A GIS Analysis of Noise Islands in Calabar Metropolis, Nigeria

Type Journal Article - Journal of Environment and Earth Science
Title A GIS Analysis of Noise Islands in Calabar Metropolis, Nigeria
Author(s)
Volume 3
Issue 12
Publication (Day/Month/Year) 2013
Page numbers 1-9
Abstract
This study examined noise islands in Calabar Metropolis, using Geographic Information Systems (GIS)
infrastructure. Physical measurement of noise levels was made using Barn and Korn (BK) Precision 732 Digital
Sound Level Meters. The locations were geo-referenced using a Garmin GPSMAP 60CSx Global Positioning
System. Data were manipulated using ESRI ArcGis Software version 9.5, which generated composite noise
maps. The point data in the geospatial database were subjected to interpolation, deploying Inverse Distance
Weighing (IDW) algorithm for the different temporal periods of morning, afternoon and evening. The results
revealed that noise level in the industrial, commercial as well as the transportation land use elements have been
found to increase from the morning period, hits the peak in the afternoon and begins to wane in the evening
period. Unlike the residential zones, which showed low, as well as moderately high noise level on certain days of
the week due to some incompatible activities located there. It was therefore recommended that those activities
that generate high noise in the industrial and commercial zones should be discouraged from springing up in the
residential landuses in order to maintain their tranquil status. Besides, the source, path, and receiver techniques
of noise attenuation have also been recommended as a general antidote to noise menace in the metropolis.

Related studies

»