This study was carried out to analyze the variations of Benzene, Toluene, and para- Xylene (BTp-X) present in the urban air of Delhi. These pollutants can enter into the human body through various pathways like inhalation, oral and dermal exposure posing adverse effects on human health. Keeping in view of the above facts, six different locations of Delhi were selected for the study during summe...

as wireless networks with high data rate get widely deployed, improving the performance of tcp over these networks plays vital role. wireless link losses have dramatic adverse impact on tcp performance due to the difficulty in distinguishing the congestion losses from wireless link losses. we first, studied the various existing bandwidth estimation algorithms over the wireless networks. in this...

Broadband highways are being built in major cities around the world to combat traffic congestion. At same time, existing buildings demolished or powerful overpasses raised above them. However, it often turns out that newly created quickly exhaust their capacity, and jams formed on them again. This situation indicates increasing capacity of highway does not solve problem jams, but aggravates it,...

The article discusses the changes in volume of emissions from vehicles along several streets (new and old) part Ochakovo-Matveevskoye municipal district Moscow. large-scale assessment method included 3 stages: field observations intensity structure traffic flow on selected streets, calculation emission volumes air pollution density dispersion areas. In determines shifts factors spatial issues s...

Congestion is one of the main issues in data envelopment analyses which have particular importance. Recently researches about congestion, whether in economic articles or in Operations Research articles in had grown increasingly. Congestion is a wasteful stage of the production process where outputs are reduced due to excessive amount of inputs. In economics, congestion is very important because...

In the Quito historical center, due to its narrow streets, vehicular congestion is very frequent. Intelligent vehicles can be used, which have fully automatic driving, but need interact with each other. The manner in smart through vehicle networks, require installation of an infrastructure called RSU (Road Side Unit) that uses IEEE 802.11p standard and allows sending information more distant pl...

One of the most important issues in today&rsquos urban world is increasing use of cars and its noise pollution, which is now one of the most important affecting pollutants on health and quality of lives of residents in urban areas. Noise pollution effects on various aspects of human and the community health as well as the high cost of treatment, thus more studies in this field is needed. Hence ...

1-      introduction the increasing growth of urbanization in recent decade and occurring most of the economic and social activities of human being in urban environments cause that the city is considered as a place a citizen spends much time and it is one of the effective and important places in which the majority of memories, experiences, emotions are formed. thus, cities play important role i...

Traffic management systems have historically been limited to addressing the control of street signal lights. Algorithmic solutions to this problem have proved to be very restrictive, while expert system solutions have only shown valid results with small signal networks. None of these approaches has addressed the need for management of the overall transportation system of surface streets, inters...

Congestion indicates an economic state where inputs are overly invested. Evidence of congestion occurs whenever reducing some inputs can increase outputs. In this paper, we present a new model to identify and evaluate congestion in Data Envelopment Analysis (DEA). We use output efficient DMUs to construct our proposed model to evaluate congestion. We also proposed a linear inequality and equali...