Meetings: Travel
http://www.aaas.org//meetings/2009/travel/ground/index.shtml
Ground Transportation
While Chicago is very walkable, there are also many ways to set the wheels in motion to get you where you want to go.
The Chicago Transit Authority's (CTA) convenient and easy-to-use bus and rail lines—including the famous "L"—carry you around town and to major attractions.
For specific information including maps, top attractions, and a taxi fare calculator, visit the Chicago Visitor's Information Page.