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.
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.
Average Daily Traffic (ADT) volumes and truck volumes for specific locations are available on the Average Daily Traffic Counts GIS application
The Illinois Travel Statistics booklet contains a variety of current and historical traffic information. Vehicle Miles of Travel (VMT) data is summarized by IDOT highway district, county, functional class, road system, and urbanized area. While statewide travel history dates back to 1950, individual county VMT subtotals have been tabulated for the last five years. Charts displaying monthly, daily, and hourly traffic patterns are also included.