Simulated trajectories of city population: Levy walks along Buffalo, NY, street network

Simulated trajectories of the full 2000 census population of Buffalo, New York. Each simulated person was placed randomly along a road within his or her census tract of residence and then independently performed road-network-constrained, truncated Lévy walks for 8 hours of simulated time, moving at 4 km per hour. The trajectories were then sampled at 30 minute intervals. The original dataset was created for studying indexes of activity-space segregation. It is archived at https://zenodo.org/record/2865830#.XpYviKsza00 and described more fully in Palmer (2013), Activity-Space Segregation: Understanding Social Divisions in Space and Time (http://arks.princeton.edu/ark:/88435/dsp01k643b130h). This version has been created to aid in testing contact-tracing apps and mobility analysis tools. The fields are: latitude: latitude longitude: longitude time: UNIX time in milliseconds ID: random ID assigned to each individual纽约州布法罗市2000年人口普查全覆盖在册人口的模拟移动轨迹。每位模拟个体均被随机安置于其居住普查区（census tract）内的道路沿线，随后以每小时4公里的移动速度，独立开展受道路网络约束的截断莱维行走（truncated Lévy walks），模拟时长共计8小时。后续以30分钟为间隔对移动轨迹进行采样。本数据集最初用于研究活动空间隔离（activity-space segregation）指数。该数据集存档于https://zenodo.org/record/2865830#.XpYviKsza00，详细说明可参见Palmer（2013）发表的《活动空间隔离：理解空间与时间中的社会分化》（原文链接：http://arks.princeton.edu/ark:/88435/dsp01k643b130h）。本次发布的版本专为测试接触者追踪应用与移动性分析工具而打造。数据字段说明如下：纬度：纬度坐标；经度：经度坐标；时间：以毫秒为单位的UNIX时间戳；ID：为每位个体分配的随机标识符