scholarly journals Geo-Crowdsourced Sound Level Data in Support of the Community Facilities Planning. A Methodological Proposal

2021 ◽  
Vol 13 (10) ◽  
pp. 5486
Author(s):  
Gabriella Graziuso ◽  
Simona Mancini ◽  
Antonella Bianca Francavilla ◽  
Michele Grimaldi ◽  
Claudio Guarnaccia

To reduce environmental noise pollution and to safeguard people’s well-being, it is urgently necessary to move towards sustainable urban development and reconcile demographic and economic growth with the protection and restoration of the environment and the improvement of the quality of human lives. This challenge should be a concern to policymakers, who must issue regulations and define the appropriate actions for noise monitoring and management, and citizens, who must be sensitive to the problem and act accordingly. Starting from an analysis of several crowdsourcing noise data collection tools, this paper focuses on the definition of a methodology for data analysis and mapping. The sound sensing system, indeed, enables mobile devices, such as smartphones and tablets, to become a low-cost data collection for monitoring environmental noise. For this study, the “NoiseCapture” application developed in France by CNRS and IFSTTAR has been utilized. The measurements acquired in 2018 and 2019 at the Fisciano Campus at the University of Salerno were integrated with the kernel density estimation. This is a spatial analysis technique that allows for the elaboration of sound level density maps, defined spatially and temporally. These maps, overlaid on a campus facilities map, can become tools to support the appropriate mitigation actions.

2011 ◽  
Vol 403-408 ◽  
pp. 1507-1510
Author(s):  
Yi Xiao Wang ◽  
Ya Nan Li ◽  
Yi Wang ◽  
Xiao Dong Chen ◽  
Dao Yin Yu

A novel system based on embedded platform for environmental noise monitoring is presented in this paper. The system is designed by ARM and DSP to implement data collection and processing respectively, as a substitute for conventional MCU and DSP structure. The DSP is used as the core processor to implement a high precision IIR filter for 1/3 octave band spectral analysis in real time. The noise data detected beyond the reference value can be processed and stored automatically, and the noise pollution sources can be identified in time by the images captured by an USB camera on the terminal. Then the data and images acquired by the system will be transmitted to the sever computer through GPRS , and the users can obtain the real time noise data and pollution sources images when they explore the website of noise monitoring center. All the properties of 1/3 octave filters can meet the International Electrotechnical Commission Standard IEC61260-2001 class I. The system has the capability of high accuracy and stable performance at all time compared with the conventional system, indicating that it has great significance to the control of a city’s noise pollution condition.


2014 ◽  
Vol 617 ◽  
pp. 110-115 ◽  
Author(s):  
Ľubica Argalášová ◽  
Jana Jurkovičová ◽  
Ludmila Ševčíková ◽  
Zuzana Štefániková ◽  
Katarína Hirošová ◽  
...  

Environmental (community) noise, particularly road traffic noise, has attracted widespread attention in recent decades as a major environmental health concern. The aim of the study was to determine the impact of environmental noise on psychosocial well-being of young healthy individuals and to follow the time trends of exposure in the period of 10, 15, 20, 25 years. The validated methodology was used to assess noise annoyance, interference with activities and sleep disturbance; the objectification of noise levels was done by direct measurement using sound level analyzer with a module for frequency analysis. The results revealed the sharp increase during the years 1989 and 1999 (the period of political and socio-economic transformation and the changes in traffic management) and the decrease in the year 2013. The findings of our study indicate the need for preventive measures to reduce environmental noise exposure in residential areas and to emphasize the importance of the elaboration of methods for environmental noise exposure risk assessment.


Author(s):  
Eoin A. King ◽  
Akin Tatoglu ◽  
Robert D. Celmer

This paper presents results of an ongoing project which aims to develop a purpose-built platform for using smart phones as alternative to sound level meters for citizen-science based environment noise assessment. In order to manage and control environmental noise effectively, the extent of the problem must first be quantified. Across the world, strategic noise maps are used to assess the impact of environmental noise in cities. Traditionally, these maps are developed using predictive techniques, but some authors have advocated the use of noise measurements to develop more reliable and robust noise maps. If adopted correctly, smartphones have the capability to revolutionize the manner in which environmental noise assessments are performed. The development of smartphone technology, and its impact on environmental noise studies, has recently begun to receive attention in the academic literature. Recent research has assessed the capability of existing smartphone applications (apps) to be utilized as an alternative low-cost solution to traditional noise monitoring. Results show that the accuracy of current noise measurement apps varies widely relative to pre-specified reference levels. The high degree of measurement variability associated with such apps renders their robustness questionable in their current state. Further work is required to assess how smartphones with mobile apps may be used in the field and what limitations may be associated with their use. To over come the above issues, this project is developing a platform specifically for citizen science noise assessment. The platform consists of a smartphone app that acquires a sound signal and transfers the data to a server via a web based API for post processing purposes. This then returns key information to the user, as well as logging the data for use in a massive noise mapping study. The structure of the proposed platform maintains a clear separation between client (phone) and server. This approach will allow implementation of future open source client side apps for both Android and iOS operating systems.


2019 ◽  
Vol 9 (24) ◽  
pp. 5566 ◽  
Author(s):  
Juliana Araújo Alves ◽  
Lígia Torres Silva ◽  
Paula Remoaldo

Noise pollution is the second most harmful environmental stressor in Europe. Portugal is the fourth European country most affected by noise pollution, whereby 23.0% of the population is affected. This article aims to analyze the effects of exposure to low frequency noise pollution, emitted by power poles and power lines, on the population’s well-being, based on a study of “exposed” and “unexposed” individuals in two predominantly urban areas in north-western Portugal. To develop the research, we used sound level (n = 62) and sound recording measurements, as well as adapted audiometric test performance (n = 14) and surveys conducted with the resident population (n = 200). The sound levels were measured (frequency range between 10 to 160 Hz) and compared with a criterion curve developed by the Department for Environment, Food and Rural Affairs (DEFRA). The sound recorded was performed 5 m away from the source (400 kV power pole). Surveys were carried out with the “exposed” and “unexposed” populations, and adapted audiometric tests were performed to complement the analysis and to determine the threshold of audibility of “exposed” and “unexposed” volunteers. The “exposed” area has higher sound levels and, consequently, more problems with well-being and health than the “unexposed” population. The audiometric tests also revealed that the “exposed” population appears to be less sensitive to low frequencies than the “unexposed” population.


2019 ◽  
Vol 16 (1) ◽  
pp. 3-20 ◽  
Author(s):  
Kleoniki Pouikli

Noise constitutes an unwanted by-product of the use of transport infrastructure and various other social and economic activities, especially in dense urbanized territories, affecting citizens’ health, sleep regime, social behavior and psychological comfort as well as the environment. The Directive 2002/49/ec on the assessment and management of environmental noise (end) sets the legislative background for the prevention of environmental noise and the reduction of its harmful effects on humans putting Member States (ms) in the driving-seat when shaping and implementing noise rules. However, although it was the first comprehensive effort aspiring to carve out a coherent eu-wide noise policy, its fragmented and problematic implementation raises crucial questions about its effectiveness. To this end, except from the end enforcement at national level, emphasis will be given to the noise protective regime emerging from echr and the ECtHR case law as well as to the most recent developments in the field, such as the “smart city” mechanisms for improving acoustic well-being in urban living spaces and the Dutch concept of “environmental distribution policy”.


2018 ◽  
Author(s):  
Surjeet Singh ◽  
Edgar Bermudez Contreras ◽  
Mojtaba Nazari ◽  
Robert J. Sutherland ◽  
Majid H. Mohajerani

AbstractIn the current research on measuring complex behaviours/phenotyping in rodents, most of the experimental design requires the experimenter to remove the animal from its home-cage environment and place it in an unfamiliar apparatus (novel environment). This interaction may influence behaviour, general well-being, and the metabolism of the animal, affecting the phenotypic outcome even if the data collection method is automated. Most of the commercially available solutions for home-cage monitoring are expensive and usually lack the flexibility to be incorporated with existing home-cages. Here we present a low-cost solution for monitoring home-cage behaviour of rodents that can be easily incorporated to practically any available rodent home-cage. To demonstrate the use of our system, we reliably predict the sleep/wake state of mice in their home-cage using only video. We validate these results using hippocampal local field potential (LFP) and electromyography (EMG) data. Our approach provides a low-cost flexible methodology for high-throughput studies of sleep, circadian rhythm and rodent behaviour with minimal experimenter interference.


2021 ◽  
Author(s):  
Zia Ur Rahman Farooqi ◽  
Iftikhar Ahmad ◽  
Nukshab Zeeshan ◽  
Predrag Ilic ◽  
Muhammad Imran ◽  
...  

Abstract Noise pollution is an emerging global problem therefore, it is imperative to determine noise level especially in the urban environment and its implications on human health. The objectives of this study were i) to assess the urban noise pollution and traffic density of Chiniot and Jhang and ii) to determine non-auditory health effects of noise pollution on the residents of both cities. Noise pollution was examined from 181 locations (103 from Jhang and 78 from Chiniot) and categorized into hospitals, educational, religious and recreational, residential, industrial areas, and traffic intersections. Noise levels measurements were taken using integrated sound level meter. The urban noise data showed 82% of the sites in Jhang and 95% in Chiniot exceeded the noise limits set by NEQS-Pak and WHO. Moreover, higher intensity of noise pollution (≥ 100 dB) was recorded in Chiniot (17 sites) than in Jhang (1 site). Regression analysis showed relatively strong relationship of traffic density with noise at Chiniot (R2 = 0.48) compared to Jhang (R2 = 0.31). However, spatial variability of noise with traffic density was observed at both cities. Survey study revealed that all the respondents in Jhang and Chiniot suffered from many noise related health problems such as annoyance (53 and 51%), depression (45 and 47%), dizziness (61 and 65%), headache (67 and 64%), hypertension (71 and 56%), hearing loss (53 and 56%), physiological stress (65 and 65%), sleeplessness (81 and 84%), and tinnitus (70 and 62%) due to noise, respectively. It is concluded that noise pollution is higher in Chiniot due to high traffic density resulted from higher population density and cottage industry. It is recommended that vehicles maintenance, family and urban planning could be effective measures to reduce urban noise pollution.


2021 ◽  
Vol 4 (2) ◽  
pp. 110-116
Author(s):  
Tri Cahyo Adi Pamungkas ◽  
Sri Wiwoho Mudjanarko

This study aims to determine (1) the level of noise in the area around Juanda Airport, (2) the perception of the community in the area around Juanda Airport about the comfort of life with noise, and (3) public perception of the discourse on implementing environmental management in the area around Juanda airport. The locations in this study are on Jalan Raya Sedati Gede (A1) and Jalan H. Abdul Rahman Sedati Gede (A2). The data collection technique used is the measurement technique with the help of a sound level meter for noise data collection, while the public perception data collection uses a questionnaire technique. The analysis technique used for public perception data is to use descriptive statistical tests. The results showed that (1) the measurement results in residential areas were in accordance with the Noise Level Quality Standard Decree of the Minister of Environment, Kep 48 / MENLH / 11/1996. November 25, 1996, for the locations of Jalan Raya Sedati Gede (A1) 77.48 dBA, and Jalan H. Abdul Rahman Sedati Gede (A2) 67.43 Dba above the noise quality standard threshold for settlements of 55 dBA. (2) The majority of the people around Juanda Airport agree that flight activities at Juanda airport cause noise that cause discomfort, rest, and cause stress. (3) The community in the area around Juanda Airport agreed to the need for environmental management as an effort to control noise.


Author(s):  
Nur Nazmi Liyana Mohd Napi ◽  
◽  
Mohd Hafizul Zainal ◽  
Samsuri Abdullah ◽  
Nazri Che Dom ◽  
...  

An undesired or hazardous outdoor sound produced by human activities is referred to as environmental noise. For example, the noise emitted through industrial activities and transportation networks such as road, rail and air traffic. In Malaysia, most of the schools located very close to the roadside and near busy places such as cities, shops, and residential areas. This study aims to analyze the environmental noise in terms of spatial and temporal analysis in two primary schools in Terengganu State. The noise monitoring had conducted in two (2) primary schools with different land use; residential area (Batu Rakit Primary School) and commercial area (Paya Bunga Primary School) on the school and non-school days by using Sound Level Meter (SLM). The spatial mapping had constructed by using SketchUp® 2018 and Surfer® version 11 software. The noise level between both study areas was significantly different based on a p-value of less than 0.05. It also surpassed the Department of Environment (DOE) of Malaysia's permitted limit, with the Equivalent Noise Level (LAeq) in residential areas being greater than in commercial areas due to traffic volume and noise from nearby activities. Lastly, the area near the roadside has higher critical noise pollution compared with the location that furthers from the roadside. In conclusion, this study is useful in creating awareness to the public about the noise pollution effect on primary school students and is also can be used for mitigation measures to have a better place for students to study.


Author(s):  
Gabrielle Kaminski Schittini ◽  
Paulo Justiniano Ribeiro Junior ◽  
Paulo Henrique Trombetta Zannin

Noise pollution affects quality of life, well-being, and is a public health problem. In educational environments, high noise levels affect the concentration and performance of students. The Polytechnic Center Campus of UFPR is affected by several sound sources and frequented by a large number of users, which points to the need for noise management. Faced with this problem, the present study objectively and subjectively evaluates the noise in the campus. The methodology consisted of measurements that followed the standards of NBR 10151/2019 at 20 points in the region; the elaboration of maps from the insertion of parameters of relief, traffic, and characteristics of buildings and roads, calibrated according to the data collected in the measurements; and questionnaires about noise nuisance in the campus, answered by 400 users of the site. Measurement results show that the limits established at national and municipal level were not respected in a large part of the area under study. Sound maps show the surroundings of the campus delimited by dark colors that indicate high levels of noise, and internal areas demarcated by colors that represent sound pressure levels above the allowed. Interviews indicate that 60% of respondents feel annoyed by noise in the campus, and 40% consider the level of environmental noise to be reasonable. The conclusion regarding noise pollution and the influence on performance points to the need for noise control measures in the area.


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