City of Seattle ArcGIS OnlineView of Channelization data represents roadway paint lines, curbs, and other markings that delineate traffic lanes, bike routes, bus zones, etc. which are critical for public safety. Common Data Layer: Common data layer created from a read only view from this feature layer. It is owned by SDOT Transportation account and will be made available in Open Data. Refresh Cycle: None, Dynamic via AutoCAD updates Channelization data consists of the following layers: Vertical Elements Lane Widths Panel Markings Longitudinal Markings Transverse Markings Legend and Symbols General BackgroundArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/e7c54ba0f1b24128a9cb2a95912a5194_6engSeattle GeoDataPublicLegend and Symbols [Washington (State)--Seattle]Web servicesWashington (State)--SeattleWashington (State)Last Modified: 2026-01-08