City of Portland, OregonThis point feature class is the message sign portion of the Intelligent Transportation System (ITS) which manages demand on the system and provides information to the public on traffic movement and delays. -- Additional Information: Category: Utilities - Communications Purpose: For mapping features in the Intelligent Transportation System. Update Frequency: As needed -- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52788ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/20a2bc3559694840809cea6d8089dca1_82engPortlandMaps Open DataPublicIntelligent Transportation System (ITS) Signs [Oregon--Portland]Web servicesOregon--PortlandOregonLast Modified: 2026-01-08