Traffic noise pollution is a growing problem that highly affects the health of people. To cope with this problem one has to regulate traffic or construct noise barriers. In order to implement effective measures against traffic noise the information about its distribution – noise maps is imperative. This paper presents our work in creating a noise calculator software package implementation that ...

Abstract Environmental noise prevention starts from strategic maps of main transport infrastructures and agglomerations. Graduated colors are representative the average levels produced in space by each individual source, or overall sum. Among their purposes, communication results to population has been most neglected. The present paper proposes predominance for first time environmental acoustic...

although technical development has positive consequences for public welfare, its influences on environment especially by noise is considerable. three-dimensional maps of noise pollution made it possible to control and prevent its spread. in this research, primarily because of the lack of a standard model of noise in iran, we chose the standard noise mapping method 1 (smm1) which has been spread...

Aims. We develop and validate tools for estimating residual noise covariance in Planck frequency maps, we also quantify signal error effects and compare different techniques to produce low-resolution maps. Methods. We derived analytical estimates of covariance of the residual noise contained in low-resolution maps produced using a number of mapmaking approaches. We tested these analytical predi...

background : noise pollution and workers' noise exposure are common in industrial factories in iran. in order to reduce this noise pollution, evaluation and investigation of noise emission are both necessary. in this study, different noise mapping methodsare used for determining the distribution of noise.   materials and methods : in the present study, for preparing a noise map in a hall o...