We consider the decentralized scheduling of a large number of urban traffic lights. We investigate factors determining system performance, in particular, the length of the traffic light cycle and the proportion of green time allocated to each junction. We study the effect of the length of the traffic cycle on the stability region a urban traffic network. We derive a simple square-root cycle len...

Urban traffic plans (UTPs) are tactical planning tools for managing urban areas and traffic noise abatement is one of their objectives, explicitly provided for under Italian law. To date, the various models and methods for estimating traffic noise have concerned its estimation in a point (or on a road segment). In this paper we propose a method that is able to evaluate the effects of UTPs on no...

Problem of traffic jams is common in large cities. Urban traffic control systems aim to solve this problem. The major difficulty in urban traffic is large number of variables for representing the state of traffc, such as traffic flow,speed, and density. Lack of precise relations between these variables is another problem. In this paper, we present a new model for traffic flow and introduce a tr...

objectives this study aimed to measure road traffic fatality rates and years of lost life, and also to depict a view of trends in road traffic deaths from 2004 to 2010 in yazd city, a province in central iran. materials and methods this retrospective case study analyzed road traffic deaths that were classified under the v01 - v99 codes of the icd-10 in yazd province from march 2004 to march 201...

This paper presents the method to estimate the traffic flow on the urban roadway by using car’s on-dashboard camera image. The system described, shows something new which utilizes only road traffic photo images to get the information about urban roadway traffic flow automatically. Keywords—traffic flow estimation; on-dashboard camera; computer vision.

In urban environments, particularly areas under reconstruction, metals, organic pollutants (OP), and microplastics (MP), are released in large amounts due to heavy traffic. Road runoff, a major transport route for pollutants, contributes significantly deteriorated water quality receiving waters. This study was conducted Gothenburg, Sweden, is unique because it simultaneously investigates the oc...

This paper attempts to give the solution for the urban scenario using DV cast protocol. Normally DV cast protocol is the best solution for highway traffic. But this paper proposed urban dv cast (UDV) protocol to deal with the urban traffic. This UDV protocol is extension of DV cast protocol. Our aim is to address the urban scenario where vehicles are equipped with sensors or wireless devices to...