Tampa CV Pilot: Signal Phasing and Timing (SPaT) Sample from Roadside Units

A sample of Signal Phasing and Timing (SPaT) messages transmitted by roadside units (RSUs) within the Tampa Connected Vehicle Pilot study area. The data follows the SAE J2735 standard for vehicle-to-infrastructure communication and is available in CSV, JSON, XML, and RDF formats. The full raw dataset can be requested from the ITS DataHub Sandbox.

Use Cases

• Analyze signal state timing and coordination using payload_data_SPAT_intersections_IntersectionState_timeStamp and payload_data_SPAT_intersections_IntersectionState_status from 25+ available columns.
• Model intersection-specific traffic flows using payload_data_SPAT_intersections_IntersectionState_id_id and payload_data_SPAT_intersections_IntersectionState_states_MovementState.
• Assess data generation and transmission patterns using metadata_generatedAt, metadata_RSUID, and metadata_logFileName.
• Perform random sampling for analysis or model training using the added randomNum column.

Strengths

• Data structure adheres to the standardized SAE J2735 data frames and structure.
• Includes a randomNum column specifically added to facilitate random sampling within the Socrata platform.
• Available in multiple machine-readable formats including CSV, JSON, XML, and RDF.

Limitations

• Row count and total dataset size are unknown, which may limit suitability assessment for large-scale projects.
• Description metadata is limited; actual data quality and completeness require manual inspection after download.

Provenance

Source

Tampa Connected Vehicle (CV) Pilot, accessible via datahub.transportation.gov.

Collection Method

Generated from the interaction between vehicles and infrastructure, transmitted by road-side units (RSUs).

Freshness

Last updated 2026-03-25 20:53:06; freshness should be verified.

Geography

Tampa CV Pilot Study area.