Wyniki wyszukiwania - BazTech

1

Subiektywna ocena dźwięku w pomieszczeniach przeznaczonych do wypoczynku pracowników. Wyniki badań własnych, przeprowadzonych wśród użytkowników tych pomieszczeń – osób pracujących w hałasie

Miterska Magdalena, Kompała Janusz

Bezpieczeństwo Pracy : nauka i praktyka

|

2024

|

nr 2

25-29

PL

Artykuł przedstawia wyniki badań ankietowych dotyczące subiektywnej oceny dźwięku w pomieszczeniach przeznaczonych do wypoczynku pracowników w czasie przerw. Badania te przeprowadzono wśród osób wykonujących pracę na stanowiskach, na których występuje hałas. Subiektywna ocena jest nie mniej ważna niż ocena dokonywana na podstawie wyników pomiarów parametrów hałasu (zwłaszcza że nie zawsze się z nimi pokrywa) i pomaga zaprojektować pomieszczenia w sposób zapewniający lepsze postrzeganie krajobrazu dźwiękowego (określanego też mianem klimatu akustycznego) w miejscu pracy. Odbywa się to poprzez zmianę dźwięków w pomieszczeniach (a nie przez redukcję hałasu) – tak by uzyskać bardziej przyjazny klimat akustyczny, który wpłynie na poprawę samopoczucia osób pracujących w hałasie.

EN

The article presents the results of questionnaire research on the subjective assessment of sound in break rooms during work breaks, for employees working at workplaces with noise. The article shows that sound pressure measurements are not the only factor influencing the perception of the sound environment in the workplace. The subjective assessment of the sound environment in break rooms is equally important. A subjective assessment, which that does not always match the objective assessment based on results of noise parameters measurements, can help to design the soundscape of break rooms, contributing to an improved perception of the sound environment in the workplace. The improvement of the acoustic environment takes place not by reducing noise, but by changing the sounds in the break rooms. Changing the soundscape to a more friendly one, improves the well-being of employees working in workplaces with noise.

2

Comparison analysis of noise generated by wind turbines with the other noise source in outdoor environment

Staniek Andrzej, Kompała Janusz, Bramorska Alicja, Bartmański Cezary

Vibrations in Physical Systems

|

2023

|

Vol. 34, nr 1

art. no. 2023108

EN

The paper presents a comparison analysis of the noise generated by wind turbines and the one generated by a ventilation shaft of a working coal mine. The aim of the research was to compare the frequency and amplitude distribution of those sources, especially in the infra range. The ultimate aim it is evaluate possible environmental impact on human annoyance or severity. During the research noise signals were recorded utilizing low frequency microphones, shielded by windscreens. Microphones were localized at the heights of 0.0 m, 1.5 m (approximate location of a human ear in a standing position) and 4 m. Additionally, a measurement position of a microphone in relation to the ground surface was observed. Measurements at ground level were performed according to the standard PN-EN 61400-11:2013-07 and in vertical position, where the microphone was mounted "upside down" with the grid flush with the board. The possible influence of wind speed was also monitored. The results of the measurements are discussed.

3

Assessment of personnel exposure to unfavourable acoustic environments in office space at concentration-demanding posts

Miterska Magdalena, Kompała Janusz

Vibrations in Physical Systems

|

2023

|

Vol. 34, nr 1

art. no. 2023111

EN

This paper presents the results of soundscape studies in office space used for work demanding high concentration. It demonstrates that acoustic pressure measurements are not the only factor influencing soundscape perception. The subjective assessment of an office space soundscape is of equal importance to objective acoustic measurements. A subjective assessment does not always overlap with measured values, while a negative soundscape contributes to diminished concentration, decreased work efficiency and more frequent mistakes among personnel. An acoustic environment can be improved not exactly by reducing noise, but rather by changing the ambient sounds to such that are more beneficial for maintaining concentration and focus.

4

Różnorodność krajobrazu dźwiękowego Parku Śląskiego

Miterska Magdalena, Kompała Janusz

Bezpieczeństwo Pracy : nauka i praktyka

|

2023

|

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.

5

Soundscapes of Urban Parks in Cities with Populations of Over 100,000 in the Silesian Voivodeship

Miterska Magdalena, Kompała Janusz

Archives of Acoustics

|

2021

|

Vol. 46, No. 1

147--154

EN

The article presents the results of soundscape assessments conducted in urban parks in the Silesian Voivodeship. The Silesian Voivodeship is characterised by a high degree of industrialisation and the greatest population density in Poland. The studies were conducted in the urban parks of all the cities in the voivodeship with populations of over 100,000 citizens. This selection was determined based on acoustic maps that are prepared for cities with populations of over 100,000 citizens as required by law, and on the fact that the role of urban parks is frequently marginalised in the context of city life. The goal of the studies was to define an objective acoustic appeal assessment method for urban parks in city centres. Measurements were carried out in 34 parks located in the centres of 12 cities. A-weighted sound levels LAeq were determined for 107 measuring points in urban parks and the streets adjacent to them. Differences in the A-weighted sound levels LAeq were presented for each studied park and the adjacent streets. Minimum and maximum sound values were subsequently determined for each measuring point. Significant differences in the minimum and maximum sound values in given locations were found despite minor differences in LAeq values. It was also discovered that though parks may often exhibit high A-weighted sound levels LAeq, there are other factors that influence the appeal of park soundscapes.