Traffic and Weather Datasets

The PeMS traffic datasets have been collected by the California Transportation (Caltrans) agency for 30-second granularity, and the raw and aggregated data are publicly available on their website (https://pems.dot.ca.gov/?dnode=Clearinghouse&type=meta&district_id=7&submit=Submit). We have gathered 5-minute aggregated vehicular traffic state (i.e traffic speed) dataset for district four and seven of California for 2022. We have used Bing Distance Matrix API to compute a driving distance between each sensor. The API can be used to compute a driving distance between a single source or multiple sources and source or multiple destinations at once. In addition, the weather datasets have been collected from https://www.visualcrossing.com/weather/weather-data-services and the datasets have one-hour granularity, and we have only removed some of the unnecessary columns.

PeMS交通数据集由加利福尼亚州交通局（California Transportation, Caltrans）以30秒的时间粒度采集，其原始数据与聚合数据已在其官方网站（https://pems.dot.ca.gov/?dnode=Clearinghouse&type=meta&district_id=7&submit=Submit）公开获取。我们采集了2022年加州第四、第七辖区的5分钟聚合机动车交通状态（即交通速度）数据集。我们使用必应距离矩阵API（Bing Distance Matrix API）计算各传感器间的驾车距离，该API支持单次计算单个或多个起点至单个或多个终点的驾车距离。此外，我们从https://www.visualcrossing.com/weather/weather-data-services 获取了天气数据集，该数据集的时间粒度为1小时，我们仅移除了部分非必要字段。