Traffic Control Infrastructure in Washington DC

A 2025-updated inventory of traffic control infrastructure at intersections within the District of Columbia. The dataset includes traffic poles, pavement markings, cabinets, and cameras located within 10 meters of curb faces, specifically those supporting control devices like signs, signals, and cameras. It excludes poles supporting only name plate or parking enforcement signs.

Use Cases

• Map the spatial distribution of traffic cameras and signals for urban infrastructure planning and traffic flow analysis.
• Analyze the density of traffic control devices like poles and cabinets relative to intersection geometry for safety studies.
• Integrate location data for traffic poles and pavement markings with real-time traffic data to model network performance.

Strengths

• Data is recent, with a last update in February 2025.
• Provides a detailed scope, specifying collection of assets within 10 meters of curb face intersections.
• Offers data in multiple geospatial formats including GEOJSON, KML, and via an ArcGIS REST API for flexibility.

Limitations

• The total number of records (rows) and specific data attributes (columns) are unknown, limiting pre-analysis assessment.
• Data coverage is geographically restricted to the District of Columbia, limiting broader regional applications.
• The description indicates specific exclusions (e.g., poles with only name plate signs), which may create gaps for certain analyses.

Provenance

Source

District of Columbia government.

Collection Method

Collected physical inventory of traffic poles, markings, cabinets, and cameras at intersections.

Freshness

Last updated on 2025-02-04.

Geography

District of Columbia, specifically intersections within 10 meters of curb faces.