How many people drive through the Illinois IPASS lanes everyday? Where can I find more info on IPASS usage?

Question

Can anyone please supply a good place to get usage stats on state tollway systems that use transponders for electronic toll paying?

Answer 1

www.illinoistollway.com, www.dot.state.il.us

Answer 2

E-ZPass is an electronic toll collection system used on most tolled roads, bridges, and tunnels in the northeastern United States. Twenty-four agencies spread across 13 states make up the E-ZPass Interagency Group (IAG). All member agencies use the same technology, allowing travelers to use the same E-ZPass transponder throughout the IAG network. Various independent systems that use the same technology have been integrated into the E-ZPass system. These include Fast Lane in Massachusetts, Smart Tag in Virginia, I-Pass in Illinois, i-Zoom in Indiana, and the defunct M-Tag in Maryland.

http://en.wikipedia.org/wiki/Ezpass

this site has links to all of the state's web pages.