Find interactive maps, videos, and other resources for road conditions, construction, trucking routes, and more on the illinois department of. Illinois roadway analysis database system is a graphical application providing access to current and planned projects,. You can find information on winter road conditions, annual average daily traffic, road construction, trucking routes, and planned road projects. Road closures driving conditions can change very quickly depending on weather, roadway, and traffic challenges, and can cause inconvenience and. Be sure to check the illinois road construction, illinois road closures, illinois.