Elected OfficialsMayor's Office City Clerk and Ordinances City Treasurer City Council, Your Ward & Aldermen
Departments311 City Services Administrative Hearings Animal Care & Control Aviation Budget & Management Buildings Bus. Affairs & Consumer Protection City of Chicago TV Cultural Affairs & Special Events Emergency Mgmt & Communications Ethics
Family & Support Services Finance Fire Fleet and Facility Management Human Relations Human Resources Independent Police Review Authority Innovation & Technology Inspector General's Office Law Legislative Inspector General
The OEMC's Traffic Management Authority (TMA), established in 2004, provides traffic management and performs traffic control functions throughout the City. TMA is committed to ensuring the safe and effective movement of traffic throughout Chicago, during special events, unplanned incidents, as well as normal operations in high-traffic areas of the City. Traffic Control Aides (TCAs) cover over 4,600 events around the city, including the Central Business District, O'Hare and Midway Airports, and special events held throughout the city.