In response to the COVID-19 pandemic, both voluntary changes in behavior and administrative restrictions on human interactions have occurred. These actions are intended to reduce the transmission rate of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We use anonymized and/or de-identified mobile device locations to measure mobility, a statistic representing the distance a typical member of a given population moves in a day. Results indicate that a large reduction in mobility has taken place, both in the US and globally. In the United States, large mobility reductions have been detected associated with the onset of the COVID-19 threat and specific government directives. Mobility data at the US admin1 (state) and admin2 (county) level have been made freely available under a Creative Commons Attribution (CC BY 4.0) license via the GitHub repository https://github.com/descarteslabs/DL-COVID-19/

中文翻译：

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应对 COVID-19 的流动性变化

为应对 COVID-19 大流行，行为的自愿改变和对人际交往的行政限制都发生了。这些行动旨在降低严重急性呼吸系统综合症冠状病毒 2 (SARS-CoV-2) 的传播率。我们使用匿名和/或去标识化的移动设备位置来衡量移动性，这是一个统计数据，表示给定人口的典型成员一天中移动的距离。结果表明，无论是在美国还是在全球范围内，流动性都出现了大幅下降。在美国，已检测到与 COVID-19 威胁的出现和特定政府指令相关的大量流动性减少。美国 admin1（州）和 admin2（县）级别的移动数据已根据知识共享署名 (CC BY 4.