Airport Noise Management System Quarterly Report City of Chicago Department of Aviation 3rd Quarter 2008 July, August and September Visit the Community Resource Center on the Internet at www.flychicago.com
City of Chicago Department of Aviation Airport Noise Management System Quarterly Report Background Installed in 1996, the Airport Noise Management System (ANMS) enables the City of Chicago to monitor the amount of noise being generated over the communities surrounding Midway by the aircraft operating at the Airport. The ANMS collects, analyzes and processes data from a number of sources of information including a network of 42 noise monitors (12 around Midway), FAA radar data, weather information and calls to the noise hotline. Records on over 120,000 flights and 400,000 noise events are recorded by the ANMS each month for the Chicago Airport System. The City of Chicago and the Midway Noise Compatibility Commission utilize data from the ANMS to facilitate the development and management of noise mitigation and abatement programs at the Airport. The following reports summarize pertinent monthly information from that data concerning the noise levels and operations at the Airport. Fleet Mix Summary Report The Fleet Mix report summarizes the number and type of aircraft operating at Midway International Airport. The report is summarized in four ways: fleet mix for each airline during all hours of the day; fleet mix for each airline during the nighttime hours (10PM to 7AM); fleet mix for each aircraft type during all hours of the day and fleet mix of each aircraft type during the nighttime hours. This report displays the average fleet mix at Midway from July through the end of September 2008. In 1990, Congress enacted legislation to eliminate all Stage 2 aircraft operating in the continental United States by the year 2000. A program was created to "phaseout" the older, louder Stage 2 aircraft over a ten-year period to achieve full compliance by the 2000 deadline. As of January 2000, all aircraft operating at Midway Airport and within the United States were Stage 3. Stage 3 aircraft, such as the Boeing 757 (B757) and newer Boeing 737's (B737) use a quieter type of engine that significantly reduces noise at the source. Also, a Stage 3 aircraft can be a previous Stage 2 aircraft with the engines retrofitted with a "Hush-kit", such as the Boeing 727 (B72Q), Boeing 737-200 (B73Q) and DC-9 (DC9Q). Monthly Runway Use Report The runways at Midway are utilized at different times primarily depending upon the prevailing wind conditions on the airfield, as well as any runway maintenance. Aircraft performance requirements make it necessary for aircraft to depart and land into the wind for safety reasons. City of Chicago Department of Aviation Page 1
The Runway Use Report presents the average number of daily operations on each runway and the percentage of use for each runway. The percentage of use for each runway is shown graphically for departures and arrivals. This data is for all hours of the day and night and for all aircraft types in July, August and September 2008. Annual Noise Level Report The Annual Noise Level Reports summarizes measurement results from each of the 12 noise monitors located around the airport. The data presented displays the Day Night Average Noise Levels (DNL). DNL is a daily noise metric that sums all of the noise that takes place throughout the day. It measures the loudness of the noise events, the number of events and also weights nighttime noise (10 pm to 7 am) by a factor of 10 to account for the lower background noise levels during the nighttime hours. The data displays the measured aircraft DNL for each month, each quarter and the year-to-date measurement. Aircraft noise is noise associated with known aircraft operations at Midway. The quarterly noise levels for each site are shown graphically on the second page of the report. The daily aircraft DNL noise level varies from day to day. This is primarily because different runways are used under different wind conditions; which effects where the aircraft fly. The daily aircraft DNL for each day of the month between July and September are shown graphically for each noise monitoring location around Midway. Also shown are the monthly average number of noise events, by noise level, for each location between July and September. Noise Complaint Reports The Department of Aviation maintains a noise complaint hotline for citizen complaints to express their concern about particular incidents or aircraft noise levels in general. The noise complaint report summarizes the number of noise complaints received, where the complaints were located and the nature of the disturbance. The tabular report lists the number of calls by community as well as the number of individual callers during July, August and September. The graph at the bottom of the page illustrates the primary nature of the disturbance that the caller identified. The second page of the report graphically illustrates on a map where the calls were located. City of Chicago Department of Aviation Page 2
Airline Jet Fleet Mix Summary Report Chicago Midway Airport Period: July 2008 to September 2008 Time of Day: Operations for All Hours of the Day Airline Daily Jet Operations Percentage of Total Stage Stage Total Percent 2 3 of Total Continental Express BTA -- 0.2 0.2 0% Continental Airlines COA -- 0.1 0.1 0% Comair, Inc. COM -- 2.2 2.2 0% Frontier FFT -- 11.5 11.5 2% Northwest Airlines NWA -- 4.8 4.8 1% Southwest Airlines SWA -- 449.6 449.6 85% Shuttle America TCF -- 28.1 28.1 5% Air Trans TRS -- 26.3 26.3 5% Other Airlines -- 8.6 8.6 2% Airport Total 0 531 531 City of Chicago Department of Aviation Page 3 Printed 10/13/2008
Aircraft Jet Fleet Mix Summary Report Chicago Midway Airport Period: July 2008 to September 2008 Time of Day: Operations for All Hours of the Day Jet Aircraft Operations Percentage of Total FAR 36 Average Percent Stage Per Day of Total B717 3 17.7 3.3% B72Q 3 0.1 0.0% B737 3 454.6 85.6% B757 3 0.2 0.0% CRJ1 3 0.0 0.0% CRJ2 3 0.4 0.1% CRJ7 3 2.7 0.5% DC9Q 3 0.9 0.2% E135 3 0.5 0.1% E145 3 0.2 0.0% E170 3 37.6 7.1% A320 3 15.6 2.9% MD80 3 0.5 0.1% Other Aircraft 3 0.0 0.0% Stage 2 0 0.0% Stage 3 531 100.0% Total 531 City of Chicago Department of Aviation Page 4 Printed 10/13/2008
Airline Jet Fleet Mix Summary Report Chicago Midway Airport Period: July 2008 to September 2008 Time of Day: Nighttime Operations (10pm to 7am) Airline Daily Jet Operations Percentage of Total Stage Stage Total Percent 2 3 of Total Continental Express BTA -- 0.0 0.0 0% Continental Airlines COA -- 0.0 0.0 0% Comair, Inc. COM -- 0.0 0.0 0% Frontier FFT -- 2.6 2.6 5% Northwest Airlines NWA -- 1.0 1.0 2% Southwest Airlines SWA -- 47.7 47.7 84% Shuttle America TCF -- 2.1 2.1 4% Air Trans TRS -- 2.9 2.9 5% Other Airlines -- 0.3 0.3 1% Airport Total 0 57 57 City of Chicago Department of Aviation Page 5 Printed 10/13/2008
Aircraft Jet Fleet Mix Summary Report Chicago Midway Airport Period: July 2008 to September 2008 Time of Day: Nighttime Operations (10pm to 7am) Jet Aircraft Operations Percentage of Total FAR 36 Average Percent Stage Per Day of Total B717 3 1.5 2.6% B72Q 3 0.0 0.1% B737 3 49.2 86.9% B757 3 0.1 0.1% CRJ1 3 0.0 0.0% CRJ2 3 0.0 0.0% CRJ7 3 0.0 0.0% DC9Q 3 0.0 0.1% E135 3 0.0 0.1% E145 3 0.0 0.1% E170 3 2.1 3.7% A320 3 3.6 6.3% MD80 3 0.0 0.1% Other Aircraft 3 0.0 0.0% Stage 2 0 0.0% Stage 3 57 100.0% Total 57 City of Chicago Department of Aviaiton Page 6 Printed 10/13/2008
Runway Use Summary Report (All Hours) Period: July 2008 Time of Day: All Hours Runway Utilization (All Hours) Source: Airport Noise Management System (ANMS) Runway Utilization (All Hours) Runway 04L &04R 13C 22L & 22R 31C Flight Direction NE SE SW NW Average Daily Operations Departures 60 3 102 173 Arrivals 66 3 85 183 Percentage Utilization Departures 18% 1% 30% 51% Arrivals 20% 1% 25% 54% Departures (All Hours) Arrivals (All Hours) 80% 70% 60% 50% 40% 30% 20% 10% 0% 04L &04R 13C 22L & 22R 31C 80% 70% 60% 50% 40% 30% 20% 10% 0% 04L &04R 13C 22L & 22R 31C Percentage Departure Utilization Percentage Arrival Utilization 51 18 1 25 13C 22R 22L 13C 22R 22L 04L 04L 30 04R 31C 1 04R 31C 20 54 City of Chicago Department of Aviation Page 7 Printed 10/13/2008
Runway Use Summary Report (All Hours) Period: August 2008 Time of Day: All Hours Runway Utilization (All Hours) Source: Airport Noise Management System (ANMS) Runway Utilization (All Hours) Runway 04L &04R 13C 22L & 22R 31C Flight Direction NE SE SW NW Average Daily Operations Departures 144 3 54 138 Arrivals 155 3 44 140 Percentage Utilization Departures 42% 1% 16% 41% Arrivals 45% 1% 13% 41% Departures (All Hours) Arrivals (All Hours) 80% 70% 60% 50% 40% 30% 20% 10% 0% 04L &04R 13C 22L & 22R 31C 80% 70% 60% 50% 40% 30% 20% 10% 0% 04L &04R 13C 22L & 22R 31C Percentage Departure Utilization Percentage Arrival Utilization 41 42 1 13 13C 22R 22L 13C 22R 22L 04L 04L 16 04R 31C 1 04R 31C 45 41 City of Chicago Department of Aviation Page 8 Printed 10/13/2008
Runway Use Summary Report (All Hours) Period: September 2008 Time of Day: All Hours Runway Utilization (All Hours) Source: Airport Noise Management System (ANMS) Runway Utilization (All Hours) Runway 04L &04R 13C 22L & 22R 31C Flight Direction NE SE SW NW Average Daily Operations Departures 122 8 62 151 Arrivals 142 7 46 150 Percentage Utilization Departures 36% 2% 18% 44% Arrivals 41% 2% 13% 44% Departures (All Hours) Arrivals (All Hours) 80% 70% 60% 50% 40% 30% 20% 10% 0% 04L &04R 13C 22L & 22R 31C 80% 70% 60% 50% 40% 30% 20% 10% 0% 04L &04R 13C 22L & 22R 31C Percentage Departure Utilization Percentage Arrival Utilization 44 36 2 13 13C 22R 22L 13C 22R 22L 04L 04L 18 04R 31C 2 04R 31C 41 44 City of Chicago Department of Aviation Page 9 Printed 10/13/2008
Annual Airport Noise Report Summary (Aircraft DNL) Period: January 2008 to December 2008 Metric: Aircraft DNL Neighborhood: All Sites RMS Community Monthly Noise Levels Quarterly Noise Levels Year 2007 # Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1Q 2Q 3Q 4Q to Annual Date 301 Cicero 50.6 49.2 50.5 50.8 52.0 53.5 52.9 53.2 52.9 50.1 52.2 53.0 51.9 53.4 302 Chicago 68.7 65.8 70.9 70.7 70.4 69.1 67.9 68.8 68.8 68.9 70.1 68.5 69.2 70.2 303 Chicago 57.1 64.7 66.3 62.8 64.7 68.2 68.7 68.9 67.6 64.1 65.5 68.4 66.5 66.3 304 Chicago 71.5 67.8 70.8 72.6 67.8 72.0 -- -- 73.2 70.3 70.8 73.2 71.2 73.7 305 Chicago 57.0 57.5 58.4 57.2 57.5 59.5 59.4 58.8 58.5 57.7 58.2 58.9 58.3 58.6 306 Chicago 68.0 68.8 68.7 67.3 68.6 71.0 71.4 70.3 61.9 68.5 69.2 69.4 69.1 67.8 308 Chicago 64.6 64.2 63.4 62.1 62.3 64.8 65.1 64.3 63.6 64.1 63.2 64.4 63.9 63.7 309 Burbank 48.5 44.6 44.8 45.3 44.1 44.7 44.3 44.0 43.6 46.4 44.7 44.0 45.1 54.4 310 Bridgeview 57.4 58.6 61.2 60.7 62.2 60.2 58.2 60.2 60.5 59.3 61.3 59.7 60.1 60.7 311 Summit 59.7 59.2 58.1 63.2 58.7 --- 57.0 54.2 55.3 59.0 61.5 55.7 59.0 57.1 312 Stickney 51.4 48.1 48.6 50.4 49.9 53.3 52.2 51.5 50.1 49.6 51.4 51.3 50.9 50.4 313 Chicago 53.3 56.9 61.4 59.5 60.6 55.4 56.9 59.4 59.4 58.4 59.0 58.7 58.7 59.9 City of Chicago Department of Aviation Page 11 Printed 10/13/2008
Annual Airport Noise Report Summary (Aircraft DNL) Period: January 2008 to December 2008 Metric: Aircraft DNL Neighborhood: All Sites 1Q 2Q 3Q 4Q YTD 80 75 70 65 60 55 DNL Noise Level 50 45 40 313 - Chicago 312 - Stickney 311 - Summit 310 - Bridgeview 309 - Burbank 308 - Chicago 306 - Chicago 305 - Chicago 304 - Chicago 303 - Chicago 302 - Chicago 301 - Cicero City of Chicago Department of Aviation Page 12 Printed 10/13/2008
Quarterly Noise Complaint Report July 2008 through September 2008 Quarterly Hotline Calls by Community¹ Source: Airport Noise Management System (ANMS) Total Number Community Calls of Callers Total Calls Chicago 34 15 Cicero 1 1 Dolton 18 1 Downers Grove 19 1 Westmont 1 1 0 5 10 15 20 25 30 35 3rd Quarter 2008 Total 73 19 3rd Quarter 2007 Total 43 13 Nature of Hotline Call Noise Complaint Source: Airport Noise Management System (ANMS) \ Nature of Complaint Total Percent Calls Low Flying 3 4% Frequency of Operations 0 0% Vibration 0 0% Not Reported 70 96% Total 73 Not Reported Vibration Frequency of Operation Low Flying 1 Complaint calls made within the State of Illinois. City of Chicago Department of Aviation Page 13 Printed 10/13/2008
Monthly Noise Complaint Report July 2008 through September 2008 Location of Monthly Hotline Calls Legend Location of Noise Complaint City of Chicago Department of Aviation Page 14 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 301 - Cicero Aircraft DNL Noise Levels 70.0 65.0 60.0 DNL Noise Levels 55.0 50.0 45.0 40.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 15 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 302 - Chicago Aircraft DNL Noise Levels 85.0 80.0 75.0 DNL Noise Levels 70.0 65.0 60.0 55.0 50.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 16 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 303 - Chicago Aircraft DNL Noise Levels 80.0 75.0 70.0 DNL Noise Levels 65.0 60.0 55.0 50.0 45.0 40.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 17 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 304 - Chicago Aircraft DNL Noise Levels 85.0 80.0 75.0 DNL Noise Levels 70.0 65.0 60.0 55.0 50.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 18 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 305 - Chicago Aircraft DNL Noise Levels 80.0 75.0 70.0 DNL Noise Levels 65.0 60.0 55.0 50.0 45.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 19 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 306 - Chicago Aircraft DNL Noise Levels 85.0 80.0 75.0 DNL Noise Levels 70.0 65.0 60.0 55.0 50.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 20 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 308 - Chicago Aircraft DNL Noise Levels 85.0 80.0 75.0 DNL Noise Levels 70.0 65.0 60.0 55.0 50.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 21 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 309 - Burbank Aircraft DNL Noise Levels 70.0 65.0 60.0 DNL Noise Levels 55.0 50.0 45.0 40.0 35.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 22 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 310 - Bridgeview Aircraft DNL Noise Levels 80.0 75.0 70.0 DNL Noise Levels 65.0 60.0 55.0 50.0 45.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 23 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 311 - Summit Aircraft DNL Noise Levels 85.0 80.0 75.0 DNL Noise Levels 70.0 65.0 60.0 55.0 50.0 45.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 24 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 312 - Stickney Aircraft DNL Noise Levels 70.0 65.0 60.0 DNL Noise Levels 55.0 50.0 45.0 40.0 35.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 25 Printed 10/13/2008
Periodic Site Noise Report (Aircraft DNL) Period: July 1, 2008 through September 30, 2008 313 - Chicago Aircraft DNL Noise Levels 80.0 75.0 70.0 DNL Noise Levels 65.0 60.0 55.0 50.0 45.0 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-Sep 9-Sep 16-Sep 23-Sep 30-Sep City of Chicago Department of Aviation Page 26 Printed 10/13/2008
Quarterly Noise Event Histogram Report July 1, 2008 through September 30, 2008 301 - Cicero and 302 - Chicago 301 - Cicero Average Monthly Measured Aircraft Noise Events 200 180 160 140 120 100 80 60 40 20 0 302 - Chicago Average Monthly Measured Aircraft Noise Events 2000 1800 1600 1400 1200 1000 800 600 400 200 0 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 76 78 80 82 84 86 88 90 92 94 96 Number of Events 98 100 102 104 106 108 110 112 114 116 SEL Noise Level Number of Events SEL Noise Level City of Chicago Department of Aviation Page 27 Printed 10/13/2008
Quarterly Noise Event Histogram Report July 1, 2008 through September 30, 2008 Chicago -303 and Chicago - 304 Chicago -303 Average Monthly Measured Aircraft Noise Events 250 200 150 100 50 0 Chicago - 304 Average Monthly Measured Aircraft Noise Events 180 160 140 120 100 80 60 40 20 0 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 75 77 79 81 83 85 Number of Events 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 SEL Noise Level Number of Events SEL Noise Level City of Chicago Department of Aviation Page 28 Printed 10/13/2008
Quarterly Noise Event Histogram Report July 1, 2008 through September 30, 2008 305 - Chicago and 306 - Chicago 305 - Chicago Average Monthly Measured Aircraft Noise Events 600 500 400 300 200 100 0 306 - Chicago Average Monthly Measured Aircraft Noise Events 1800 1600 1400 1200 1000 800 600 400 200 0 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 75 77 79 81 83 85 87 Number of Events 89 91 93 95 97 99 101 103 105 107 109 111 113 115 SEL Noise Level Number of Events SEL Noise Level City of Chicago Department of Aviation Page 29 Printed 10/13/2008
Quarterly Noise Event Histogram Report July 1, 2008 through September 30, 2008 308 - Chicago and 309 - Burbank 308 - Chicago Average Monthly Measured Aircraft Noise Events 1800 1600 1400 1200 1000 800 600 400 200 0 309 - Burbank Average Monthly Measured Aircraft Noise Events 18 16 14 12 10 8 6 4 2 0 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 76 78 80 82 84 86 88 90 92 94 Number of Events 96 98 100 102 104 106 108 110 112 114 116 SEL Noise Level Number of Events SEL Noise Level City of Chicago Department of Aviation Page 30 Printed 10/13/2008
Quarterly Noise Event Histogram Report July 1, 2008 through September 30, 2008 310 - Bridgeview and 311 - Summit 310 - Bridgeview Average Monthly Measured Aircraft Noise Events 140 120 100 80 60 40 20 0 311 - Summit Average Monthly Measured Aircraft Noise Events 250 200 150 100 50 0 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109 111 113 115 75 77 79 81 83 85 87 89 Number of Events 91 93 95 97 99 101 103 105 107 109 111 113 115 SEL Noise Level Number of Events SEL Noise Level City of Chicago Department of Aviation Page 31 Printed 10/13/2008
Quarterly Noise Event Histogram Report July 1, 2008 through September 30, 2008 312 - Stickney and 313 - Chicago 312 - Stickney Average Monthly Measured Aircraft Noise Events 350 300 250 200 150 100 50 0 313 - Chicago Average Monthly Measured Aircraft Noise Events 800 700 600 500 400 300 200 100 0 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 75 77 79 81 83 85 87 89 Number of Events 91 93 95 97 99 101 103 105 107 109 111 113 115 SEL Noise Level Number of Events SEL Noise Level City of Chicago Department of Aviation Page 32 Printed 10/13/2008