King CountyFor more information about this layer please see the GIS Data Catalog . A traffic island is a solid or painted object in a road that channelizes traffic. It can also be a narrow strip of island between roads that intersect at an acute angle. If the island uses road markings only, without raised curbs or other physical obstructions, it is called a painted island. Traffic islands can be used to reduce the speed of cars driving through.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/b3216e70c50b4865bb43a883fa754249_0engKing County GIS Open DataPublicTraffic Island maintained by King County Roads Division [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2025-08-04