Performance and modelling of transverse rumble strips on noise and vibration stimuli

Transverse rumble strips (TRS) are commonly used in reducing vehicle speed and increasing drivers’ alertness on roadway through optical, sound and vibration effects. However, when inappropriately designed, TRS sound and vibration may become too excessive, thus compromise road users’ comfort and anno...

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Main Author:	Othman, Mohd. Hanifi
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/78221/1/MohdHanifiOthmanPFKA2016.pdf
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id	my-utm-ep.78221
record_format	uketd_dc
spelling	my-utm-ep.782212018-07-30T08:51:24Z Performance and modelling of transverse rumble strips on noise and vibration stimuli 2016-04 Othman, Mohd. Hanifi TA Engineering (General). Civil engineering (General) Transverse rumble strips (TRS) are commonly used in reducing vehicle speed and increasing drivers’ alertness on roadway through optical, sound and vibration effects. However, when inappropriately designed, TRS sound and vibration may become too excessive, thus compromise road users’ comfort and annoy local residents who live adjacent to the roadway. This study aims to contribute to the knowledge that will be used to improve the optimisation of TRS cross-section design for road user’s comfort and sustainable living of the neighbourhood. The objectives of this study were to: classify TRS profiles and assess the noise annoyance response towards TRS noise; measure and model TRS roadside noise level and analyse the possible tyre-TRS interaction mechanisms that involved in the TRS roadside noise generation; evaluate and estimate vehicle in-cabin TRS sound and vibration; develop the optimum TRS cross section design for road users’ comfort. Site investigation and social survey study had been carried out to classify the type of TRS profile used on the roadway and to assess the noise annoyance response towards TRS noise experienced by neighbourhood. Traffic noise assessment and controlled pass-by method were carried out to evaluate and estimate roadside noise level due to TRS and to analyse the possible tyre-TRS vibration mechanisms that were involved in the generation of TRS noise. In-cabin sound and vibration measurements were conducted to evaluate incabin vibration and sound due to TRS. Weber’s Law was used to determine appropriate vibration to road user comfort, hence optimum TRS cross section design was proposed. The results indicated that three main types of TRS profile existed on the road namely; raised rumbler, middle overlap and multi-layer overlap. Generally, respondents were annoyed with TRS noise. TRS noise depended on the factor of traffic volume, speed, TRS profile and thickness. TRS vibration depended on the factor of vehicle speed and TRS thickness. Raised rumbler’s profile generated the highest noise as a result from air pumping tyre-pavement mechanism. TRS optimum cross section design was proposed to enhance TRS performance in providing appropriate vibration to road user. 2016-04 Thesis http://eprints.utm.my/id/eprint/78221/ http://eprints.utm.my/id/eprint/78221/1/MohdHanifiOthmanPFKA2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:97198 phd doctoral Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Othman, Mohd. Hanifi Performance and modelling of transverse rumble strips on noise and vibration stimuli
description	Transverse rumble strips (TRS) are commonly used in reducing vehicle speed and increasing drivers’ alertness on roadway through optical, sound and vibration effects. However, when inappropriately designed, TRS sound and vibration may become too excessive, thus compromise road users’ comfort and annoy local residents who live adjacent to the roadway. This study aims to contribute to the knowledge that will be used to improve the optimisation of TRS cross-section design for road user’s comfort and sustainable living of the neighbourhood. The objectives of this study were to: classify TRS profiles and assess the noise annoyance response towards TRS noise; measure and model TRS roadside noise level and analyse the possible tyre-TRS interaction mechanisms that involved in the TRS roadside noise generation; evaluate and estimate vehicle in-cabin TRS sound and vibration; develop the optimum TRS cross section design for road users’ comfort. Site investigation and social survey study had been carried out to classify the type of TRS profile used on the roadway and to assess the noise annoyance response towards TRS noise experienced by neighbourhood. Traffic noise assessment and controlled pass-by method were carried out to evaluate and estimate roadside noise level due to TRS and to analyse the possible tyre-TRS vibration mechanisms that were involved in the generation of TRS noise. In-cabin sound and vibration measurements were conducted to evaluate incabin vibration and sound due to TRS. Weber’s Law was used to determine appropriate vibration to road user comfort, hence optimum TRS cross section design was proposed. The results indicated that three main types of TRS profile existed on the road namely; raised rumbler, middle overlap and multi-layer overlap. Generally, respondents were annoyed with TRS noise. TRS noise depended on the factor of traffic volume, speed, TRS profile and thickness. TRS vibration depended on the factor of vehicle speed and TRS thickness. Raised rumbler’s profile generated the highest noise as a result from air pumping tyre-pavement mechanism. TRS optimum cross section design was proposed to enhance TRS performance in providing appropriate vibration to road user.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Othman, Mohd. Hanifi
author_facet	Othman, Mohd. Hanifi
author_sort	Othman, Mohd. Hanifi
title	Performance and modelling of transverse rumble strips on noise and vibration stimuli
title_short	Performance and modelling of transverse rumble strips on noise and vibration stimuli
title_full	Performance and modelling of transverse rumble strips on noise and vibration stimuli
title_fullStr	Performance and modelling of transverse rumble strips on noise and vibration stimuli
title_full_unstemmed	Performance and modelling of transverse rumble strips on noise and vibration stimuli
title_sort	performance and modelling of transverse rumble strips on noise and vibration stimuli
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/78221/1/MohdHanifiOthmanPFKA2016.pdf
_version_	1747817936686415872

Performance and modelling of transverse rumble strips on noise and vibration stimuli

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