1 research outputs found
A GIS – based method for assessment and mapping of noise pollution in Ota metropolis, Nigeria
A detailed method used for assessing and mapping noise pollution levels in Ota metropolis, Nigeria using ArcGIS
10.5 Software is presented in this paper. Noise readings were measured at a time interval of 30 min for each site
considered using a precision grade soundlevel meter. The noise map developed was based on the computed values of
average equivalent noise (LAeq) for the selected locations. Results of this study show that the A weighted sound level
(LAeq), the background noise level (L10) and the peak noise level (L90) vary with location and period of the day due to
traffic characteristics especially traffic volume, vehicle horns, vehicle mounted speakers, and unmuffled vehicles at
road Junctions, major roads, motor parks and commercial centres. Based on the U.S. Department of Housing and
Urban Development (HUD) recommendations and standards, only one (1) out of the 41 locations considered is under
normally acceptable situation, while 12 locations are under normally unacceptable and the noise levels of the rest
locations are clearly unacceptable. Results of this study are useful as reference and guideline for future planning and
regulations on noise limit to be implemented for urban areas like Ota Metropolis