Maps of human mobility change during the COVID-19 outbreak

Google has published a series of PDF files presenting reports on national and subnational human mobility levels relative to a baseline data of late January 2020. The details and the PDF files can be found at https://www.google.com/covid19/mobility/.<br>More detail on these files can be found at https://www.moodspatialdata.com/humanmobilityforcovid19<br><br>The first set of data were released on April 2 2020 and have been revised weekly since then. The maps now utilise the CSV data released by Google. Please note that the maps figures use a mean of the previous three days, while the Google PDFs use a single days data so there will be differences between values in our maps when compare to the Google PDFs.<br>The authors have extracted the majority of these data into a series of excel spreadsheets. Each worksheet provides the data for % change in numbers of records at various types of location categories illustrated by: retail and recreation, grocery and pharmacy, parks and beaches, transit stations, workplaces and residential (columns f to K). A second set of columns calculates the difference of each value from the mean values for each category (columns L to P) Columns A to E contain geographical details. Column Q contains the names used to link to a mapping file.There are separate worksheets for the date of the data from each dated release (e.g. 2903, 0504 etc.) and separate worksheets calculating the changes between specific dates.<br>The maps (for EU &amp; Global) display these data. We provide 600 dpi jpegs of the Global (“WD”) and European (“EU”) mapped values at the latest date available, for each of the mobility categories: retail and recreation (“retrec”) , grocery and pharmacy (“grocphar”) , parks (“parks”) , transit stations (“transit”), residential (“resid”) and workplaces (“work”). We also provide maps of the changes from the previous week (“ch”).<br>All data extracting and subsequent processing have been carried out by ERGO (Environmental Research Group Oxford) on behalf of the MOOD H2020 project. Data will be periodically updated. Additional maps can be obtained on request to the authors.

谷歌发布了一系列PDF报告文件，呈现以2020年1月下旬为基准期的国家级及次国家级人类流动水平相关数据。相关详情及PDF文件可访问：https://www.google.com/covid19/mobility/。更多文件细节可访问：https://www.moodspatialdata.com/humanmobilityforcovid19

首批数据集于2020年4月2日发布，此后每周进行修订。本数据集的可视化地图目前采用谷歌发布的CSV数据。需注意：本地图所展示的数值为过去三日的平均值，而谷歌PDF报告采用单日数据，因此本地图数值与谷歌PDF报告中的数值可能存在差异。

本数据集的构建者已将绝大多数原始数据整理为一系列Excel电子表格。每个工作表包含不同场所类别下的记录数变化百分比数据，涵盖零售与休闲、食品杂货店与药房、公园与海滩、公共交通站点、工作场所以及居民区（对应第F至K列）。第二组列（第L至P列）用于计算各分类数值与其均值的差值。第A至E列为地理细节信息，第Q列为用于关联映射文件的名称字段。每个数据集发布日期对应单独的工作表（例如2903、0504等格式），另有单独工作表用于计算特定日期之间的变化量。

本数据集附带欧盟（EU）及全球（WD）范围的可视化地图，展示上述流动数据。我们提供最新发布日期下，各流动分类对应的600 DPI JPEG格式地图文件，涵盖：零售与休闲（retrec）、食品杂货店与药房（grocphar）、公园（parks）、公共交通站点（transit）、居民区（resid）以及工作场所（work）。此外还提供相较于前一周的变化量地图（ch）。

所有数据提取及后续处理工作均由ERGO（牛津大学环境研究组，Environmental Research Group Oxford）代表MOOD H2020项目完成。数据集将定期更新。如需额外地图文件，可联系本数据集构建者申请。