Noise Annoyance Produced by Commercial Vehicles Transit on Rumble Strips

Haron Zaiton,Abu Samah Rosiah,Abdul Hameed Abdul Mutalif,Hezmi Muhammad Azril,Yahya Khairulzan,Mashros Nordiana,Abd Halil Muhammad Habab,Norudin Wan Mohammad Asyraf,Darus Nadirah,Othman Mohd Hanifi,Jahya Zanariah,N Mohamed Noor,A.W Azhari

doi:10.1051/e3sconf/20183402023

Haron Zaiton, Abu Samah Rosiah + Show 11 more

Open Access

https://doi.org/10.1051/e3sconf/20183402023

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Abstract

This paper reports on research examining the extent of noise annoyance affecting residents within the vicinity of installation of two types of transverse rumble strips (TRS), namely Middle Overlapped (MO) and Multilayer Overlapping (MLO). In order to assess the noise annoyance in the area, measurements were taken at 7.5m from centre of road with TRS installation using single vehicle test to determine the extent of changes of sound level indices and sound spectrum. Two light and two medium weight commercial vehicles were used. Indicators LAeq, LAFmax, LAImax, LAIeq, and LASmax were used to determine impulsivity that led to noise annoyance. The results showed that, at 30 km/h, all commercial vehicles considered in this study that transited on MO produced impulsive noise, while only light commercial vehicles caused noise annoyance when they transited on MLO. The research also analysed the extent of low-frequency noise and found a significant low-frequency component, which indicated that noise annoyance might arise from the hitting of MO and MLO by the commercial vehicles. For night-time related annoyance, it was suggested that an additional weighting factor could be added to the average A-weighted value during night-time.

Highlights

Rumble strips can be defined as a set of yellow bars painted on the pavement with a specific thickness to alert road users through their colour, sound, and physical vibrations
The relationship between the LAeq produced with speed and Middle Overlapped (MO) and Multilayer Overlapping (MLO) is shown in Fig. 2 (a) and (b), respectively
The increasing trend in sound level with GVW was found to be in polynomial equation of second degree with very good relationship, where the GVW explained more than 90% of the variations

Summary

Introduction

Rumble strips can be defined as a set of yellow bars painted on the pavement with a specific thickness to alert road users through their colour, sound, and physical vibrations. TRS have a specific sectional profile and they are laid perpendicular to the vehicle's flow. TRS are used to inform road users that there is a change in the road environment that requires drivers to be more cautious. These are the alternatives used to reduce accident rate as they give drivers a warning to slow down

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