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Portland, Oregon Test Data Set Arterial Loop Detector Data

Published by US Department of Transportation | Department of Transportation | Catalog Last Checked: January 20, 2026 at 11:40 AM | Dataset Last Updated: April 16, 2012
This set of data files was acquired under USDOT FHWA cooperative agreement DTFH61-11-H-00025 as one of the four test data sets acquired by the USDOT Data Capture and Management program. This is the primary loop detector data table. It contains one-minute volume, occupancy, and data quality flags for the arterial loop detector data.

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