A road traffic noise pattern simulation model that includes distributions of vehicle sound power levels

Coensel, Bert De; Brown, A L; Tomerini, Deanna Majella

doi:10.1016/j.apacoust.2016.04.010

Cited by 36 publications

(18 citation statements)

References 30 publications

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“…Noise produced was not steady as noise level changed with time. The energy equivalent levels of road traffic streams have a pattern of fluctuation of noise levels over time that they associated with annoyance and other circumstances, depending the noise emission vehicles on the road traffic stream and the volume of the traffic flow [10].…”

Section: Methodsmentioning

confidence: 99%

“…According to the Löbig and Weber [9], the environmental noise is the cause of sleep disturbance, triggering the release of stress hormone level, induced annoyance and developer of hearing impairment on human well-being. People that are living close to the roadway will notice frequently noise events occurring in the traffic streams and tend to get sleep disturbance [10].…”

Section: Introductionmentioning

confidence: 99%

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Road Traffic Noise Levels at Different Types of Residential Areas in Nibong Tebal, Penang

Halim¹,

Hamid²,

Yusob³

et al. 2019

IJIE

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Traffic vehicles on the road networks during their movement create noise that has greater impact on environment. The sources, the receivers and the place of transition, where the sound wave propagates, are the three vital parameters for the field of noise acoustics. For this research, the aim of this study is to assess traffic noise levels between different types of residential areas in Nibong Tebal, Penang. The study is carried out in order to achieve the following three main objectives, which are to assess the level of traffic noise at selected residential areas, to characterize the traffic flow composition nearby study areas, and to compare noise levels between low density and terraced house residential areas. The noise levels measurements were carried out periodically in the morning (from 0700 to 1100), evening (from 1600 to 1900), and at night (from 2200 to 2300) for 15 minutes using a sound level meter. The traffic characteristics were measured simultaneously during noise levels measurements. The highest equivalent continuous noise levels for the low density residential areas was at Kampung Batu 2 in the evening with 65.9 dB(A), while for the medium density residential areas, Taman Sri Acheh contributed 68.60 dB(A) during the morning. The lowest equivalent continuous noise levels were obtained at Kampung Simpang Tiga in the morning that contributed 54.9 dB(A) for low density residential areas. However, the minimum equivalent continuous noise levels obtained for the medium density residential areas was at Taman Ilmu Indah in the morning with 63.10 dB(A). The results obtained, clearly show that the equivalent continuous noise level for all study sites exceeded the maximum permissible sound level for medium density areas during daytime (from 7.00 am to 10.00 pm), which is 55 dB(A), while at night time (from 10.00 pm to 7.00 am) is 45 dB(A), and for low density residential areas during daytime (from 7.00 am to 10.00 pm) is 55 dB(A), while at night time (from 10.00 pm to 7.00 am) is 45 dB(A), respectively. These values are based on the guidelines for environmental noise limits and control by the Department of Environment, Malaysia.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Road Traffic Noise Levels at Different Types of Residential Areas in Nibong Tebal, Penang

Halim¹,

Hamid²,

Yusob³

et al. 2019

IJIE

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show abstract

“…Noise produced was not steady as noise level changed with time. The energy equivalent noise levels of road traffic streams has a pattern of fluctuation over time that they associated with annoyance, depending on the noise emission from vehicles on the road traffic stream and the volume of the traffic flow [8].…”

Section: Methodsmentioning

confidence: 99%

Comparison of Road Traffic Noise at Residential Areas in Klang Valley, Selangor and Nibong Tebal, Penang

Nor¹

2019

IJIE

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“…The instantaneous sound level in free field caused by road traffic is simulated using the road traffic noise pattern simulation model described in De Coensel et al [46]. This model, called Noysim2, combines a microscopic simulation of road traffic with an instantaneous vehicle noise emission and a point-to-point sound propagation model.…”

Section: Simulation Of Instantaneous Sound Levelmentioning

confidence: 99%

“…Subsequently, the instantaneous emission of all sources is calculated using a noise emission model that includes distributions of vehicle sound power levels [46]. This model is based on the Imagine road traffic noise emission…”

Section: Simulation Of Instantaneous Sound Levelmentioning

confidence: 99%

A study of the performance of a generalized exceedance algorithm for detecting noise events caused by road traffic

Brown

Coensel

2018

Applied Acoustics

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A key question for road traffic noise management is whether prediction of human response to road traffic noise could be improved by accounting for noise events instead of, or in addition to, energy equivalent or percentile measures of noise exposure. However, there is a critical prior question: how should noise events in road traffic be measured? Even at moderate traffic flow rates, detecting and counting noise events caused by road traffic is not a trivial exercise, and as yet there is no generally accepted noise event detection algorithm. This paper investigates the performance of a generalized exceedance algorithm for detecting noise events, constructed on the basis of the literature on noise events caused by road traffic. For this purpose, a microscopic traffic simulation model, coupled to an emission model that accounts for distributions of sound power levels of individual vehicles, is used to simulate one-hour time histories of the noise level in the proximity of a roadway, for an exhaustive set of traffic flow/composition and propagation distance conditions in unshielded locations. The validity and reliability of the number of noise events detected by the generalized algorithm in these one-hour time histories is then evaluated for a range of algorithm parameter sets. By discarding parameter sets that do not result in an algorithm that returns valid or reliable counts, and by examining redundancy in the remaining ones, a small number of representative parameter sets is identified, which may prove useful in the construction of event-based indicators supplementary to energy-equivalent measures of road traffic noise.

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A road traffic noise pattern simulation model that includes distributions of vehicle sound power levels

Cited by 36 publications

References 30 publications

Road Traffic Noise Levels at Different Types of Residential Areas in Nibong Tebal, Penang

Road Traffic Noise Levels at Different Types of Residential Areas in Nibong Tebal, Penang

Comparison of Road Traffic Noise at Residential Areas in Klang Valley, Selangor and Nibong Tebal, Penang

A study of the performance of a generalized exceedance algorithm for detecting noise events caused by road traffic

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