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Dynamic roadway channelization data from the City of Seattle, last updated 2026-03-22. The dataset represents paint lines, curbs, and other markings that delineate traffic lanes, bike routes, and bus zones, which are critical for public safety. It is owned by the SDOT Transportation account and is made available as a common data layer in Open Data.
Refresh cycle is listed as 'None, Dynamic via AutoCAD updates', which may imply irregular or event-driven updates rather than a scheduled refresh.