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Historical congestion estimates for over 1,000 traffic segments on Chicago's arterial streets, starting June 11, 2024. The data is produced by the Chicago Traffic Tracker, which continuously monitors GPS traces from Chicago Transit Authority buses to estimate speeds every 10 minutes. It covers approximately 300 miles of principal arterials, with segment-level speed data showing high volatility due to frequent intersections and traffic signals.
Older historical records are available in a separate dataset (https://data.cityofchicago.org/d/sxs8-h27x). The most recent estimate for each segment is in a different dataset (https://data.cityofchicago.org/d/n4j6-wkkf).
| # | Column Name |
|---|---|
| 1 | SPEED |
| 2 | FROM_STREET |
| 3 | DIRECTION |
| 4 | STREET_HEADING |
| 5 | MONTH |
| 6 | START_LATITUDE |
| 7 | COMMENTS |
| 8 | RECORD_ID |
| 9 |
| DAY_OF_WEEK |
| 10 | END_LATITUDE |
| 11 | SEGMENT_ID |
| 12 | END_LONGITUDE |
| 13 | LENGTH |
| 14 | START_LONGITUDE |
| 15 | START_LOCATION |
| 16 | BUS_COUNT |
| 17 | TO_STREET |
| 18 | TIME |
| 19 | HOUR |
| 20 | MESSAGE_COUNT |
| 21 | END_LOCATION |
| 22 | STREET |