Velocity Individual Traffic Match

Data contains each traffic data "match" generating by the host sensor in one of approximately 100 locations throughout the city. These sensors include Bluetooth/WiFi readers are deployed to collect data from devices that are within range of the sensor usually cellphones. Data is encrypted and then any identifiable information from each read is removed. The system then produces a match and timestamp if a specific device crosses between two readers. Each match is a single traffic data record containing an individual vehicle's travel time and speed along a roadway segment.

数据集包含由城市中约100个不同位置的主传感器生成的每项交通数据“匹配”记录。这些传感器包括蓝牙/WiFi读取器，被部署用于收集处于传感器范围之内的设备数据，通常为手机。数据经过加密处理，随后从每个读取的记录中移除任何可识别信息。系统随后生成匹配项和时间戳，如果特定设备跨越两个读取器之间。每个匹配项都是一个单独的交通数据记录，包含单个车辆在道路段上的行驶时间和速度。