The Chicago Department of Aviation (CDA) compiles monthly statistics, including flight operations, passenger totals and cargo tonnage. The data is provided by the airlines and summarized by the CDA. Use the drop downs below to view all air traffic data from O'Hare and Midway International Airports from as far back as the year 2000.
IDOT annually publishes detailed traffic information based on a statewide traffic count program. Counts from this program range in duration from continuously recorded data at permanent count stations to thousands of 24-hour counts at locations throughout the state.
The BTS Geospatial Portal features the National Transportation Atlas Database (NTAD), provides access to a collection of reference, thematic, and story maps, and develops mapping applications to visualize and analyze geospatial data, and tools that allow users to make custom maps.