BACKGROUND The recognition of road traffic noise as one of the main sources of environmental pollution has led to develop models that enable to predict noise level from fundamental variables. Traffic noise prediction models are required as aids for designing roads and highways. In addition, sometimes are used in the assessment of existing or envisaged changes in traffic noise conditions. In thi...

conclusions according to the results of this study, with increasing load of traffic, there is an increasing need for proper consideration plans to control noise pollution and prevent its effects. results according to the research findings, the equivalent sound pressure levels in all stations were 76.28 ± 3.12 db (mean ± sd). according to sound measurements and the survey questionnaire, noise po...

Noise is one of the most important sources of pollution in the metropolitan areas. The recognition of road traffic noise as one of the main sources of environmental pollution has led to develop models that enable us to predict noise level from fundamental variables. Traffic noise prediction models are required as aids in the design of roads and sometimes in the assessment of existing, or envisa...

one of the important factors in urban construction designs is noise prevention. according toresults of this study (2011-2012), a suggested model is presented for traffic noise compatible to conditions in ahvaz. data was colleted to design a model from totally 112 measuring stations, 4 weekdays and 2 intervals as rush hours, yielding to a total number of 1344 traffic noise measurements (leq) and...

Long-range dependence (LRD) and self-similarity (SS) are two basic properties of network traffic time series. Fractional Brownian motion (fBm) and its increment process fractional Gaussian noise (fGn) are commonly used to model traffic with the Hurst index H that determines both the regularity of the sample paths and the long memory property of traffic. However, it appears too restrictive for t...

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...

background: to prevent the adverse health effects of noise pollution and to achieve the recommended standards, assessment of noise levels in the cities is essential. the aim of this study was to evaluate noise pollution levels (npls) in isfahan, iran and compare them with recommended standard values. materials and methods: a total number of 19 measurement points were selected from most congeste...