scholarly journals Main aspects of environmental protection from urban noise

2021 ◽  
Vol 23 (96) ◽  
pp. 88-92
Author(s):  
V. M. Storozhuk ◽  
B. Y. Kshyvetskyy ◽  
O. M. Mayevska ◽  
H. V. Somar ◽  
I. A. Sokolovskyi ◽  
...  
Keyword(s):  
Negative Impact ◽  
Power Level ◽  
Noise Pollution ◽  
Sound Insulation ◽  
Building Structures ◽  
Noise Sources ◽  
Urban Noise ◽  
Modern Cities ◽  
Architectural Planning ◽  
Surrounding Areas

The main sources of noise pollution in modern cities, that generate significant levels of sound pressure, which significantly, sometimes at times exceed permissible noise levels have been identified. The consequences of the negative impact of noise of the urban environment on the human body, fauna and flora are described. The sanitary-hygienic, engineering-technical, architectural-planning, construction-acoustic and economic-social aspects of scientific researches concerning protection of the environment from noise pollution are singled out. The main methods and ways to reduce urban noise are described, among which are: reducing the sound power level of existing equipment and vehicles, or replacing them with less noisy ones, and during design-taking measures to minimize noise emissions from machines; carrying out timely cleaning, adjustment, repair of machines, mechanisms and equipment, restriction or complete prohibition of noisy works and operation of the most intensive noise sources at night; rational orientation of the noise source or place of noise radiation, taking into account the direction indicator; placement of noise sources and objects of protection – at the maximum possible distance from each other; the use of building structures with improved sound insulation, the use of sound-absorbing materials for lining the enclosing structures of buildings and structures; zoning of sources and objects of protection, application of territorial gaps, noise protection buildings, acoustic screens and strips of greenery. It was found that the maximum possible impact on noise pollution of modern cities and surrounding areas can be achieved in the case of integrated application of methods, means of protection against acoustic blocking of the duration, direction and use of noise emissions in its sources and through noise level on the way to its spread, as well as through the implementation of appropriate organizational and technical measures.

Vibro-Acoustic Comfort Assessment Methodology of Residential Buildings in Urban Environment

2014 ◽  
Vol 1041 ◽  
pp. 428-431 ◽  
Author(s):  
Marian Flimel
Keyword(s):  
Urban Environment ◽  
Residential Buildings ◽  
Evaluation Criteria ◽  
Objective Evaluation ◽  
Sound Insulation ◽  
Building Structures ◽  
Assessment Methodology ◽  
Noise Sources ◽  
Acoustic Comfort ◽  
And Performance

Noise in residential buildings should be assessed not only in terms of impact on health, safety and performance of inhabitants, but also for the “value” of the building (apartment) in a certain environment. Building energetic certification implementation is one of the first compulsory legislative evaluation criteria. This paper wants to draw the attention to the need for vibro-accoustic building (apartment) certification. Presented tabular evaluation is an objective evaluation. The reason for that are the tendencies related to noise in environment: increased number and levels of noise sources in buildings’ exterior and interior, increasing demands for sound insulation of building structures and growing number of “noise” complaints.

scholarly journals MEDICAL AND BIOLOGICAL ASPECTS OF ACOUSTIC POLLUTION OF URBANIZED AREAS

Akustika ◽  
2019 ◽  
Vol 32 ◽  
pp. 39-44
Author(s):  
Igor Lykov ◽  
Nadezhda Loboda ◽  
Alexey Streltsov
Keyword(s):  
Negative Impact ◽  
Traffic Noise ◽  
Noise Pollution ◽  
Well Being ◽  
Chemical Pollution ◽  
Urban Noise ◽  
Factors Affecting ◽  
Different Seasons ◽  
The Many ◽  
The City

Noise pollution of the urban environment in recent years has become a serious environmental and social problem, a threat to the health and well-being of the population. Although noise for the population is not such a priority, as, for example, chemical pollution of air and water, but it has always been the subject of public interest. There are varieties of noise generation sources of which the traffic noise could be a major source. Among the many factors affecting the health of the population, urban noise is the most common and aggressive. The article deals with the problem of the negative impact of noise on human health and on the structure of the general morbidity of the population. The authors addressed the problem of noise pollution in the city of Kaluga. Presents the dynamics of changes in the number of cars and noise pollution over the past ten years. It is shown that today cars are the dominant sources of urban noise environment. The interpretation of the results of full-scale acoustic measurements carried out on the main urban highways is given. The regularities of changes in noise levels in different seasons of the year are revealed. It is concluded that the permissible values of acoustic effects in the city of Kaluga are exceeded. The results of the integrated assessment of child morbidity associated with an increase in the number of vehicles in the city and an increase in acoustic load are presented.

Problems in the Designing of Acoustic Properties of Musical Rehearsals

2016 ◽  
Vol 861 ◽  
pp. 519-526
Author(s):  
Dušan Katunský ◽  
Jana Katunská ◽  
Iveta Bullová ◽  
Richard Germánus
Keyword(s):  
Noise Pollution ◽  
Acoustic Properties ◽  
Room Acoustics ◽  
Sound Insulation ◽  
Building Structures ◽  
Internal Environment ◽  
Reverberation Time ◽  
Acoustic Performance ◽  
Methods Of Calculation ◽  
Building Acoustics

Content of the post is to describe the creation of building structures, typology, internal environment, and internal wall coverings music rehearsal for optimal acoustic performance. One of the aspects of its internal environment is reverberation time. For this variable there are several methods of calculation. Article gives an indication of how the music was the laboratory building in the center of the music created and what problems the authors in its proposal met. Article contents and solving spatial and building acoustics model music musical rehearsal building downtown. Calculation fully respects Slovak standards valid for the design of room acoustics, as well as hygiene regulations on noise pollution. Acoustically treated room should serve as a laboratory for musical performance. If the building is more proof is needed to solve the sound insulation (building acoustics) that these areas do not interfere with each other. In addressing acoustics of testing can’t talk about bad or good acoustics, but rather on the season and out of corresponding with room acoustics, respectively, with activities in it.

scholarly journals Parameters Affecting Noise Emitted by Ships Moving in Port Areas

2020 ◽  
Vol 12 (20) ◽  
pp. 8742 ◽  
Author(s):  
Marco Nastasi ◽  
Luca Fredianelli ◽  
Marco Bernardini ◽  
Luca Teti ◽  
Francesco Fidecaro ◽  
...  
Keyword(s):  
Minimum Distance ◽  
Noise Exposure ◽  
Power Level ◽  
Video Recording ◽  
Point Of View ◽  
Special Focus ◽  
Noise Sources ◽  
Port Area ◽  
Surrounding Areas ◽  
The Right

Only recently has noise been considered in the assessment of the sustainability of port infrastructures, after decades of unawareness. INTERREG Maritime projects unveiled problems that have been neglected so far, such as the lack of proper regulation and noise exposure assessments for citizens. While it is true that a port area includes a huge variety of possible noise sources, very few of them have been characterized from an acoustical point of view. INTERREG projects have boosted research in the field, and previous studies have dealt with noise produced by moving ships in ports. The present work starts from a previous measurement campaign used to obtain broadband and 1/3-octave-band noise emissions of moving ships, and it aims to explain their uncertainties. More than a month’s worth of continuous acoustic measurements and video recordings were deeply analyzed in order to obtain an input database that is as precise as possible. A multiple regression analysis was performed in order to understand the influence that parameters such as minimum distance, speed, and draught have on ships’ noise emissions, which were calculated using pass-by measurements, with a special focus on ferries. The minimum distance of each ship’s passage from the microphone was measured using a video recording with an innovative methodology, providing results with 3 m of uncertainty. Knowing which parameter is more influential would help in planning proper measurements for monitoring or for drafting correct guidelines. Draught was determined to be uninfluential in ferries’ noise emissions, while the minimum distance and speed relations were estimated and accounted for in the calculation of a refined sound power level. From a spectrum point of view, the frequencies from 500 Hz to 2.5 kHz were determined to be those that contributed the most to the noise produced by the transit of a ship, and they vary with speed. With the studied corrections, different ferry models resulted in similar noise emissions. The standard deviation of noise emitted was reduced by 0.5 dB (A), and the average was also improved by positioning the ships’ flow at the correct average minimum distance. Furthermore, the right placement of a source is also important in the acoustic mapping phase for a correct evaluation of the propagation of noise at a distance. The use of more precise input data is important for improving the output of acoustic propagation models during the assessment of port noise in the surrounding areas.

scholarly journals Beaten ballots: political participation dynamics amidst police interventions

2021 ◽  
pp. 1-18
Author(s):  
Toni Rodon ◽  
Marc Guinjoan
Keyword(s):  
Political Participation ◽  
Negative Impact ◽  
Spatial Dynamics ◽  
Spillover Effects ◽  
Political Mobilization ◽  
Starting Point ◽  
Positive Spillover ◽  
Police Crackdown ◽  
Surrounding Areas ◽  
Empirical Approaches

Abstract What is the effect of violence on political mobilization? Taking the repression-mobilization nexus debate as a starting point, we study the effects of police interventions on political participation, focusing on the Spanish police crackdown on Catalonia's independence referendum on 1 October 2017. We analyze the effect of police actions on turnout using detailed aggregate data, as well as a survey conducted a few days after the referendum. The two empirical approaches show that police interventions had both deterrent and inverse spatial spillover effects. Although police raids had a local negative impact on turnout, they induced positive spillover effects in the surrounding areas. Our findings also indicate heterogeneity in the spatial dynamics, with police actions encouraging people to go to vote in nearby areas, but also mobilizing residents in neighboring areas to participate, especially those individuals with fewer incentives to turn out to vote.

Untersuchung der Regelwerke für den passiven Schallschutz unter Berücksichtigung aktueller Verkehrslärmspektren – Teil 1

2020 ◽  
Vol 15 (01) ◽  
pp. 17-21
Author(s):  
J. Weinzierl ◽  
W. Wieland
Keyword(s):  
Correction Term ◽  
Spectral Composition ◽  
Sound Insulation ◽  
Assessment Procedure ◽  
Noise Sources ◽  
Frequency Dependent ◽  
Protection Goal ◽  
Passive Noise ◽  
Sound Reduction ◽  
Spectrum Adaptation

In den Regelwerken zum passiven Schallschutz von Umfassungsbauteilen wird das erforderliche Schalldämm-Maß der Fassade als Einzahlwert entsprechend dem Bewertungsverfahren nach DIN EN ISO 717-1 [1] ermittelt. Um die spektrale Zusammensetzung verschiedener Lärmquellen und die frequenzabhängige Schalldämmung von Fassadenbauteilen zu berücksichtigen, werden in den einschlägigen Regelwerken Korrektursummanden bzw. Spektrum-Anpassungswerte verwendet. Im folgenden Beitrag wird der Einfluss verschiedener Außenlärmspektren und frequenz- abhängiger Schalldämm-Maße auf den Innenpegel diskutiert. Insbesondere werden die Unterschiede zwischen Holz- und Massivbauweise bezüglich des Schutzziels bzw. des Innenpegels betrachtet. Die Untersuchungen zeigen, dass keine generelle Differenzierung zwischen Leicht- und Massivbauweise erforderlich ist. Für hochschalldämmende Leichtbaukonstruktionen mit einem Ctr,50–5000 < –8 dB wird jedoch ein Korrekturterm für das erforderliche Fassaden-Schalldämm-Maß zur Sicherstellung des Schutzziels vorgeschlagen. &nbsp; &nbsp; Summary In the regulations for passive noise protection of surrounding components, the required sound reduction index of the facade is determined as a single value according to the assessment procedure according to DIN EN ISO 717-1 [1]. In order to take into account the spectral composition of different noise sources and the frequency-dependent sound insulation of facade components, correction summands or spectrum adaptation values are used in the relevant regulations. The following article discusses the influence of various outside noise spectra and frequency-dependent sound insulation measures on the inside level. In particular, the differences between wood and solid construction were considered with regard to the protection goal and the internal level. The investigations show that no general differentiation between lightweight and solid construction is necessary. For highly sound-insulating lightweight constructions with a Ctr, 50–5000 <-8 dB, however, a correction term for the required facade soundproofing dimension to ensure the protection goal is proposed. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;

Field Test Research on Environmental Noise Characteristics in the Throat Area of Metro Depot

2021 ◽  
Vol 263 (5) ◽  
pp. 1818-1822
Author(s):  
Lei He ◽  
Ruixiang Song ◽  
Jie Yang ◽  
Yubin Wu ◽  
Yanan Wu
Keyword(s):  
Field Test ◽  
Open Space ◽  
Noise Pollution ◽  
Environmental Noise ◽  
Statistical Characteristics ◽  
Small Radius ◽  
Time Frequency ◽  
Noise Characteristics ◽  
Train Operation ◽  
Surrounding Areas

Environmental noise pollution is the primary environmental problem faced by the superstructure of metro depots. The throat area of depot is prone to high wheel-rail impact noise due to the use of seam lines, multiple joints, turnouts and small radius curves. The noise exerts through fire and ventilation openings on the side walls, which may cause high annoyance to the residents in the superstructures both on the upper cover and surrounding areas. In this paper, a field test was condected on the environmental noise in the throat area of metro depot. The noise of the trackside and adjacent open space were recorded, and the time-frequency domain characteristics and statistical characteristics and attenuation law of the noise generated by train operation in the throat area were analyzed. The research results have certain guiding significance for the prediction and control of noise in the throat area of the depot.

Approaches to Urban Noise Management in India

2012 ◽  
Author(s):  
Neelima S. Naik
Keyword(s):  
Urban Areas ◽  
Central Government ◽  
Environmental Concern ◽  
Noise Pollution ◽  
Noise Levels ◽  
Urban Noise ◽  
Master Plans ◽  
The Past ◽  
Metropolitan Cities

Noise pollution in urban areas is recognized as a major environmental concern in India. The lack of infrastructure and fast paced life in major metropolitan cities of India has made the urban environment extremely crowded, busy as well as noisy and as a result the millions of people living in the major metropolitan areas are suffering from the impacts of noise pollution. Noise levels are escalating at such a rate that it has become a major threat to the quality of human lives. Direct links between noise and health have been established by research conducted over the past few decades. There are several causes for urban degradation such as population migration, environmental considerations not adequately being incorporated into master plans, uncoordinated and haphazard development, weak implementation of plans and laws and inadequate institutional competences and resource crunch. This paper discusses the causal factors, impacts and the different approaches adopted by the Central Government as well as some major State Pollution Control Boards to curb the urban noise problem and the need for looking into non-conventional solutions such as Ecocity programme to bring in visible environmental improvement.

scholarly journals Applying of green building standards for implementation of the city development strategies in Kyiv.

2019 ◽  
Vol 3 (1) ◽  
pp. 16-30
Author(s):  
Dmytro Varavin ◽  
Tetiana Kryvomaz
Keyword(s):  
Environmental Protection ◽  
Public Space ◽  
Development Strategy ◽  
Negative Impact ◽  
Green Building ◽  
Building Structures ◽  
City Development ◽  
Land Relations ◽  
Building Standards ◽  
The City

The main tasks of the "Kyiv City Development Strategy until 2025" are in development and reconstruction of the city, improvement of its infrastructure and environmental protection, which perfectly correlates with the basic principles of green building. This is the modern practice in construction, reconstruction and the exploitation of buildings, in which they im-plement optimal architectural solutions, advanced engineering systems and materials for re-ducing of energy consumption and material resources, it is the process of improving the qual-ity of buildings and the comfort of their internal environment, improving of impact of build-ings on the health of people by minimizing the negative impact on the environment at all stag-es of life cycle of building structures. The practice of the tasks outlined in the Strategy will significantly contribute to the implementation of international environmental standards and to the application of constructive solutions of green building technologies. In particular it ap-peals to such urban development sectors as city development and land relations, housing and communal services, transport and urban mobility, environmental policy and environmental protection, public space, security and civil protection, historical and architectural heritage.

scholarly journals Quiet! Okay, But How?

1999 ◽  
Vol 121 (04) ◽  
pp. 70-71
Author(s):  
M.A. Zaher
Keyword(s):  
Occupational Safety ◽  
Power Level ◽  
Noise Pollution ◽  
The United States ◽  
Operating Pressure ◽  
Air Velocity ◽  
Sound Power Level ◽  
Conflicting Demands ◽  
Safety And Health ◽  
Pneumatic Tool

This article focuses on pneumatic tools that are among the most damaging sources of noise pollution. The National Institute for Occupational Safety and Health estimates that more than 30 million workers in the United States are exposed to hazardous noise, costing the economy about $1 billion every year. There is no magic solution to all noise control problems, and this remains true even when we are dealing just with pneumatic tools. Each case must be considered separately, and the solution to be used must satisfy the often conflicting demands of at least five criteria simultaneously. The sound power level produced by a pneumatic tool is a product of many interrelated parameters: operating pressure, pressure drop, expansion volume, exhaust air velocity, speed of device, exhaust air, airflow, length of exhaust path, and tool power. Good standards are available for evaluating the noise of many components, and suppliers provide data on their products that can be used for comparison.

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