Chicago Department of Transportation (CDOT)
- Offers news, real time traffic information and weekly bulletins, projects and programs, and information on bureaus of highways, streets, traffic, signs and markings, bridges and transit, inspections, and administration and planning.
- http://www.cityofchicago.org/Transportation/

ParkCard
- A charge card for parking at InterParking garages located throughout the Chicagoland. Information on how to get the card, location maps of participating lots, and contact information.
- http://www.parkcard.com/