July 21, 2020 / by Open Data Portal Team / In Open Data , Data Portal

Traffic Crash Datasets Data Source

We have made a small internal adjustment to the data source for our Traffic Crash datasets:

• Traffic Crashes - Crashes
• Traffic Crashes - Vehicles
• Traffic Crashes - People

The data are fundamentally the same but come from a slightly different version of the source dataset. This change added about 0.6% to the historical count of crashes and should be more reliable on an ongoing basis.

Please feel free to contact us at dataportal@cityofchicago.org or @ChicagoCDO with any questions.