Intersection Approach Segments are short sections of road leading up to an intersection. The dataset represents these segments for the District of Columbia, managed by DDOT's Roads and Highways division. The data was last updated on March 25, 2026.
Use Cases
- Analyze intersection geometry and approach lengths based on the defined road segments.
- Map urban transportation networks based on the geospatial intersection data.
- Perform linear referencing system (LRS) operations based on the roadway segment structure.
- Integrate intersection points into GIS applications based on the single representative point conversion.
Strengths
- Data is provided in multiple geospatial formats including KML, GeoJSON, and ArcGIS REST API.
- License is Creative Commons Attribution 4.0 (CC-BY-4.0), allowing for reuse.
- Last updated date is explicitly provided: 2026-03-25 08:35:57.115902.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Description metadata is limited; actual data quality requires manual inspection after download.
Provenance
- Source
- District of Columbia Department of Transportation (DDOT)
- Collection Method
- Created through a custom DDOT script that reduces a series of intersection points into a single representative point.
- Freshness
- Last updated 2026-03-25 08:35:57.115902.
- Geography
- District of Columbia