# Noise Annoyance in Physical Sciences: Perspective 2015-2024
## 3 Results
Based on Figure 4, it should be stated that, taking into account the subject area, the largest percentage of publications was recorded in Environmental Science--68 (60.71% of the total), Engineering--48 (42.86%), Energy--15 (13.39%), Earth and Planetary Sciences -9 (8.04%). At the same time, a decrease in interest in the discussed topics was noted in almost all of the selected categories. In Environmental Science, it was a decrease by two positions (5.71% compared to 2015-2019), Energy--one position (1.25% compared to 2015-2019), Earth and Planetary Sciences--three positions (50% compared to 2015-2019). An increase was noted only in the scope of publications concerning Engineering, i.e., 12 (66.67% compared to 2015-2019). The discussed results are presented in Figure 4.  
A similar trend, a decrease in interest in the selected categories, was noted in the Noise Source category as well. Comparing the number of all publications published in 2015-2019 to the number of publications published in 2020-2024, a decrease was noted from 86 publications to 83 (by 3.49% compared to 2015-2019). The analysis of the texts showed a decrease in the number of publications in the area of Road Transport from 32 to 25 publications (by 21.86% compared to 2015-2019) and Renewable Energy from 10 to 6 (i.e., by 40% compared to 2015-2019). The analysis of the texts showed a decrease in the number of publications in the area of Road Transport from 32 to 25 publications (by 21.86% compared to 2015-2019) and Renewable Energy from 10 to 6 (i.e., by 40% compared to 2015-2019). The results are presented in Figure 5.  
Figure 4: Number of publications in 2015–2019 and 2020–2024 in the subject areas. Figure 3: Number of publications in 2015–2019 and 2020–2024 in document type category. to 2015-2019). In other areas, an increase in the number of publications was noted: Air Transport by four (i.e., by 23.53% compared to 2015-2019), Rail Transport by one (16.67% compared to 2015-2019) Urban Noise by three (i.e., by 14.29% compared to 2015-2019). Taking into account the number of publications in individual areas, the most publications were recorded in Road Transport, i.e., 57 (50.89% of all publications in 2015-2024), Urban Noise--45 (40.18%), Air Transport--38 (33.93%), Renewable Energy--16 (14.29%), Rail Transport--13 (11.61%). Sound pressure measurements at various distances from the sound source have been reported in the literature [27], as well as reported public assessments on noise nuisance depending on the degree of exposure to the sound source [41]. It would be important to carry out experimental studies on the perceptibility of sounds with changes in their frequency and distance from the generator. Taking into account the range of possible types of sound generation by the indicated sources, it would be possible to determine the extent of their potential harmfulness. For example, by taking into account the degree of noise emissions generated by helicopter rotors and the range of harmful sound levels, the deployment of potential urban air transport can be planned [114]. The same problem should also be taken into account when planning traffic, railroads, or the deployment of wind turbines. The discussed results are presented in Figure 5.  
Considering the methodology of text preparation, it should be noted that the largest percentage of the examined publications was based on an experiment--73 (65.18% of all publications in the years 2015-2024). The second largest group of publications were articles based on a conceptual method, i.e., 68 (60.71%). Many publications used a survey--49 (43.75%), literature analysis--25 (22.32%), and case study--16 (14.29%). The discussed results are presented in Figure 6.  
From a cognitive point of view, the distribution of publications by individual author affiliations is also interesting. The statistical significance of changes in the distribution of publications in the 2015-2019 and 2020-2024 intervals was also checked.