Portland, Oregon Test Data Set Arterial Loop Detector Data

U.S Department of Transportation

Updated Oct 25, 2026

About this dataset

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.

Data and resources (3)

CSV
Portland, Oregon Test Data Set Arterial Loop Detector Data
Modified Oct 25, 2026Table and Data API available
Open link: Portland, Oregon Test Data Set Arterial Loop Detector Data Explore data: Portland, Oregon Test Data Set Arterial Loop Detector Data
JSON
Portland, Oregon Test Data Set Arterial Loop Detector Data
Modified Aug 25, 2026
Open link: Portland, Oregon Test Data Set Arterial Loop Detector Data
XSL
Portland, Oregon Test Data Set Arterial Loop Detector Data
Modified Aug 25, 2026
Open link: Portland, Oregon Test Data Set Arterial Loop Detector Data

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