TransverseMarkings is a dataset from the City of Seattle's SDOT Transportation account, representing roadway paint lines, curbs, and other markings that delineate traffic lanes, bike routes, and bus zones. The data is a common layer created from a read-only view of a feature layer and is made available in Open Data. It was last updated on 2026-03 22.
Use Cases
- Modeling traffic flow and lane configurations based on roadway paint lines and curbs.
- Analyzing bike route and bus zone infrastructure based on channelization markings.
- Assessing public safety and road design based on longitudinal and transverse markings.
- Creating geospatial visualizations of urban transportation networks based on the described layers.
Strengths
- Data is described as dynamic via AutoCAD updates, suggesting a link to an authoritative engineering source.
- The dataset is structured into specific layers including Vertical Elements, Lane Widths, and Panel Markings, indicating organized thematic data.
- Available in multiple formats including CSV, JSON, and GeoPackage, providing flexibility for different analysis tools.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment for large-scale modeling.
- The description metadata is limited; actual data quality and completeness require manual inspection.
Provenance
- Source
- City of Seattle, SDOT Transportation account.
- Collection Method
- Common data layer created from a read-only view of a feature layer.
- Time Range
- null
- Freshness
- Last updated 2026-03-22 03:38:18.361518; freshness should be verified.
- Geography
- Likely City of Seattle, Washington, USA.