Spatial evaluation of environmental noise with the use of participatory sensing system in Singapore

IF 1.7 Q2 ACOUSTICS

Noise Mapping Pub Date : 2021-01-01 DOI:10.1515/noise-2021-0019

Huey Ting Diong, R. Neitzel, W. Martin

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引用次数: 5

Abstract

Abstract Existing studies in Singapore on environmental noise are scarce and limited in scale due to the need for expensive equipment and sophisticated modelling expertise. This study presents the approach of using participatory sensing and mobile phones to monitor environmental sound levels around Singapore. iPhones running the AmbiCiti application was adopted to sample equivalent continuous 30-second average outdoor sound levels (LAeq,30sec). The aggregated mean of each region was evaluated and the spatial distribution of environmental noise was analysed using noise maps generated from the measurement data. A total of 18,768 LAeq,30sec measurements were collected over ten weeks. About 93.6% of the daytime measurements (07:00 – 19:00) exceeded the WHO recommended level of 55 dBA to minimise negative non-auditory health effects due to noise. The results of this study suggest that the population of Singapore is potentially at risk of adverse non-auditory health effects and, to a lesser extent, hearing loss due to community noise levels. However, the measurements exceeding 70 dBA were frequent enough to warrant concern about contributions to the cumulative lifetime sound exposure contributing to hearing loss. The work also demonstrates that sound maps of an area can be efficiently generated using calibrated applications running on smart phones.

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新加坡参与式传感系统对环境噪声的空间评价

摘要由于需要昂贵的设备和复杂的建模专业知识，新加坡现有的环境噪声研究很少，规模有限。这项研究提出了使用参与式传感和移动电话监测新加坡周围环境声音水平的方法。采用运行AmbiCiti应用程序的iPhone来采样等效的连续30秒平均室外声音水平（LAeq，30秒）。评估了每个区域的聚合平均值，并使用测量数据生成的噪声图分析了环境噪声的空间分布。在十周内总共收集了18768个LAeq，30秒的测量值。约93.6%的日间测量值（07:00–19:00）超过了世界卫生组织建议的55 dBA水平，以最大限度地减少噪音对非审计健康的负面影响。这项研究的结果表明，新加坡人口可能面临不利的非听觉健康影响的风险，并且在较小程度上，由于社区噪音水平而导致听力损失。然而，超过70 dBA的测量频率足够高，足以引起人们对累积寿命声音暴露导致听力损失的担忧。这项工作还表明，使用智能手机上运行的校准应用程序可以有效地生成一个区域的声音地图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Noise Mapping ACOUSTICS-

CiteScore

7.80

自引率

17.90%

发文量

审稿时长

12 weeks

期刊介绍： Ever since its inception, Noise Mapping has been offering fast and comprehensive peer-review, while featuring prominent researchers among its Advisory Board. As a result, the journal is set to acquire a growing reputation as the main publication in the field of noise mapping, thus leading to a significant Impact Factor. The journal aims to promote and disseminate knowledge on noise mapping through the publication of high quality peer-reviewed papers focusing on the following aspects: noise mapping and noise action plans: case studies; models and algorithms for source characterization and outdoor sound propagation: proposals, applications, comparisons, round robin tests; local, national and international policies and good practices for noise mapping, planning, management and control; evaluation of noise mitigation actions; evaluation of environmental noise exposure; actions and communications to increase public awareness of environmental noise issues; outdoor soundscape studies and mapping; classification, evaluation and preservation of quiet areas.