Multi-Sensor Intersection Safety Data from Controlled Test Facility

A collection of 1,104 unique runs of multi-sensor data collected at a controlled roadway intersection for training intersection safety algorithms. Data was gathered from 20 roadside sensors, including visual and thermal cameras, LiDAR, and radar, at a test facility in McLean, VA from October 2023 through March 2024. The full dataset is approximately 1 TB in size.

Use Cases

• Train object detection models using data from eight closed-circuit television (CCTV) visual cameras and five thermal cameras for pedestrian and bicyclist identification.
• Develop sensor fusion algorithms by integrating data from two light detection and ranging (LiDAR) sensors and four radar sensors to track vehicle and vulnerable road user trajectories.
• Analyze traffic signal phase and timing data alongside vehicle and pedestrian calls to the signal controller to model intersection conflict scenarios.
• Refine multi-modal detection systems using data collected under both daytime and nighttime conditions to improve algorithm robustness.

Strengths

• Data collection involved 20 calibrated roadside sensors, providing multiple data modalities for analysis.
• The dataset comprises 1,104 unique experimental runs, simulating various conflict and non-conflict scenarios.
• Data was collected in a controlled test environment at the FHWA Turner-Fairbank Highway Research Center, ensuring consistent conditions.

Limitations

• The dataset is unlabeled, lacking ground truth annotations required for supervised model training.
• Data originates from a single, specific intersection in McLean, VA, which may limit geographic generalizability.
• Access to the full 1 TB training dataset requires a formal request process, with only a 20-run sample immediately available.

Provenance

Source

U.S. Department of Transportation (U.S. DOT) Intersection Safety Challenge.

Collection Method

Multi-sensor data collection at a controlled test roadway intersection within the FHWA Turner-Fairbank Highway Research Center Smart Intersection facility.

Time Range

October 2023 through March 2024.

Freshness

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

Geography

McLean, Virginia, USA.