These sets of I80 West from Indiana to Wyoming are all from July 2000.
Michigan City, Indiana.
Traffic gets heavier here as you approach Chicago and Chicago's suburbs.
I80, I294, and I94 split apart here.
There are lots of cars are here, like I5 in Los Angeles. Unlike Los Angeles, there are no carpool lanes through here. After this I80 is a tollway for a while. Interstate 80 does not actually enter the city of Chicago but it sure goes through the suburbs. I80 and I294 are together in this area. This is in Lansing.
Here I80 splits from I294 and I80 does not go through Chicago itself. I80 stops being a tollway here.
I80 West in Illinois
I80 Index Page
The Chicago Airport (O'Hare)