The use of in-situ test method EN 1793-6 for measuring the airborne sound insulation of noise barriers

Bull, John Ivan; Watts, G R; Pearse, John

doi:10.1016/j.apacoust.2016.09.006

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Many of these approaches start by analysing the historical context and the physical and structural characteristics of the area under study. Furthermore, most of these methods incorporate regulatory aspects into evaluating the expanding site, encompassing acoustic, urban, and infrastructural regulations at the local, national, or international levels [5,6]. These studies often comprise a design phase implying the local community's and stakeholders' active involvement [5,7].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, most of these methods incorporate regulatory aspects into evaluating the expanding site, encompassing acoustic, urban, and infrastructural regulations at the local, national, or international levels [5,6]. These studies often comprise a design phase implying the local community's and stakeholders' active involvement [5,7]. Participatory tools such as focus groups, questionnaires, and sound walks facilitate this engagement [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Acoustic Requalification of an Urban Evolving Site and Design of a Noise Barrier: A Case Study at the Bologna Engineering School

Fusaro,

Garai

2024

Applied Sciences

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The increase in new infrastructure development has raised closer attention to the environmental noise of new expansion areas. This study investigates the urban evolution of Terracini Street’s surrounding area in the Navile district, Bologna, Italy. In the last 20 years, this area has undergone various transformations, from a suburban industrial area to a new university and residential one. First, the morphologic and infrastructural characteristics of the site are established. Then, the existing regulations (acoustic, urban, and infrastructural regulations, whether local or national) are evaluated. Next, the results of environmental noise measurements are presented. Since a heavily trafficked infrastructure is very close to the occupied public area, noise limits are severely exceeded. A noise mitigation design stage follows, focusing on a novel noise barrier design. Specifically, particular attention is paid to the visual and ecological impact of the noise barrier on the area’s landscape, which must be representative of the new location of the School of Engineering. The sonic crystal technique is exploited to implement an effective noise barrier (average insertion loss of 10 dB(A) in the 200 Hz–1 kHz range), allowing air ventilation and visual transparency. This case study could further evolve using other acoustic metamaterial techniques or in different application sites.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acoustic Requalification of an Urban Evolving Site and Design of a Noise Barrier: A Case Study at the Bologna Engineering School

Fusaro,

Garai

2024

Applied Sciences

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“…With the development of modernization, noise has become a serious environmental problem affecting human beings, animals, and plants. Relevant research shows that road traffic noise is one of the main noise sources [27]. Low noise pavements are actually used as the best solution in order to comply with mitigations and action plans demands [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Study on the Performances of Waste Crumb Rubber Modified Asphalt Mixture with Eco-Friendly Diatomite and Basalt Fiber

et al. 2019

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A sustainable and environmentally friendly society is developing rapidly, in which pavement engineering is an essential part. Therefore, more attention has been paid toward waste utilization and urban noise pollution in road construction. The object of this study was not only to investigate the mix proportion of waste crumb modified asphalt mixtures with diatomite and basalt fiber but also to evaluate the comprehensive performances including sound and vibration absorption of modified asphalt mixtures. Firstly, the mix proportion scheme was designed based on Marshall indices and sound and vibration absorption properties according to the orthogonal experimental method. Considering the specification requirements, as well as better performances, the optimal mix proportion was determined as follows: diatomite content at 7.5%, basalt fiber content at 0.3%, and asphalt-aggregate ratio at 5.5%. The range and variance analysis results indicated that asphalt-aggregate ratio has the most significant influence on volumetric parameters, diatomite has the most significant influence on sound absorption, and basalt fiber has the most significant influence on vibration reduction. Furthermore, the conventional pavement performances and sustainable sound and vibration absorption performances of modified asphalt mixtures were also analyzed. The results showed that the performances of modified asphalt mixtures were improved to different extents compared to the base asphalt mixture. This may be attributed to the microporous structure property of diatomite and the spatial network structure formed by basalt fibers. The pavement as well as sound and vibration absorption performances of the waste crumb modified asphalt mixture with diatomite and basalt fiber would be a good guidance for asphalt pavement design.

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“…Many past studies have focused on optimizing the design and manufacture of quieter automobiles and tires [8,9], effectively constructing sound barriers [10,11], planting noise absorbent tree belts on both sides of a highway [12], and paving low-noise or porous pavement [13,14]. Nevertheless, it must be noted that the reduction in the amplitude from tire/pavement noise caused by the improved design and manufacture of a car or its tire has begun exhibiting diminishing returns.…”

Section: Introductionmentioning

confidence: 99%

Study on the Influential Factors of Noise Characteristics in Dense‐Graded Asphalt Mixtures and Field Asphalt Pavements

Guo

Xie

et al. 2018

Shock and Vibration

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Determining the influential factors of noise characteristics in dense-graded asphalt mixtures and field asphalt pavement is important in constructing highways that are both low noise and environmentally friendly. In this study, the effects of nominal maximum aggregate size, asphalt binder type, air void percentage, and the service life of pavement on the noise absorption characteristics of asphalt mixtures were first investigated in laboratory. Thereafter, tire/pavement noise measurements were conducted on different types of dense-graded asphalt pavements. The effects of the service lives of the pavements, the types of the pavements, driving speeds, and test temperatures on the noise levels of the pavements were also studied. The Zwicker method is used to calculate psychoacoustic parameters on the tire/pavement noise spectrum. The laboratory results indicate that reducing the nominal maximum aggregate size, using rubber asphalt, and increasing air void percentage as well as surface texture depth improve the sound absorption performance of asphalt mixtures. The field measurements show that laying down asphalt pavements with a shorter service life or larger texture depth, using rubber asphalt, reducing traffic speed, and increasing air temperature can reduce noise.

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The use of in-situ test method EN 1793-6 for measuring the airborne sound insulation of noise barriers

Abstract: The use of in-situ test method EN 1793-6 for measuring the airborne sound insulation of noise 1

Cited by 5 publications

References 6 publications

Acoustic Requalification of an Urban Evolving Site and Design of a Noise Barrier: A Case Study at the Bologna Engineering School

Acoustic Requalification of an Urban Evolving Site and Design of a Noise Barrier: A Case Study at the Bologna Engineering School

Study on the Performances of Waste Crumb Rubber Modified Asphalt Mixture with Eco-Friendly Diatomite and Basalt Fiber

Study on the Influential Factors of Noise Characteristics in Dense‐Graded Asphalt Mixtures and Field Asphalt Pavements

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