scholarly journals Environmental noise control during its transmission phase to protect buildings. Design model for acoustic barriers based on arrays of isolated scatterers

2015 ◽  
Vol 93 ◽  
pp. 179-185 ◽  
Author(s):  
Sergio Castiñeira-Ibañez ◽  
Constanza Rubio ◽  
Juan Vicente Sánchez-Pérez
Keyword(s):  
Noise Control ◽  
Environmental Noise ◽  
Design Model ◽  
Transmission Phase

scholarly journals On the perception of Limited Traffic Zones as urban noise mitigation action

Noise Mapping ◽  
2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Luigi Maffei ◽  
Maria Di Gabriele ◽  
Massimiliano Masullo ◽  
Francesco Aletta
Keyword(s):  
Traffic Management ◽  
Noise Control ◽  
Local Population ◽  
Environmental Noise ◽  
Subjective Perception ◽  
City Management ◽  
Noise Mitigation ◽  
Urban Noise ◽  
One Year ◽  
Sonic Environment

AbstractEnvironmental noise is a very important issue in modern urban agglomerations and new policies are being explored in order to reduce high sound-pressure levels from transportation and industry, especially in urban contexts. Considering this issue from the subjective perspective, environmental noise is often related to noise annoyance. Over the years, possible solutions were explored for urban sound planning beyond the mere noise control engineering techniques and a number of international projects proposed innovative approaches to deal with this issue: most of them were traffic-related. In order to support the city management, it is suitable to analyse possible indirect effects of traffic limitations on the perception of the sonic environment. Indeed, it was observed that even traffic management plans with no specific focus on noise mitigation are likely to have acoustic implications. The present study investigated the variations of the sonic environment induced by the implementation of a Limited Traffic Zone (LTZ) in the historic centre of Naples, in terms of objective parameters and perceived quality of the ‘sound’ component by means of noise and social surveys before, immediately after and one year after the LTZ implementation, in order to check for possible time effects. Results show that the sample interviewed immediately after the LTZ implementation reported overall positive opinions on the sonic environment and its variation, while the sample interviewed one year after tended to shift to more neutral opinions. This finding suggests that the LTZ could be considered an effective environmental strategy for the urban noise control, but it should be adequately actuated in order to preserve the achievements in terms of noise reduction and subjective perception by the local population.

Design Optimization of Polyurethane Cored Three-Layered Carpeting

1994 ◽  
Vol 208 (3) ◽  
pp. 175-180 ◽  
Author(s):  
M K Ling
Keyword(s):  
Design Optimization ◽  
Control Systems ◽  
Single Unit ◽  
Noise Control ◽  
Interior Noise ◽  
Performance Characteristics ◽  
Design Model ◽  
Noise Levels

Multi-layered noise control systems are widely used in production vehicles to reduce interior noise levels. Traditionally, these systems had fibrous felt cores but increasingly moulded polyurethane (PUR) foam-backed carpets are now used. They provide the manufacturer with a single unit moulded car carpet, enabling easy and cheaper installation. However, little information has been published on their performance characteristics or their design optimization. This paper reports on work that examines the optimization of composite performance of these composites. A design model is developed which allows performance to be assessed before expensive road trials are carried out.

Developing of Environmental Noise Control

2012 ◽  
Vol 249-250 ◽  
pp. 1264-1267 ◽  
Author(s):  
Hai Ying Zhang ◽  
Guo Xian Ma
Keyword(s):  
Teaching Methods ◽  
Noise Control ◽  
Environmental Noise ◽  
Environmental Engineering ◽  
Basic Knowledge ◽  
Course Content ◽  
Control Technologies ◽  
And Control

Environmental noise control is a compulsory special course for students of Environmental Engineering. Through leaning this course, the students should know basic knowledge of noise, noise control technologies and how to test and control environmental noise. With increasing importance attached on environment, requirement of noise control is more stringent than ever before. In order to maintain the competitiveness of undergraduates, it is necessary to give the course in bilingual language, especially those who study in Environmental Engineering. This paper first analyzes the characteristics and probes the problems of this course. Then it proposes a developing plan for the course from the following aspects: necessity of learning this course, course aims, course content, related courses and teaching methods.

Sound Insulation of Energy Efficient Facade Construction

2015 ◽  
Vol 801 ◽  
pp. 77-83
Author(s):  
Ana Vukadinović ◽  
Jasmina Radosavljević ◽  
Milan Protić ◽  
Jelena Malenović-Nikolić
Keyword(s):  
Energy Efficient ◽  
Urban Areas ◽  
Noise Control ◽  
Environmental Noise ◽  
Sound Insulation ◽  
Community Noise ◽  
The Eu ◽  
Noise Management

Environmental noise affects a large number of people. It is estimated that 20% of the EU population, or around 80 million people live in conditions of unacceptable noise. Three key possibilities for community noise management are control at the source of noise, control at the path from source to receiver and protection at the place of reception. In all three cases, noise should be reduced to the lowest level achievable in the particular situation. This study deals with the problem of protection against community noise at the receiving site. The paper considers the energy efficient façade construction and how they contribute to the protection of noise in urban areas.

Resource Letter ENC‐1: Environmental noise control

1978 ◽  
Vol 46 (5) ◽  
pp. 444-454 ◽  
Author(s):  
Thomas D. Rossing
Keyword(s):  
Noise Control ◽  
Environmental Noise

Managing Environmental Noise Associated With Pipeline Facilities in Canada

1996 ◽  
Author(s):  
David C. DeGagne
Keyword(s):  
Sound Propagation ◽  
Noise Control ◽  
Environmental Noise ◽  
Additional Cost ◽  
Pipeline Transportation ◽  
Drawing Board ◽  
Regulatory Economic

Today’s new pipeline projects have to meet countless technical, regulatory, economic, or social requirements before they can go from the drawing board to reality. One of the more recent considerations is in the area of environmental noise. Environmental noise from pipeline facilities is particularly difficult to control because of the complexities of sound propagation and the subjective nature of that sound relative to some receptor. The extent of noise control from facility equipment such as compressors, coolers, piping, valves, blowdown, emergency flares, even telephone horns, therefore, becomes very difficult to estimate. There must be some understanding of baseline expectations from all interested parties. In addition, pipeline operators must treat environmental noise control as an integral part of project concept and design and not as an afterthought or additional non-core responsibility. Environmental noise control is not an additional cost, it is part of the overall cost of the pipeline transportation business.

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