City of Portland, OregonPoints representing the locations of speed counts on City of Portland streets. Attribute information includes average daily traffic volumes, observed speed broken out by percentile, and percent travelling over posted speeds. -- Additional Information: Category: Transportation - Right of Way Management Purpose: For mapping and analysis of traffic speeds in Portland. Update Frequency: Weekly -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=53245ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/914a58eac9764e9eb8fa5553255d2699_249engPortlandMaps Open DataPublicTraffic Speed Counts [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2026-01-08