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Available on 2 platforms
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Historical congestion estimates for 1,270 traffic segments on Chicago's arterial streets, derived from GPS traces of Chicago Transit Authority buses. The dataset covers selected periods from August 2011 to May 2018, providing speed observations for approximately 300 miles of principal arterials. It was produced by the Chicago Traffic Tracker system, which generated estimates every 10 minutes.
This dataset contains historical records only. Newer records are available in separate datasets (sxs8-h27x and n4j6-wkkf). The platform descriptions note high volatility in segment-level speed data.
| # | Column Name |
|---|---|
| 1 | BUS COUNT |
| 2 | SPEED |
| 3 | MESSAGE COUNT |
| 4 | TIME |
| 5 | SEGMENTID |