Study of aircraft noise at residential area in Taman Udara, Butterworth, Pulau Pinang
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Date
2019-04
Authors
Nur Ezzianty Binti Azhar
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Abstract
The growth of development, daily activities by the community and even land, air and water
transportation noises may contribute to the environmental noise problem to the community.
The source of the aircraft noise in the vicinity of Royal Malaysian Air Force, Butterworth has
been a major problem to the human health. Thus, this study focuses on the monitoring of
aircraft noise at the low-density residential area which is Taman Udara, Butterworth, Penang
as it was situated less than three kilometers from the military airport and thus any aircraft
related activities can be directly heard. The noise measurement was carried out for 12 hours
monitoring at the day time which is from 7.00 AM to 10.00 PM by using a precision Sound
Level Meter (SLM) Class One to obtain the equivalent sound level (LAeq), Lmax, Lmin, L10, L50
and L90. Each of the 13 different characteristics of the sampling points was taken in 1 hour (the
sound level meter recorded every one-second noise level) in the study area. The results of LAeq
value obtained from an environmental noise measurement at Taman Udara are being analyzed
descriptively and statistically. Different areas or sampling points would have different
characteristics, therefore, different noise exposure limit would be obtained. According to DOE
(2007), a low-density residential area is an area with less than 75 people per acre. The results
revealed that the overall average noise level (LAeq) obtained at the low-density residential areas
ranges from 51.9 to 77.9 dB (A) thus exceeded the exceeded the maximum permissible sound
level (LAeq) which is stated at 50 dB (A) during day time according to the Planning Guidelines
for Receiving Land Use for Planning and New Development for Environmental Noise Limits
and Control by the Department of Environment (DOE, 2007). These research are very useful
to be used as reference and guideline for future regulations on noise limit to be implemented
in Malaysia and thus a more sustainable city without noise pollution will be developing.
Keywords: Environmental background noise, aircraft noise, continuous equivalent sound level.