The Regional Transportation Authority (RTA) is the unit of local government charged with regional financial and budgetary oversight, funding and transit planning for the Chicago Transit Authority (CTA), Metra and Pace bus and Pace Americans with Disabilities Act (ADA) Paratransit Service (also known as the Service Boards). The RTA region’s system provides more than two million rides each weekday on bus and rail services in Cook, DuPage, Kane, Lake, McHenry, and Will Counties.

The region’s system covers approximately 3,700 square miles and serves approximately 8.4 million residents. The RTA also provides rider services, including online and telephone travel planning assistance and travel training for seniors and people with disabilities. The RTA’s regional system is the second largest transit system in the country by passenger miles traveled, behind only New York, and the third largest in the country by ridership, behind only New York and Los Angeles.