This area is designed to provides IDOT’s target audiences with our story, past, current, and our vision for tomorrow, as well as provide information on employment and training opportunities and how to stay connected and get involved with transportation efforts near you.
This area is designed to provide a broad overview of the Illinois transportation system that our public partners and stakeholders can utilize to plan the transportation vision, develop sensible policies and make decisions that reflect and meet the needs of Illinois citizens and transportation users.
This area is designed to provide information for all transportation users from a multi-modal perspective, to include specialized resources such as interactive maps, safety-focused videos, and other traveler resources to enrich the Illinois travel experience.
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The General Highway Maps Section includes County, City and Township maps.
The county classification maps depict the rural classification of the road network outside the city urban area within the selected county and emphasize the display of the road network outside the cities and villages.
The city classification maps depict the urban classification of the road network primarily for the selected city's urban area and emphasize the display of the road network inside the cities and villages at a larger scale than the county maps.
The township classification maps depict the urban classification of the road network for larger city urban areas that do not fit on one single map sheet (eg: Chicago, South Beloit, Rockford, Peoria and E. St. Louis Urban Areas) and emphasize the display of the road network on a regional basis without regard to specific city and village boundaries.
If you have any question on ordering or viewing maps, please call (217) 782-2270.
Please select the appropriate district below.
UA - Urban Area
The Traffic maps listed below display the annual average daily traffic (AADT) on the State Primary system. The Primary system contains the roads that are marked as an Interstate, United States Route, or Illinois Route. These files are very large and may take a significant amount of time to download.
More detailed AADT counts are available on the interactive GIS application