A new trial for statistical estimation of road traffic noise in an arbitrary sound propagation environment by use of Stratonovich's viewpoint for random points system

1978 ◽  
Vol 64 (S1) ◽  
pp. S29-S29
Author(s):  
S. Yamaguchi ◽  
M. Ohta ◽  
K. Hatakeyama
Keyword(s):  
Statistical Estimation ◽  
Sound Propagation ◽  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise

scholarly journals Combining VR Visualization and Sonification for Immersive Exploration of Urban Noise Standards

2019 ◽  
Vol 3 (2) ◽  
pp. 34 ◽  
Author(s):  
Markus Berger ◽  
Ralf Bill
Keyword(s):  
Real Time ◽  
Sound Propagation ◽  
Road Traffic ◽  
Expert Knowledge ◽  
Low Cost ◽  
Traffic Noise ◽  
Urban Traffic ◽  
Road Traffic Noise ◽  
Common Noise ◽  
Noise Assessment

Urban traffic noise situations are usually visualized as conventional 2D maps or 3D scenes. These representations are indispensable tools to inform decision makers and citizens about issues of health, safety, and quality of life but require expert knowledge in order to be properly understood and put into context. The subjectivity of how we perceive noise as well as the inaccuracies in common noise calculation standards are rarely represented. We present a virtual reality application that seeks to offer an audiovisual glimpse into the background workings of one of these standards, by employing a multisensory, immersive analytics approach that allows users to interactively explore and listen to an approximate rendering of the data in the same environment that the noise simulation occurs in. In order for this approach to be useful, it should manage complicated noise level calculations in a real time environment and run on commodity low-cost VR hardware. In a prototypical implementation, we utilized simple VR interactions common to current mobile VR headsets and combined them with techniques from data visualization and sonification to allow users to explore road traffic noise in an immersive real-time urban environment. The noise levels were calculated over CityGML LoD2 building geometries, in accordance with Common Noise Assessment Methods in Europe (CNOSSOS-EU) sound propagation methods.

State-of-the-Art Prediction and Control of Road Traffic Noise in France

1998 ◽  
Vol 1626 (1) ◽  
pp. 71-77 ◽  
Author(s):  
Michel C. Bérengier ◽  
Fabienne Anfosso-Lédée
Keyword(s):  
Sound Propagation ◽  
Road Traffic ◽  
Numerical Models ◽  
Traffic Noise ◽  
Low Noise ◽  
Road Traffic Noise ◽  
Road Noise ◽  
The Road ◽  
Road Pavement ◽  
Prediction And Control

Because traffic noise is considered by the French population as the primary environmental nuisance, prediction of road traffic noise and development of efficient noise control techniques is very important. The first step is to analyze the source, the main part of which is due to the contact between tires and the road pavement. Many efforts have been devoted to the assessment of a reliable measurement method, and a classification of road pavements in relation to noise has been established for some years. To abate road traffic noise, special attention has been paid to low-noise pavements. Thus, the modeling of the absorption properties of porous asphalts has been particularly studied in the past 10 years. The second step is to understand the physics of sound propagation outdoors, especially the meteorological effects on the propagation of road traffic noise. Both theoretical and experimental approaches have been undertaken. Finally, the effect of road noise barriers of any shape on the propagation of road noise and their interaction with porous road surfaces have been investigated by using numerical models.

Influence of microclimatic elements on sound propagation in Amazonian cities: The case of urban noise in Belem.

2021 ◽  
Vol 263 (1) ◽  
pp. 5708-5719
Author(s):  
Vânia Raposo de Moura dos Santos ◽  
Gustavo Melo
Keyword(s):  
Urban Environment ◽  
Atmospheric Pressure ◽  
Sound Propagation ◽  
Road Traffic ◽  
Meteorological Data ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Urban Noise ◽  
Air Ventilation ◽  
Microclimatic Conditions

Many studies have shown that microclimatic elements influence the sound propagation in cities, and can contribute to increasing or decreasing the urban noise. This paper aims to discuss the relationship between main microclimatic elements - air temperature, air humidity, atmospheric pressure and winds - and the noise caused by road traffic in an Amazonian urban environment, in order to emphasize the importance of urban planning instruments be adapted to the specific microclimatic conditions, promoting the improvement of the urban environment from more efficient building strategies for controlling the sound pollution. For this, it's used as basis a theoretical framework on the topic, meteorological data from Brazil's National Institute of Meteorology and illustrative maps of the city of Belem. It was found that the temperature, humidity and atmospheric pressure, for this microclimate, do not collaborate for reducing road traffic noise, leaving this responsibility to the winds (air ventilation) and the way they behave within the built urban mass. KEYS Urban noise - Urban Microclimate - Amazonian environment

Environmentally Progressive Road Traffic Noise Reducing Devices and Materials

2016 ◽  
Vol 832 ◽  
pp. 144-151
Author(s):  
Martin Decky ◽  
Matúš Kováč ◽  
Eva Remišová
Keyword(s):  
Sustainable Development ◽  
Sound Propagation ◽  
Road Traffic ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Scientific Paper ◽  
Road Traffic Noise ◽  
Reference Framework ◽  
Specific Objective

This paper analyses issues of progressive road traffic noise reducing devices design and evaluating the quality of asphalt road surfaces from the perspective of the Permanent Sustainable Development, which is one of the horizontal priorities of the National Strategic Reference Framework for the period from 2007 to 2013. The horizontal priority (HP) Permanent Sustainable Development (PSD) of the National Strategic Reference Framework (NSRF) has been complementary affecting the objectives of the NSRF. The purpose of the HP is to ensure targeted achievement on several priorities of the NSRF, which cannot be provided by a single Operational Program (OP), but requires a coordinated approach combining several specific priorities / priority axes / actions, or more precisely the projects of particular OPs. Within the specific objective of enhancing the quality of the environment has been directly defined sub-goal - to reduce noise pollution of environment. The scientific paper is concerned with measurements of the noise production and sound propagation on four different roads, where the source of the noise was the same vehicle driving at five different speeds.

Road Traffic Noise Prediction Model

2012 ◽  
Vol 3 (4) ◽  
pp. 110-112
Author(s):  
Rahul Singh ◽  
◽  
Parveen Bawa ◽  
Ranjan Kumar Thakur
Keyword(s):  
Prediction Model ◽  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Noise Prediction

SPEED DISTRIBUTION INFLUENCE IN ROAD TRAFFIC NOISE PREDICTION

2013 ◽  
Vol 12 (3) ◽  
pp. 493-501 ◽  
Author(s):  
Gerardo Iannone ◽  
Claudio Guarnaccia ◽  
Joseph Quartieri
Keyword(s):  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Noise Prediction ◽  
Speed Distribution

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

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Herni Halim ◽  
◽  
Nur Fatin Najiyah Hamid ◽  
Mohamad Firdaus Mahamad Yusob ◽  
Nur Atiqah Mohamad Nor ◽  
...  
Keyword(s):  
Road Traffic ◽  
Traffic Noise ◽  
Road Traffic Noise ◽  
Residential Areas ◽  
Noise Levels ◽  
Different Types
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