Portland, Oregon Test Data Set Freeway Loop Detector Data
datahub.transportation.gov | Last Updated 1 May 2024This 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.The freeway data consists of two months of data (Sept 15 2011 through Nov 15 2011) from dual-loop detectors deployed in the main line and on-ramps of a Portland-area freeway. The section of I-205 NB covered by this test data set is 10.09 miles long and the section of I-205 SB covered by this test data set is 12.01 miles long The data includes: flow, occupancy, and speed.
This dataset has the following 7 columns:
| Column Name | API Column Name | Data Type | Description | Sample Values |
|---|---|---|---|---|
| detectorid | detectorid | number | id of the detector | 1345 1346 1347 1348 1350 view top 100 |
| starttime | starttime | date | Start of the 20-second interval which is represented by this data | 2011-10-11T04:09:40.000Z 2011-10-15T11:52:40.000Z 2011-10-14T06:34:20.000Z 2011-10-05T01:04:20.000Z 2011-10-14T08:57:00.000Z view top 100 |
| volume | volume | number | 20-second count for this detector | 0 1 2 3 4 view top 100 |
| speed | speed | number | 20-second average speed for this detector. Speed is measured by speed-trap (dual-loop) detectors (mph) | 0 61 58 59 60 view top 100 |
| occupancy | occupancy | number | 20-second average occupancy for this detector (percent between 0 and 100). | 0 1 2 3 4 view top 100 |
| status | status | number | Detector failure management data status from the ODOT ATMS. 0 = Inhibited, 1 = Disabled, 2 = OK, 3 = Suspect, 4 = Soft Failed, 5 = Hard failed | 2 0 3 view top 100 |
| dqflags | dqflags | number | Representation of data quality flags, described in Section 1.1.3 of the documentation. | 0 24 8 72 4 view top 100 |