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Różnorodność krajobrazu dźwiękowego Parku Śląskiego

Miterska Magdalena, Kompała Janusz

Bezpieczeństwo Pracy : nauka i praktyka

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2023

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nr 2

20-24

PL

Park Śląski o powierzchni 535 hektarów znajduje się w centrum największej polskiej aglomeracji i stanowi miejsce wypoczynku mieszkańców pobliskich miast. Przeanalizowano krajobrazy dźwiękowe w różnych częściach parku: w Wesołym Miasteczku, zoo, skansenie, ogrodzie różanym, na Polach Marsowych oraz w okolicach planetarium. W wyniku badań wyodrębniono w parku strefy głośne i ciche. Wskazano na znaczenie odpowiedniego projektowania parków miejskich względem hałasu w ich otoczeniu. Ze względu na obszary o różnym przeznaczeniu i lokalizację parku jego poszczególne części różnią się krajobrazem dźwiękowym. W artykule przedstawiono charakterystykę krajobrazu dźwiękowego poszczególnych obszarów Parku Śląskiego.

EN

The 535-hectare Silesian Park is located in the centre of the largest conurbation in Poland and offers a recreation area to the inhabitants of nearby cities. Soundscapes in the following parts of the park were analysed: amusement park, zoo, ethnographic museum, rose garden, Field of Mars and the vicinity of the planetarium. Quiet and loud zones were identified as a result of the studies. The significance of appropriate urban park planning with regard to noise levels in the park environment was demonstrated. Due to the various purposes of the park areas and the park location itself, individual parts of the complex exhibit different soundscapes. The article presents the soundscape characteristics of individual areas of Silesia Park.

2

The acoustic climate of spaces located under overpasses in the context of adapting them for outdoor public events – a pilot case study

Komarzyńska-Świeściak Elżbieta, Kozlowski Piotr

Budownictwo i Architektura

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2021

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Vol. 20, no 4

63--92

EN

Due to the current shortage of traditional public space because of its privatization, commercialization, and securitization, there is an urgent need to reclaim areas affected by motorized traffic in the urbanized areas. On the other hand, the process of adapting them for new purposes should be carefully carried out, addressing several issues, among them environmental acoustics. This study is meant to contribute to our understanding of acoustic conditions of a general model of the bridge underspace. Therefore, the aim of the research was to examine the existing acoustic climate by measuring noise levels and comparing them with equivalent acceptable noise levels for the expected type of space development and Noise Rating curves. In this research, a pilot case study approach was used, as measurements were taken for a chosen space located under an elevated road that represents certain criteria set by the researchers. The results allowed us to: (1) verify the relationship between the geometry of the bridge underspace and the noise levels, (2) assess the initial acoustic conditions in terms of possibilities of acoustic adaptation of the examined space for outdoor public events, and (3) formulate hypotheses and preliminary assumptions for the planned further and broader studies of the issues raised in this article. The presented results and their analysis show that it is possible to bring the acoustic conditions in the studied space to the state required for public or cultural meeting spaces. In comparison with earlier findings, the research undertaken appears to be pioneering and the results can be used as valuable input for further research on this topic.

3

Analysis of the Usefulness of Measurement on a Board at Ground Level for Assessing the Noise Level from a Wind Turbine

Wszołek Tadeusz, Pawlik Paweł, Mleczko Dominik, Chronowska Jagna

Archives of Acoustics

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2020

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Vol. 45, No. 1

165--175

EN

The specific working conditions of the wind turbine in strong wind cause a number of problems in the measurement of noise indicators used in its short and long-term assessment. The wind is a natural working environment of the turbine, but it also affects the measurement system, moreover, it can be a secondary source of other sounds that interfere with the measurement. One of the effective methods of eliminating the direct impact of wind on the measurement system is placing the microphone on the measurement board at ground level. However, the obtained result can not be directly compared with the admissible values, as it has to be converted to a result at a height of 4 m. The results of previous studies show that this relation depends, inter alia, on the speed and direction of the wind. The paper contains the results of measurements on the measurement board, according to EN 61400-11:2013, and at a height of 4 m above ground made simultaneously in three points around the 2 MW turbine at various instantaneous speeds and changing wind directions. Analysis of the impact of measuring point location on the measurement result of noise indicators and the occurrence of additional features affecting the relationship between the values measured on the board and at the height of 4 m, and especially the tonality, amplitude modulation and content of low frequency content, was made.

4

Monitoring hałasu środowiskowego

Żuchowski R., Nowoświat A., Dulak L.

Izolacje

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2016

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R. 21, nr 4

20--27

PL

W artykule przedstawiono zagadnienia związane z akustyką środowiskową. Omówiono stosowane oznaczenia i definicje, zagadnienia prawne oraz założenia przyjmowane podczas obliczania hałasu środowiskowego, w tym podczas tworzenia map akustycznych.

EN

The article presents certain environmental acoustics issues. It discusses the applied identifications and definitions, legal issues, and assumptions used for environmental noise calculations, including drafting of acoustic maps.

5

Analiza oddziaływań akustycznych i świetlnych z projektowanego osiedla domów jednorodzinnych

Szczepańska-Rosiak E., Żuchowski R.

Fizyka Budowli w Teorii i Praktyce

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2016

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T. 8, nr 4

29--36

PL

Zgodnie z obecnie obowiązującym prawem podczas wprowadzania inwestycji budowlanej do środowiska jej skala, zastosowane rozwiązania projektowe oraz technologia realizacji obiektu mogą podlegać ocenie środowiskowej. Artykuł przedstawia analizę prognozowanego oddziaływania hałasu i światła, jakie może się pojawić w trakcie codziennej eksploatacji budynków mieszkalnych na obszarze całego osiedla oraz na terenach z nim sąsiadujących. W tym celu wykorzystano dostępne narzędzia komputerowe przy pomocy, których opracowano model sytuacji dla projektowanego osiedla a na jego podstawie, przeprowadzono symulacje przedstawiające rozkład światła i pola akustycznego w sąsiedztwie analizowanego osiedla domów jednorodzinnych.

EN

Under current law, when entering a construction project to the environment, its scale and the applied design solutions and technology implementation shall be subject to peer review. This article presents a reference to the applicable acoustic requirements concerning the environment. The paper presents the acoustic analysis of the forecasted impact that may arise during the particular phases of construction works and after the completion of the project, during everyday exploitation of the buildings in the whole housing estate. The research part of the paper comprises the analysis of noise impact on the protected areas neighboring with the project in view of the scope and methods of the construction works carried out under the schedule. For this purpose, in the program Soundplan, model variants of the construction works were worked out as well as the target situation, where after the simulations of the distribution of the acoustic field in the vicinity of the project were carried out.

6

Evaluation of the effectiveness of screening with noise barriers with account to an edge noise reducer

Żuchowski R., Marchacz M.

Architecture Civil Engineering Environment

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2009

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Vol. 2, no. 3

49-56

EN

The paper presents results of the experimental testing compared to theoretical results obtained based on computational methods. Site investigation of the effectiveness of road noise barriers screening have been carried out for two situations, with and without an edge noise reducer, whereas theoretical calculations of the effectiveness have been based on a few computational models as well as SoundPLAN software. Results of experimental-theoretical testing obtained in this way allowed to evaluate the range of the theoretical methods use in the established geometrical conditions: source of sound – noise barier – observer. The paper presents evaluation of the effectiveness of noise barrier screening with the use of an edge noise reducer in the site investigation conditions as well as in numerical calculations. Obtained results of "in situ" screening effectiveness were compared with the results of theoretical calculations by means of a reducer simulation as a flat extension of tested noise barrier of height corresponding to the height of a reducer for calculations in the frequency function as well as cuboidal element fixed on the upper edge of the noise barrier in numerical calculations.

PL

W pracy przedstawiono wyniki badań doświadczalnych, które porównano z wynikami teoretycznymi otrzymanymi na podstawie metod obliczeniowych. Badania terenowe skuteczności ekranowania akustycznego ekranu drogowego wykonano dla dwóch sytuacji, bez i z uwzględnieniem krawędziowego reduktora hałasu, natomiast obliczenia teoretyczne skuteczności oparto na podstawie kilku modeli obliczeniowych i oprogramowania komputerowego SoundPLAN. Uzyskane w ten sposób wyniki badań doświadczalno-teoretycznych pozwoliły na ocenę zakresu stosowalności metod teoretycznych w ustalonych warunkach geometrycznych: źródło dźwięku – ekran – obserwator. W artykule przeprowadzono ocenę skuteczności ekranowania ekranu z zastosowaniem krawędziowego reduktora hałasu w warunkach badań terenowych i obliczeń numerycznych. Otrzymane wyniki badań efektywności ekranowania "in situ" porównano z wynikami obliczeń teoretycznych poprzez symulację reduktora jako przedłużenie płaskie badanego ekranu o wysokość odpowiadającą wysokości reduktora dla obliczeń w funkcji częstotliwości oraz jako obiekt prostopadłościenny zamontowany na górnej krawędzi ekranu w obliczeniach numerycznych.

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Complex noise indicator for noise mapping based on the EU working groups' and Polish results of the annoyance investigations

Kucharski R.

Archives of Acoustics

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2007

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Vol. 32, No. 2

293-302

EN

The Noise Directive 2002/49/EU includes obligations for noise mapping for agglomerations above 250 thousand citizens in the first step and later - above 100 thousand people. The noise map of the city consists of, at least, 4 layers of information. Each layer, in graphical form, represents different kinds of noise distribution, for traffic, railway, air and industrial noise. One can ask how to assess the complex exposure for all noises from all layers of the map? The proposition of the complex index evaluation is developed in the paper. At first, it was assumed that the basic indicator for complex description of the acoustic conditions is the sum of the weighted noise exposures connected with the LDWN level from different category of noise. The weights for the complex indicator were worked out on the basis of the results of the noise annoyance investigations, carried out by the European Working Group on health and socio-economic aspects, published in position papers (year 2002 and later). However, one can ask if the European relation between noise levels and noise annoyance is correct for Polish conditions? In the second part of the paper the results of the comparisons between EU's and Polish annoyance curves are presented. The curves were obtained as the correlation's product of the subjective assessments (query) and LDWN levels measurements and calculations. These investigations in Poland were carried out as a part of the annually project called "Noise Monitoring System" (coordinated by Chief Inspectorate of Environmental Protection). Their background results are characterized in the paper.