Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia

The use of environmental noise barrier has increased as concerns of side effects of noise pollution in the environment grow. However, a lot of complaints from the residents occur after the installation of the noise barrier regarding its effectiveness. Thus, this study is carried out to determine the...

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Main Author:	Halim, Herni
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Noise barriers - Evaluation
Online Access:	http://psasir.upm.edu.my/id/eprint/66339/1/FPAS%202016%202IR.pdf
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id	my-upm-ir.66339
record_format	uketd_dc
spelling	my-upm-ir.663392019-01-23T04:20:41Z Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia 2016-02 Halim, Herni The use of environmental noise barrier has increased as concerns of side effects of noise pollution in the environment grow. However, a lot of complaints from the residents occur after the installation of the noise barrier regarding its effectiveness. Thus, this study is carried out to determine the effectiveness of existing noise barriers such as vegetation, concrete hollow block, and panel concrete. This study is designed to evaluate the influence of source of noise (traffic composition) as well as meteorological condition towards level of noise at study sites with and without the presence of noise barrier. The results of the study reveals that LAeq in all study sites throughout all measurement periods recorded 61.9 dB(A) to 74.8 dB(A) during daytime (morning, afternoon, and evening) and 57.6 dB(A) to 73.2 dB(A) during night time. These results exceed the noise limit in Malaysia guidelines (daytime = 60 dB(A) and night time = 50 dB(A)). Results of PCA show the percentages of the total variance up to 95% by variables of traffic composition such as car, motorcycles, and light lorries. Apart from that, panel concrete noise barrier meet the minimum value of effective noise barrier insertion loss. The concrete hollow block partially meet the minimum value of effective noise barrier with computed insertion loss, while vegetation does not provide enough insertion loss of effective noise barrier. Therefore, the finding indicates that panel concrete provides consistent insertion loss followed by concrete hollow block and vegetation. The MLR model based on the traffic characteristics group exhibited optimal performance in term of coefficient of determination for with and without noise barrier location with values of 0.858 and 0.839, respectively. Noise barriers - Evaluation Traffic noise - Klang Valley, Malaysia 2016-02 Thesis http://psasir.upm.edu.my/id/eprint/66339/ http://psasir.upm.edu.my/id/eprint/66339/1/FPAS%202016%202IR.pdf text en public doctoral Universiti Putra Malaysia Noise barriers - Evaluation Traffic noise - Klang Valley, Malaysia
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Noise barriers - Evaluation Noise barriers - Evaluation
spellingShingle	Noise barriers - Evaluation Noise barriers - Evaluation Halim, Herni Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia
description	The use of environmental noise barrier has increased as concerns of side effects of noise pollution in the environment grow. However, a lot of complaints from the residents occur after the installation of the noise barrier regarding its effectiveness. Thus, this study is carried out to determine the effectiveness of existing noise barriers such as vegetation, concrete hollow block, and panel concrete. This study is designed to evaluate the influence of source of noise (traffic composition) as well as meteorological condition towards level of noise at study sites with and without the presence of noise barrier. The results of the study reveals that LAeq in all study sites throughout all measurement periods recorded 61.9 dB(A) to 74.8 dB(A) during daytime (morning, afternoon, and evening) and 57.6 dB(A) to 73.2 dB(A) during night time. These results exceed the noise limit in Malaysia guidelines (daytime = 60 dB(A) and night time = 50 dB(A)). Results of PCA show the percentages of the total variance up to 95% by variables of traffic composition such as car, motorcycles, and light lorries. Apart from that, panel concrete noise barrier meet the minimum value of effective noise barrier insertion loss. The concrete hollow block partially meet the minimum value of effective noise barrier with computed insertion loss, while vegetation does not provide enough insertion loss of effective noise barrier. Therefore, the finding indicates that panel concrete provides consistent insertion loss followed by concrete hollow block and vegetation. The MLR model based on the traffic characteristics group exhibited optimal performance in term of coefficient of determination for with and without noise barrier location with values of 0.858 and 0.839, respectively.
format	Thesis
qualification_level	Doctorate
author	Halim, Herni
author_facet	Halim, Herni
author_sort	Halim, Herni
title	Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia
title_short	Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia
title_full	Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia
title_fullStr	Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia
title_full_unstemmed	Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia
title_sort	effectiveness of noise barriers at residential areas in klang valley, malaysia
granting_institution	Universiti Putra Malaysia
publishDate	2016
url	http://psasir.upm.edu.my/id/eprint/66339/1/FPAS%202016%202IR.pdf
_version_	1747812376937234432

Effectiveness of noise barriers at residential areas in Klang Valley, Malaysia

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