Samuele Schiavoni, G. Baldinelli, A. Presciutti, F. D’Alessandro
Abstract The paper presents an original methodology for the identification of intervention priorities through a tailored priority index IP in areas that are highly-exposed to port noise. The methodology is applied to a case study developed in the framework of the European project ANCHOR, acronym of Advanced Noise Control strategies in HarbOuR, funded as part of the announcement Life 2017. In detail, the paper discusses the results of its application in the assessment of the evolution of port noise impacts in the city of Melilla, Spain. The methodology has been applied considering the port with or without the realization of an expansion project on three different time periods; differences between standard and the summer traffic peak season have been considered. Finally, the paper evaluates the realization of cold ironing in the most impacting port area, the passenger (Ro-Pax) terminal. The results of the analyses demonstrate how the measure is a key action to mitigate noise in port areas. The methodology is not limited to the identification of city areas that needs to be protected; it also aims to identify port areas where anti-noise actions would produce the greatest effect. The index also allows to build a ranking to understand where anti-noise actions are more useful and urgent.
{"title":"Acoustic mitigation of noise in ports: an original methodology for the identification of intervention priorities","authors":"Samuele Schiavoni, G. Baldinelli, A. Presciutti, F. D’Alessandro","doi":"10.1515/noise-2022-0159","DOIUrl":"https://doi.org/10.1515/noise-2022-0159","url":null,"abstract":"Abstract The paper presents an original methodology for the identification of intervention priorities through a tailored priority index IP in areas that are highly-exposed to port noise. The methodology is applied to a case study developed in the framework of the European project ANCHOR, acronym of Advanced Noise Control strategies in HarbOuR, funded as part of the announcement Life 2017. In detail, the paper discusses the results of its application in the assessment of the evolution of port noise impacts in the city of Melilla, Spain. The methodology has been applied considering the port with or without the realization of an expansion project on three different time periods; differences between standard and the summer traffic peak season have been considered. Finally, the paper evaluates the realization of cold ironing in the most impacting port area, the passenger (Ro-Pax) terminal. The results of the analyses demonstrate how the measure is a key action to mitigate noise in port areas. The methodology is not limited to the identification of city areas that needs to be protected; it also aims to identify port areas where anti-noise actions would produce the greatest effect. The index also allows to build a ranking to understand where anti-noise actions are more useful and urgent.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"211 - 226"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49134740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Campos, Manuel José dos Santos Silva, João Manuel Gonçalves de Sousa Oliveira
Abstract The noise received from an aircraft is modified by atmospheric attenuation and reflections from the ground. The interference of direct and reflected waves is simplest for a flat ground, whereas multiple reflections can occur for rough ground or mountainous surroundings. The ground characteristics, like reflection and absorption factors or impedance, also affect the received sound. All these effects have to be considered with respect to the path of the aircraft. Most of the literature about ground effects on aircraft noise considers a point source over a flat ground, using the method of images, that does not extend readily to rough ground. The effect of rough ground on aircraft noise can be modelled by: (i) identification of reflection points (there may be several points); (ii) use of a complex reflection coefficient (with amplitude and phase changes) at each reflection point; (iii) adding all reflected waves within line-of-sight of the receiver, that is not blocked by terrain (there is no blockage for a flat ground).
{"title":"On the effects of rough ground and atmospheric absorption on aircraft noise","authors":"L. Campos, Manuel José dos Santos Silva, João Manuel Gonçalves de Sousa Oliveira","doi":"10.1515/noise-2022-0003","DOIUrl":"https://doi.org/10.1515/noise-2022-0003","url":null,"abstract":"Abstract The noise received from an aircraft is modified by atmospheric attenuation and reflections from the ground. The interference of direct and reflected waves is simplest for a flat ground, whereas multiple reflections can occur for rough ground or mountainous surroundings. The ground characteristics, like reflection and absorption factors or impedance, also affect the received sound. All these effects have to be considered with respect to the path of the aircraft. Most of the literature about ground effects on aircraft noise considers a point source over a flat ground, using the method of images, that does not extend readily to rough ground. The effect of rough ground on aircraft noise can be modelled by: (i) identification of reflection points (there may be several points); (ii) use of a complex reflection coefficient (with amplitude and phase changes) at each reflection point; (iii) adding all reflected waves within line-of-sight of the receiver, that is not blocked by terrain (there is no blockage for a flat ground).","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"23 - 47"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43258821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucia Busa, M. Goretti, C. Guattari, Paola Pulella
Abstract Schools in urban areas are often located in areas with high traffic and noise pollution that affect the overall and sonic quality of the external spaces. Due to this, teachers and students are exposed to high noise levels, this condition could have an impact on the perceptive-cognitive and neurobehavioral aspects, determining auditory and extra-auditory effects from exposure to noise. The BRiC - ID14 project, funded by INAIL, investigates the extra-auditory effects of noise exposure on primary and secondary school teachers and students. In this study, the assessment of sonic, acoustic and overall environment of the external area of three kindergartens, three primary schools and three secondary ones located in Rome, Florence and Perugia was carried out. The external areas were investigated and discussed by analyzing the acoustic, psychoacoustic and subjective data collected. The results obtained by the acoustic measurements campaign under non-occupied conditions were compared with the soundscape measurements outcomes, under occupied conditions. The two measurements campaign revealed that the obtained values are comparable in terms of objective and subjective responses. The differences observed in the perception of the sonic and overall environment are ascribable to different noise sources located close to the schools.
{"title":"Extra-auditory effects of noise exposure in Italian schools: noise levels in external areas","authors":"Lucia Busa, M. Goretti, C. Guattari, Paola Pulella","doi":"10.1515/noise-2022-0160","DOIUrl":"https://doi.org/10.1515/noise-2022-0160","url":null,"abstract":"Abstract Schools in urban areas are often located in areas with high traffic and noise pollution that affect the overall and sonic quality of the external spaces. Due to this, teachers and students are exposed to high noise levels, this condition could have an impact on the perceptive-cognitive and neurobehavioral aspects, determining auditory and extra-auditory effects from exposure to noise. The BRiC - ID14 project, funded by INAIL, investigates the extra-auditory effects of noise exposure on primary and secondary school teachers and students. In this study, the assessment of sonic, acoustic and overall environment of the external area of three kindergartens, three primary schools and three secondary ones located in Rome, Florence and Perugia was carried out. The external areas were investigated and discussed by analyzing the acoustic, psychoacoustic and subjective data collected. The results obtained by the acoustic measurements campaign under non-occupied conditions were compared with the soundscape measurements outcomes, under occupied conditions. The two measurements campaign revealed that the obtained values are comparable in terms of objective and subjective responses. The differences observed in the perception of the sonic and overall environment are ascribable to different noise sources located close to the schools.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"227 - 233"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47263156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Increasing levels of noise pollution in urban environments are a primary cause of various physical and psychological health issues. There is an urgent requirement to manage environmental noise by assessing the current levels of noise pollution by gathering real-world data and building a fine-granularity real-time noise map. Traditionally, simulation-based, small-scale sensor-network-based, and participatory sensing-based approaches have been used to estimate noise levels in urban areas. These techniques are inadequate to gauge the prevalence of noise pollution in urban areas and have been shown to leak private user data. This paper proposes a novel federated learning-based urban noise mapping system, FL-NoiseMap, that significantly enhances the privacy of participating users without adversely affecting the application performance. We list several state-of-the-art urban noise monitoring systems that can be seamlessly ported to the federated learning-based paradigm and show that the existing privacy-preserving approaches can be used as an add-on to enhance participants’ privacy. Moreover, we design an “m-hop” application model modification approach for privacy preservation, unique to FL-NoiseMap. We also describe techniques to maintain data reliability for the proposed application. Numerical experiments on simulated datasets showcase the superiority of the proposed scheme in terms of users’ privacy preservation and noise map reliability. The proposed scheme achieves the lowest average normalized root mean square error in the range of 4% to 7% as the number of participants varies between 500 and 5000 while providing maximum coverage of over 95% among various competing algorithms. The proposed malicious contribution removal framework can decrease the average normalizedroot mean square error by more than 50% for simulations having up to 20% malicious users.
{"title":"FL-NoiseMap: A Federated Learning-based privacy-preserving Urban Noise-Pollution Measurement System","authors":"Dheeraj Kumar","doi":"10.1515/noise-2022-0153","DOIUrl":"https://doi.org/10.1515/noise-2022-0153","url":null,"abstract":"Abstract Increasing levels of noise pollution in urban environments are a primary cause of various physical and psychological health issues. There is an urgent requirement to manage environmental noise by assessing the current levels of noise pollution by gathering real-world data and building a fine-granularity real-time noise map. Traditionally, simulation-based, small-scale sensor-network-based, and participatory sensing-based approaches have been used to estimate noise levels in urban areas. These techniques are inadequate to gauge the prevalence of noise pollution in urban areas and have been shown to leak private user data. This paper proposes a novel federated learning-based urban noise mapping system, FL-NoiseMap, that significantly enhances the privacy of participating users without adversely affecting the application performance. We list several state-of-the-art urban noise monitoring systems that can be seamlessly ported to the federated learning-based paradigm and show that the existing privacy-preserving approaches can be used as an add-on to enhance participants’ privacy. Moreover, we design an “m-hop” application model modification approach for privacy preservation, unique to FL-NoiseMap. We also describe techniques to maintain data reliability for the proposed application. Numerical experiments on simulated datasets showcase the superiority of the proposed scheme in terms of users’ privacy preservation and noise map reliability. The proposed scheme achieves the lowest average normalized root mean square error in the range of 4% to 7% as the number of participants varies between 500 and 5000 while providing maximum coverage of over 95% among various competing algorithms. The proposed malicious contribution removal framework can decrease the average normalizedroot mean square error by more than 50% for simulations having up to 20% malicious users.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"128 - 145"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43531421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Maffei, M. Masullo, Chiara Bartalucci, Ar Melloni, Raffaella Bellomini
Abstract Due to the difficulty of accessing quiet urban areas as defined by the EU Directive 2002/49/EC and of designing new ones, especially in the historical centers, it becomes more and more important to recognize pockets of quiet which can provide visitors with time for their physical and mental restoration. To this aim, an investigation methodology has been developed in previous studies conducted in Naples (Italy), Istanbul (Turkey) and Murcia (Spain) focused on finding and characterization of alternative quiet spaces which could offer opportunities to rest from the surrounding noise, which highlighted the role of non-auditory aspects on the restorativeness of urban spaces, such as green and water elements, or of historic and cultural value. This methodology which includes objective and subjective assessment has been used to characterize and illustrate the potentialities of the existing and potential spaces for restoration within the ancient center of the city of Florence (Italy). Concerning acoustic measurements, the “quietness” is confirmed by the fact that the differences between the sound levels (LAeq) of the surrounding areas and those within selected sites is greater than 9 dB; while the outcomes of the survey confirm the expectations especially concerning the importance and relevance, the cultural value, the historical-artistic elements, the perceived sense of being away and the distinction with the external acoustic environment.
{"title":"Pockets of quiet characterization in the historical center of Florence (Italy)","authors":"L. Maffei, M. Masullo, Chiara Bartalucci, Ar Melloni, Raffaella Bellomini","doi":"10.1515/noise-2022-0162","DOIUrl":"https://doi.org/10.1515/noise-2022-0162","url":null,"abstract":"Abstract Due to the difficulty of accessing quiet urban areas as defined by the EU Directive 2002/49/EC and of designing new ones, especially in the historical centers, it becomes more and more important to recognize pockets of quiet which can provide visitors with time for their physical and mental restoration. To this aim, an investigation methodology has been developed in previous studies conducted in Naples (Italy), Istanbul (Turkey) and Murcia (Spain) focused on finding and characterization of alternative quiet spaces which could offer opportunities to rest from the surrounding noise, which highlighted the role of non-auditory aspects on the restorativeness of urban spaces, such as green and water elements, or of historic and cultural value. This methodology which includes objective and subjective assessment has been used to characterize and illustrate the potentialities of the existing and potential spaces for restoration within the ancient center of the city of Florence (Italy). Concerning acoustic measurements, the “quietness” is confirmed by the fact that the differences between the sound levels (LAeq) of the surrounding areas and those within selected sites is greater than 9 dB; while the outcomes of the survey confirm the expectations especially concerning the importance and relevance, the cultural value, the historical-artistic elements, the perceived sense of being away and the distinction with the external acoustic environment.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"249 - 268"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41979139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manish P. Manohare, E. Rajasekar, M. Parida, Sunali Vij
Abstract This paper presents a bibliometric and critical review of auditory and non-auditory health impacts due to road traffic noise exposure. The paper discusses the general trends of studies conducted in the research domain using the bibliometric network approach. These networks are based on citation, bibliographic coupling, and co-authorship relationships. Further, a critical review is conducted to summarise the auditory and non-auditory impacts due to traffic noise exposure. Auditory health impact issues such as noise-induced hearing loss (NIHL) and tinnitus are presented. Non-auditory impacts are categorised as physiology and performance-related impacts. Physiology related health impact includes a review of cardiovascular and sleep disturbance issues due to noise. Performance-related health impact includes annoyance and cognitive impairment issues. This paper discusses the severity level, different exposure-response relationships, techniques, and empirical models developed to assess the magnitude of these health impacts. Subjective and laboratory assessment techniques used to analyse the health impact through various modeling and statistical approaches are considered. Additionally, a scenario analysis of health impact due to heterogeneous transportation is performed. An assessment is done to find the applicability of health risk prediction models in heterogeneous traffic conditions.
{"title":"Bibliometric analysis and review of auditory and non-auditory health impact due to road traffic noise exposure","authors":"Manish P. Manohare, E. Rajasekar, M. Parida, Sunali Vij","doi":"10.1515/noise-2022-0005","DOIUrl":"https://doi.org/10.1515/noise-2022-0005","url":null,"abstract":"Abstract This paper presents a bibliometric and critical review of auditory and non-auditory health impacts due to road traffic noise exposure. The paper discusses the general trends of studies conducted in the research domain using the bibliometric network approach. These networks are based on citation, bibliographic coupling, and co-authorship relationships. Further, a critical review is conducted to summarise the auditory and non-auditory impacts due to traffic noise exposure. Auditory health impact issues such as noise-induced hearing loss (NIHL) and tinnitus are presented. Non-auditory impacts are categorised as physiology and performance-related impacts. Physiology related health impact includes a review of cardiovascular and sleep disturbance issues due to noise. Performance-related health impact includes annoyance and cognitive impairment issues. This paper discusses the severity level, different exposure-response relationships, techniques, and empirical models developed to assess the magnitude of these health impacts. Subjective and laboratory assessment techniques used to analyse the health impact through various modeling and statistical approaches are considered. Additionally, a scenario analysis of health impact due to heterogeneous transportation is performed. An assessment is done to find the applicability of health risk prediction models in heterogeneous traffic conditions.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"67 - 88"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42826808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Teresa J. Ryan, Andrea Vecchiotti, Jeff Foeller, Faith A. Cobb, J. Vignola, D. Turo
Abstract The aim of the paper is to describe a portable, modular, and scaleable system for measuring concurrent acoustic transmission loss and atmospheric characteristics. This system has been developed specifically to inform an effort to improve the ability to implement high fidelity numerical predictions of acoustic transmission loss, particularly in acoustically complex outdoor ranges, such as those that occur in coastal areas. Such a system has broad possible applicability in many outdoor atmospheric acoustic monitoring scenarios.
{"title":"Synchronized acoustic and atmospheric measurement system for characterization of atmospheric sound propagation","authors":"Teresa J. Ryan, Andrea Vecchiotti, Jeff Foeller, Faith A. Cobb, J. Vignola, D. Turo","doi":"10.1515/noise-2022-0008","DOIUrl":"https://doi.org/10.1515/noise-2022-0008","url":null,"abstract":"Abstract The aim of the paper is to describe a portable, modular, and scaleable system for measuring concurrent acoustic transmission loss and atmospheric characteristics. This system has been developed specifically to inform an effort to improve the ability to implement high fidelity numerical predictions of acoustic transmission loss, particularly in acoustically complex outdoor ranges, such as those that occur in coastal areas. Such a system has broad possible applicability in many outdoor atmospheric acoustic monitoring scenarios.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"109 - 112"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43138527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The development of subways in cities has provided great comfort to the citizens, but it has brought adverse effects to the residents of the buildings adjacent to the subway lines. The main effects are Structure Borne Noise (SBN) and Structure Borne Vibration (SBV), which are identified as environmental challenges. In this research, the extent and seriousness of SBV and SBN annoyances to people were investigated. This is made in two steps; first a thorough field test was made to evaluate the level of train-induced noise and vibration; then, a comprehensive investigation was made on the level of people annoyance from train-induced vibration and noise, using results obtained from interviews and questionnaires. The results obtained indicate that health concerns, economic losses, building damages and social harms were the most important factors, which cause annoyance of the citizens. These annoyances caused citizens to take their complaints to judiciary system in the world. In the second part of this research, the effectiveness and sufficiency of the current laws and legislation to protect the citizen against SBV/SBN annoyance are evaluated. The results indicate that there are limitations in the current laws in regard to crime determination, criminal identification, estimation of damages to citizens, citizen rights regarding the annoyance caused by SBV/SBN. Also, there is a lack of legal awareness among the citizens who do not know how to get their legal rights. The results of this research showed that the judicial bodies should improve and extend the current laws and make more low-enforcement to protect people against the growing problem of SBV/SBN. Also, there is a need to make people more familiar with their civil rights in regard to SBN and SBV.
{"title":"Legal consequences of train-induced structure borne noise and vibration in residential buildings","authors":"M. Vasheghani, J. Sadeghi, A. Khajehdezfuly","doi":"10.1515/noise-2022-0156","DOIUrl":"https://doi.org/10.1515/noise-2022-0156","url":null,"abstract":"Abstract The development of subways in cities has provided great comfort to the citizens, but it has brought adverse effects to the residents of the buildings adjacent to the subway lines. The main effects are Structure Borne Noise (SBN) and Structure Borne Vibration (SBV), which are identified as environmental challenges. In this research, the extent and seriousness of SBV and SBN annoyances to people were investigated. This is made in two steps; first a thorough field test was made to evaluate the level of train-induced noise and vibration; then, a comprehensive investigation was made on the level of people annoyance from train-induced vibration and noise, using results obtained from interviews and questionnaires. The results obtained indicate that health concerns, economic losses, building damages and social harms were the most important factors, which cause annoyance of the citizens. These annoyances caused citizens to take their complaints to judiciary system in the world. In the second part of this research, the effectiveness and sufficiency of the current laws and legislation to protect the citizen against SBV/SBN annoyance are evaluated. The results indicate that there are limitations in the current laws in regard to crime determination, criminal identification, estimation of damages to citizens, citizen rights regarding the annoyance caused by SBV/SBN. Also, there is a lack of legal awareness among the citizens who do not know how to get their legal rights. The results of this research showed that the judicial bodies should improve and extend the current laws and make more low-enforcement to protect people against the growing problem of SBV/SBN. Also, there is a need to make people more familiar with their civil rights in regard to SBN and SBV.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"170 - 188"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45923990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The paper introduces a framework for comprehensive simulation workflow of the built environment using the Pachyderm Acoustics plugin inside the Grasshopper 3D interface. It aims to model the shared relationship between residential buildings and hardscape. The findings indicate different levels of absorption and scattering coefficient in reference to the hardscape specifications during the A-weighted SPL measurements and varying intensities of sound power energy source wave emissions. The author evaluated and simulated a seven-zoned district using two hardscape materials’ specifications. Results indicate that medium sound power intensity has the greatest impact on noise reduction, with a value in the range of 1.5 dB(A) to 5.9 dB(A), the lowest power is 1.3 dB(A) to 3.2 dB(A) and the highest power is 1 dB(A) to 3.5 dB(A). Additionally, the shielding effect occurring between buildings aids in noise reduction due to the multitude and long paths of sound rays that can mitigate the embodied energy.
{"title":"Integrating a parametric tool in design process to improve the acoustic behavior of the asphalt finishing materials","authors":"T. M. Kamel","doi":"10.1515/noise-2022-0157","DOIUrl":"https://doi.org/10.1515/noise-2022-0157","url":null,"abstract":"Abstract The paper introduces a framework for comprehensive simulation workflow of the built environment using the Pachyderm Acoustics plugin inside the Grasshopper 3D interface. It aims to model the shared relationship between residential buildings and hardscape. The findings indicate different levels of absorption and scattering coefficient in reference to the hardscape specifications during the A-weighted SPL measurements and varying intensities of sound power energy source wave emissions. The author evaluated and simulated a seven-zoned district using two hardscape materials’ specifications. Results indicate that medium sound power intensity has the greatest impact on noise reduction, with a value in the range of 1.5 dB(A) to 5.9 dB(A), the lowest power is 1.3 dB(A) to 3.2 dB(A) and the highest power is 1 dB(A) to 3.5 dB(A). Additionally, the shielding effect occurring between buildings aids in noise reduction due to the multitude and long paths of sound rays that can mitigate the embodied energy.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"157 - 169"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48061467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Jasim, M. Rudiansyah, Ongdash Ainur Ongdashkyzy, T. Taban, S. Chupradit, A. H. Iswanto, Mustafa K. Suhayb, Khaldoon T. Falih, Najim Z. Alshahrani, Yasser Fakri Mustafa
Abstract One of the adverse effects of industrialization is noise pollution, which disturbs the mental health and tranquility of urban residents and is the source of numerous social tensions. Twenty stations in the central areas of Almaty with varying uses during the morning, afternoon, and evening rush hours were measured for this study. The objectives of this paper include determining sound indices, identifying potential sound sources, and calculating the relative contribution of each to the overall urban noise level. Additionally, 400 questionnaires were distributed to individuals to assess noise pollution’s effects on individuals. The average maximum value of TNI (Traffic Noise Index) in residential and commercial use is 85.4 dB(A), and the maximum value of Leq (Equivalent continuous sound level) in commercial use is 86 dB(A). In addition, 50 city bus drivers were examined to determine the impact of noise in this environment. The results revealed that as Leq increases, the number of unsafe acts increases. The questionnaires revealed that people are significantly more dissatisfied with noise pollution at stations with higher sound levels.
{"title":"Determining the parameters of noise pollution in the central area of the Almaty city in Kazakhstan","authors":"S. Jasim, M. Rudiansyah, Ongdash Ainur Ongdashkyzy, T. Taban, S. Chupradit, A. H. Iswanto, Mustafa K. Suhayb, Khaldoon T. Falih, Najim Z. Alshahrani, Yasser Fakri Mustafa","doi":"10.1515/noise-2022-0152","DOIUrl":"https://doi.org/10.1515/noise-2022-0152","url":null,"abstract":"Abstract One of the adverse effects of industrialization is noise pollution, which disturbs the mental health and tranquility of urban residents and is the source of numerous social tensions. Twenty stations in the central areas of Almaty with varying uses during the morning, afternoon, and evening rush hours were measured for this study. The objectives of this paper include determining sound indices, identifying potential sound sources, and calculating the relative contribution of each to the overall urban noise level. Additionally, 400 questionnaires were distributed to individuals to assess noise pollution’s effects on individuals. The average maximum value of TNI (Traffic Noise Index) in residential and commercial use is 85.4 dB(A), and the maximum value of Leq (Equivalent continuous sound level) in commercial use is 86 dB(A). In addition, 50 city bus drivers were examined to determine the impact of noise in this environment. The results revealed that as Leq increases, the number of unsafe acts increases. The questionnaires revealed that people are significantly more dissatisfied with noise pollution at stations with higher sound levels.","PeriodicalId":44086,"journal":{"name":"Noise Mapping","volume":"9 1","pages":"120 - 127"},"PeriodicalIF":2.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48395419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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