josefheidler/transport_adults_2011-palms

PALMS验证数据集——GPS交通模式检测。该数据集由两名训练有素的研究助理在圣地亚哥完成约35次脚本化交通会话，使用Qstarz BT-1000 GPS记录仪（约5秒间隔，无IMU）记录活动模式。数据集包含2名参与者，67,529个GPS样本，94.7%的样本有标签，总时长为95.1小时。数据集来源于md2k-PALMS仓库，并转换为每个主题的GeoParquet格式。数据集适用于基于GPS的交通模式检测，用于预测交通模式（步行、自行车、汽车、公交车）。

PALMS Validation Dataset — GPS transportation-mode detection. Two trained research assistants at UCSD CWPHS completed ≈35 scripted transit sessions in San Diego (Feb–May 2011) carrying a Qstarz BT-1000 GPS logger (≈5 s cadence, no IMU) and logging activity modes second-by-second against prescribed routes. Harmonized from the md2k-PALMS repository into per-subject GeoParquet — one row per GPS sample. 2 participants, 67,529 GPS samples, 94.7% labelled, 95.1 h labeled. Intended for GPS-based transportation-mode detection — predicting transport from GPS traces (position, speed, altitude).