpolation method. Finally, different factors affecting the concentrations of PM10 are marked and standards have been investigated Material and methods: The measurement of PM10 particulates was performed by the monitoring device HAZ-...

Today, the cement industry is one of the major air polluting industries in the world. Hence, in this study, owing to the importance and role of contaminants from the plant, an appraisal of the emission contributions in addition to other factors have been discussed. There are several reasons behind the importance of modeling air pollutants. First, the assessment of standards for air pollution, a...

Promotion of urbanization is one of characteristics of current societies that in their evolutionary trend results in establishment of megalopolis and brings the complex urban management in these huge population centers every day, together with new difficulties. Urban environmental problems, providing public and security services, green space and city fa�ade, urban economic problems, informing, ...

A number studies reported in literature have highlighted the role of road traffic in pushing up the levels of ambient particulate matter as well as the contribution of particulate matter in increasing the incidence of certain respiratory health endpoints. This study investigates the evidence of the impacts of traffic by looking at the situation at the city-level through the assessment of the re...

Ambient particles whose aerodynamic diameters were not greater than 2.5 μm (fine fraction of Particulate Matter; PM2.5) and 1 μm (PM1; sub-fraction of PM2.5) were sampled at three sites in Upper Silesia (Poland): urban background site, rural background site, and urban traffic site. In total, 240 samples were collected between 2 August 2009 and 27 December 2010. The reflectance of the collected ...

In recent years, many emerging problems with urban transportation system, including traffic congestion, have been direct results of the steadily increasing number of commuters in urban areas. To address these problems, many research projects have studied the behaviors of urban traffic systems, and researchers have proposed new and innovative traffic control schemes. These studies require accura...

Background and Aim: High concentrations of particulate matter-25 (PM2.5) have been the cause of the unhealthiest days in Tehran, Iran in recent years. This study was conducted with the aim of the spatio-temporal analysis of traffic volume and its relationship with PM2.5 pollutant concentrations in Tehran metropolis, Tehran during 2015-2018, using the Geographic Information System (GIS). Materi...

The objective of this work was to study PM(10) and PM(2.5) concentration data available from monitoring stations in two large urban agglomerations in Greece and to estimate the emissions reduction required for compliance with the EU Air Quality Standards (AQS) for particulate matter. The cities studied are namely the Athens and Thessaloniki Metropolitan Areas (AMA and TMA, respectively). PM(10)...