Identification of factors affecting noise levels by using data mining and design of experiments analysis techniques: A novel experimental approach

Abstract

The sounds that are high enough, which negatively affect our understanding, are called noise. Although students are one of the main sources of noise at schools, noise adversely affects students’ success. Schools’ acoustics and the time when the noise measurement is made are usually considered to be other reasons for noise. In this study, noise measurements are collected in several of a metropolitan city’s primary and secondary schools, and factors that affect noise significantly are investigated using 23 full factorial experimental designs. In addition, school teachers’ perception of noise is analyzed by the Apriori algorithm. Results indicate that noise values exceed the limit values set by the WHO and noise regulations currently in effect in Turkey. Also, the schools with no acoustic insulation were noisier than those with minimum insulation. From the Apriori analysis, it is concluded that female teachers are more sensitive than male teachers about noise annoyance.

Analysis of Noise pollution level in Enugu campus, of the University of Nigeria

“…Therefore, university of Nigeria can describe as “noisy.” The only location that is not noisy is the area around Administrative buildings. The result is similar to that of Orbak et al (2022) that noise level in primary and secondary schools in Metropolitan city in Turkey exceed the limit set by the WHO and noise regulation in the country. In the sane vain, the study finding also corroborated with de Souza et al (2020) in which noise levels at all measurement points in a university campus in Brazil exceeded the recommended limits, which is not suitable for an education institution.…”

“…This can be attributed to reduction in traffic movement during the period (Basu et al, 2021). The result also contradicted the study by Orbak et al (2022) that students are the main sources of noise at school and their success is adversely affected by noise pollution. In summary the major sources of noise in the University campus is exogenous.…”

“…Noise is the sound that is high enough, that adversely affects our level of tolerant (Orbak et al, 2022). Granting that noise is a global issue, there are several studies in this subject.…”

Identification of localized defects and fault size estimation of taper roller bearing (NBC_30205) with signal processing using the Shannon entropy method in MATLAB for automobile industries applications

“…As per the data presented in Table 2 , the width calculation was monitored at different intervals of time, for initial 0 h the crack width was 1.80 mm and after 180 h of operation at a perfectly aligned level, it was found 1.916 mm, and the crack width was significantly increased by 0.116 mm. The first set of experiments was performed for around 250 h, and finally, the crack width was increased by 0.813 mm on a further increase of misalignment, the crack width was again monitored at different running hours and after 170 h, it was found 2.24 mm, and the crack width was significantly increased by 0.44 mm [ 73 , 74 , 75 ]. The second set of experiments was conducted for 200 h, and correspondingly crack width was increased by 1.795 mm.…”

Assessing Traffic Noise and Its Impact on High-Rise Apartment Buildings Adjacent to an Urban Expressway: A Case Study in Chengdu, China

“…As previously discussed, recent research has shown that traffic noise has a significant impact on daily life comfort and can affect both the mental and physical health of individuals. Consequently, a considerable amount of research has been conducted to assess noise levels, inhabitants' perception, and measures for soundproofing and noise reduction in various settings, such as wind farms [18,19], schools [20], hypermarket [21], university community [22], metro trains and stations [23][24][25], airports [26,27], office buildings [28], and gyms [29]. Regarding the impact of traffic noise, recent studies have shed light on the various negative effects it has on residents' health and well-being, especially in the context of urban expressways.…”