Intersection Safety Validation Data from Multi-Sensor Test Facility

Featuring 41 unique runs of multi-sensor data from a controlled intersection test facility, totaling approximately 30 GB. It includes labeled validation data with 3D bounding boxes and conflict/no-conflict labels for road users, collected from 20 roadside sensors including cameras, LiDAR, and radar. The data was gathered by the U.S. Department of Transportation at the TFHRC Smart Intersection in McLean, VA from October 2023 through March 2024.

Use Cases

• Train object detection models using 3D bounding box ground truth from visual and thermal camera feeds.
• Develop conflict prediction algorithms using the binary conflict/no-conflict labels for each experimental run.
• Fuse data from multiple sensor types (e.g., LiDAR, radar, CCTV) for robust road user tracking and classification.
• Analyze traffic signal phase and timing data in relation to vehicle and pedestrian calls to the controller.
• Validate intersection safety systems using the provided ground truth for position, rotation, and conflict status.

Strengths

• Includes 41 unique experimental runs, providing a substantial volume of scenario-based data.
• Data originates from 20 calibrated roadside sensors, including eight CCTV, five thermal cameras, two LiDAR, and four radar units.
• Provides two sets of ground truth: 3D bounding boxes per timestamp and a binary conflict label per run.
• Covers both daytime and nighttime conditions and includes vulnerable road user scenarios.

Limitations

• Data is limited to a single, controlled four-way intersection, which may not generalize to other intersection geometries or real-world traffic conditions.
• The dataset size of 41 runs may be insufficient for training large, data-hungry deep learning models without augmentation.
• No actual human vulnerable road users were involved in conflicts, which may limit the realism of the conflict scenarios.

Provenance

Source

U.S. Department of Transportation, Federal Highway Administration Turner-Fairbank Highway Research Center (TFHRC) Smart Intersection facility.

Collection Method

Collected from 20 roadside sensors and traffic control devices at a controlled test roadway intersection as part of the Intersection Safety Challenge.

Time Range

October 2023 through March 2024.

Freshness

Data was collected from October 2023 through March 2024 and was last updated in March 2026.

Geography

McLean, Virginia, USA.