Multi-Modal Intelligent Traffic Signal Systems Basic Safety Messages

Data collected during the Multi-Modal Intelligent Transportation Signal Systems (MMITSS) study, a next-generation traffic signal system. The dataset contains Basic Safety Messages (BSMs), standardized vehicle-to-vehicle and vehicle-to-infrastructure communications transmitted at approximately 10Hz. It was produced by the Department of Transportation.

Use Cases

• Analyze vehicle position and motion by processing BSM Part I data containing latitude, longitude, elevation, heading, speed, and acceleration.
• Study vehicle safety event responses using BSM Part II optional data such as path history, path prediction, and event flags.
• Model traffic signal interactions by correlating BSMs with MAP and Detectors data from the MMITSS framework.
• Assess vehicle component status via BSM Part II fields detailing lights, wipers, and brakes status.

Strengths

• Data adheres to the SAE J2735 Standard, ensuring interoperability for DSRC applications.
• Messages are transmitted at a high frequency (approximately 10Hz), providing detailed temporal resolution.
• Includes both fundamental vehicle state data (Part I) and extended safety information (Part II).
• Associated with a field test project conducted by the Department of Transportation.

Limitations

• Specific data volume (row count, file size) is unknown, making it difficult to assess computational requirements.
• Column structure is unspecified, complicating initial schema understanding and data parsing.
• Contains data from a specific field test (MMITSS study), which may limit geographic and temporal generalizability.

Provenance

Source

Department of Transportation

Collection Method

Collected during the Multi-Modal Intelligent Transportation Signal Systems (MMITSS) study field test.

Freshness

Last updated 2026-01-20, indicating recent maintenance.

Geography

Tags reference Arizona, suggesting data collection likely occurred there.