Salzburg Intersection Trajectory and PET Interaction Dataset (SIT-PET)

This dataset provides high-resolution road user trajectory data and PET-based interaction events collected at a signalized urban intersection in Salzburg, Austria. Trajectories of vehicles, pedestrians, and two-wheelers are complemented by predefined interaction scenarios and corresponding Post-Encroachment Time (PET) computations, enabling detailed analysis of spatiotemporal interactions at the intersection. The dataset is intended for research on surrogate safety measures, traffic behavior analysis, and method development in traffic safety studies. PET events are provided as raw computation results without criticality filtering, allowing users to apply their own thresholds and definitions. Static object attributes, scenario definitions, traffic signal states, and weather observations are included to support contextual analyses. Due to data volume constraints, the published dataset represents a six-month representative test subset of a larger dataset while preserving the full structure and semantics. Detailed documentation of all tables, attributes, and relationships is provided in the accompanying README and schema files. An accompanying data descriptor article describing the data preparation in more detail was published in Data. Please cite the article if you use this dataset. Steinmaßl, M.; Rehrl, K.; Vornberger, T. SIT-PET: Long-Term Multimodal Traffic Trajectory Data with PET-Based Interaction Events at a Signalized Intersection. Data 2026, 11, 68. https://doi.org/10.3390/data11040068