Dynamic modeling of traffic noise in both indoor and outdoor environments by using a ray tracing method

Qing, Hou; Cai, Ming; Wang, Haibo

doi:10.1016/j.buildenv.2017.05.031

Cited by 28 publications

(5 citation statements)

References 35 publications

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“…The empirical methods such as ISO model [23] and its developing model [24,25], taking building density and the effects of front buildings into consideration, resulting in relatively large errors. Validated with reasonable accuracy and efficiency [26,27], the geometric acoustic method has been applied in traffic noise simulation, which consists of beam tracing method (BTM) [28,29], ray tracing method (RTM) [30,31] and image source method (ISM) [32]. With the assumption of sound waves are non-flexural, these methods are suitable in traffic noise simulation in urban building area as the wavelengths of traffic noise are much smaller than the building dimensions usually.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Analysis of Road Traffic Noise among Urban Buildings Using Spatial Subdivision-Based Beam Tracing Method

Wang

Cai

Cui

2019

IJERPH

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In order to realize the simulation and evaluation of road traffic noise among urban buildings, a spatial subdivision-based beam-tracing method is proposed in this study. First, the road traffic source is divided into sets of point sources and described with the help of vehicle emission model. Next, for each pair of source and receiver, spatial subdivision-based beam-tracing method is used in noise paths generation. At last, noise distribution can be got by noise calculation of all receivers considering the complex transmission among urban buildings. A measurement experiment with a point source is carried out to validate the accuracy of the method; the 0.8 m height and 2.5-m height average errors are about 0.9 dB and 1.2 dB, respectively. Moreover, traffic noise analysis under different building layouts and heights are presented by case applications and conclusions can be reached: (1) Different patterns result in different noise distributions and patterns designed as self-protective can lead to an obvious noise abatement for rear buildings. Noise differences between the front and rear buildings are about 7–12 dB with different patterns. (2) Noise value might not show a linear variation along with the height as shielding of different layers is various in reality.

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Section: Introductionmentioning

confidence: 99%

Simulation and Analysis of Road Traffic Noise among Urban Buildings Using Spatial Subdivision-Based Beam Tracing Method

Wang

Cai

Cui

2019

IJERPH

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“…To create such app, the authors used building –related attributes, i.e., façades and wall as well as urban structures surrounding education facilities, i.e., locating urban/suburban and different types of roads. In another study, Hou et al [ 2 ] modeled a 3D ray tracing method to understand the reflections of the traffic noise. The study also assessed several parameters and found the method's validity about 1.68 dB for indoors.…”

Section: Simulation Estimation and Virtual Realitymentioning

confidence: 99%

Seeking the Nexus Between Building Acoustics and Urban Form: A Systematic Review

Yildirim

Arefi

2023

Curr Pollution Rep

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Purpose of Review Noise is penetrating urban life pervasively and is imperative for demonstrating the factors behind it regarding built environment, aka buildings and urban form. So, this review aims to provide a better understanding of the association between building acoustics and urban form characteristics. Recent Findings There is a growing attention for building acoustics, including materials and simulation aspects with various increasing urban form attributes, i.e., the built and natural environment and transportation. Summary Building acoustics is a key aspect of urban life and falls within the interface of various urban form characteristics. While these two main attributes are not sufficiently addressed, they may adversely affect individuals; thus, all the more reason to explore this nexus. This study has evaluated 67 peer-reviewed journal articles after systematically reviewing the triple resources in assessing building acoustics and urban form between 2016 and 2022. This review separates the indoor and outdoor categories within the simulation, theory, building materials, facade, and the built environment sub-categories. The study does not only review the overall scope of present studies but also direct future directions of their associations.

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“…Results show that a 20% increase in the percentage of heavy vehicles significantly increases the noise level, and this may be due to the reported noise from heavy vehicles and high contact area between the tyres of vehicles and the road surface [22]. Moreover, increase in heavy vehicles delays traffic by reducing the traffic speed [23], and this happens due to the inverse relation of % HV to road capacity. Similar results were reported by Rodriguez et al [24].…”

Section: Civil and Environmental Engineeringmentioning

confidence: 99%

Modelling of Traffic Noise Along Urban Corridor: A Case Study of Amman

Younes

Suleiman²,

Abushammala

et al. 2021

Civil and Environmental Engineering

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Noise became one of the main environmental indicators of the quality of urban life. The aim of this study was to develop a traffic noise model for an arterial road in Amman, the capital of Jordan, which was being subjected to a persistent increase in traffic and its related issues. The characteristics of the traffic and its relevant noise were analysed to develop a noise prediction model using an adaptive neuro-fuzzy inference system (ANFIS). A geographic information system (GIS) was then implemented to model the current noise along the arterial road. The results of ANFIS model showed that traffic delays and the percentage of heavy vehicles were the main causes of traffic noise generation within the urban area. However, the developed ANFIS model can simulate traffic noise with a relatively low root mean square error. Furthermore, this study will help to improve the perception about traffic noise and its development along arterial roads.

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Dynamic modeling of traffic noise in both indoor and outdoor environments by using a ray tracing method

Cited by 28 publications

References 35 publications

Simulation and Analysis of Road Traffic Noise among Urban Buildings Using Spatial Subdivision-Based Beam Tracing Method

Simulation and Analysis of Road Traffic Noise among Urban Buildings Using Spatial Subdivision-Based Beam Tracing Method

Seeking the Nexus Between Building Acoustics and Urban Form: A Systematic Review

Modelling of Traffic Noise Along Urban Corridor: A Case Study of Amman

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