Airport Noise Management System (ANMS)


February 2019


- +3% over February 2018
- West Flow 58%, East Flow 42%
- Nighttime operations accounted for 11% of overall operations.

Aircraft Fleet Mix:
- MD80 average daily operations down 70% since February 2018

Noise Report:
- Site 12 was replaced with a new analyzer, as a result there is not enough data for the month to report
- Data for February 7, 8, 12 and 14 has been excluded for all sites due to very high winds 

Complaints: Complaints for February are not included due to migration to the new 311 software platform.

The Chicago Department of Aviation provides monthly reports to O’Hare Noise Compatibility Commission members based on the Airport Noise Management System (ANMS). The ANMS is a comprehensive system designed to provide actual measurement of the aircraft noise levels in Chicago neighborhoods and suburban communities near O’Hare Airport.

The ANMS integrated system includes many components including a network of 32 permanent noise monitors that measure the noise environment. The system directly connects to the FAA’s air traffic control radar that collects aircraft flight tracks. More than 5 million data points are recorded and stored by the system each day.

At the direction of the ONCC, the ANMS and report compilation methodology were independently verified by an aircraft noise expert.

Installed in 1996, the Airport Noise Management System (ANMS) records noise events that are summarized by month in four categories: Runway Use, Aircraft Noise, Aircraft Fleet Mix, and Noise Complaints.

Data from Permanent Noise Monitors and/or Long-term Portable Monitors does not determine eligibility for residential or school sound insulation.

The Chicago Department of Aviation and ONCC use ANMS data to facilitate development and management of noise mitigation programs at O’Hare.

Folder ANMS Reports
Folder Runway Use Reports
Folder Aircraft Noise Reports
Folder Aircraft Fleet Mix Reports
Folder Noise Complaint Reports
Folder Noise Complaint Locations