The Marcus Wallenberg Laboratory for Sound and Vibration Research (MWL), Department of Engineering Mechanics, KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden.
J Acoust Soc Am. 2021 Mar;149(3):1838. doi: 10.1121/10.0003778.
Sweden stands out among the other European countries by the degree of restrictive measures taken towards handling the 2019 coronavirus outbreak, associated with the CoViD-19 pandemic. While several governments have imposed a nationwide total or partial lockdown to slow down the spread of the virus, the Swedish government has opted for a recommendation-based approach together with a few imposed restrictions. In a previous contribution by the authors, the impact of the Swedish strategy was observed through the monitored variation of the city noise levels during a period associated with the so-called "first wave" of the pandemic in Stockholm. A very strong impact of these recommendations was shown on the evolution of the noise levels in central Stockholm. This highlighted the potential of acoustic sensor networks both for enforcement of regulation and monitoring of the effectiveness of their implementation. The present contribution presents a follow-up to this urban noise monitoring in central Stockholm, Sweden, for the period leading to the so-called "second wave" of the pandemic in Europe. Both the evolution of adherence to the recommendations and the impact of the recurrence of cases combined with reinforced recommendations are observed through the evolution of the measured noise levels. While the measurements show a gradual lower level of compliance, in particular, past the summer break, these also show again a rapid response to the reinforced recommendations issued by the authorities in mid-fall of 2020. These observations thus confirm the potential associated with detailed urban noise monitoring, for instance here acting as a proxy to evaluating the response to recommendations or restrictions in times of crisis.
瑞典在处理 2019 年冠状病毒爆发（与 CoViD-19 大流行相关）方面采取的限制措施的程度上，在其他欧洲国家中脱颖而出。虽然一些政府已经实施了全国范围的全面或部分封锁以减缓病毒的传播，但瑞典政府选择了基于建议的方法，并实施了一些限制措施。在作者之前的一篇贡献中，通过监测斯德哥尔摩在所谓的“第一波”大流行期间城市噪声水平的变化，观察了瑞典策略的影响。这些建议对斯德哥尔摩市中心噪声水平的演变产生了非常强烈的影响。这突出了声学传感器网络在执行法规和监测其实施效果方面的潜力。本贡献介绍了瑞典斯德哥尔摩市中心城市噪声监测的后续行动，该监测针对欧洲所谓的“第二波”大流行。通过测量噪声水平的变化，观察到对建议的遵守情况的演变以及病例的再次出现与强化建议的综合影响。虽然测量结果显示出合规性逐渐降低，尤其是在暑假过后，但这些结果也再次显示出对 2020 年秋中当局发布的强化建议的快速响应。这些观察结果因此证实了详细的城市噪声监测的潜力，例如在这里可以作为评估在危机时期对建议或限制措施的反应的代理。
