Portable Noise Monitor Report Chicago O Hare International Airport Site 2114 5516 N. Neenah Avenue, Chicago July 12, 217 through August 9, 217 USH5-ILH19-ILS1-CHI45 Visit the O Hare Noise webpage on the Internet at www.flychicago.com/ordnoise
Portable Noise Monitor Report City of Chicago Department of Aviation Portable Noise Monitor Report Chicago O Hare International Airport Site 2114 deployed at 5516 N. Neenah Avenue, Chicago July 12, 217 through August 9, 217 Report Descriptions 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 O Hare 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 44 noise monitors around O Hare and Midway, Federal Aviation Administration (FAA) radar data, weather data and noise complaints. Over 15, flights and 4, noise events are recorded by the ANMS each month for the Chicago Department of Aviation (CDA). The City of Chicago and the O Hare and Midway Noise Compatibility Commission utilize data from the ANMS to facilitate the development and management of noise abatement programs at the Airport. The purpose of the portable noise monitors is to provide aircraft noise information at specific residences that may be of interest to citizens living around the airport. The City also uses this data to supplement the noise data measured by the permanent sites. The following paragraphs summarize pertinent information from the data collected at the portable noise monitoring site. Description of Noise Monitoring Location The noise monitor was placed at 5516 N. Neenah Avenue, Chicago between July 12 and August 9, 217. The monitor was located approximately 6.2 miles east from the center of the airport, as shown Chicago Department of Aviation Page 1 Printed September 217
Portable Noise Monitor Report on the vicinity map on page 4. The operations that primarily affected this location during the monitoring period were Arrivals on Runway 27L as shown on the map on page 13. Runway Use Reports O Hare has eight runways that are all utilized at different times depending primarily 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 purposes. The Runway Use Report presents the average daily runway use and the percentage of use for each runway. The percentage of use of each runway is also shown graphically at the bottom of the page for departures and arrivals separately. Noise Level Reports The Noise Level Reports summarize measurement results at the noise monitoring site. The data presented summarizes the noise levels and the individual measured aircraft events. The noise data presents the measured noise during the period of the measurements for aircraft, community and total noise in Day-Night Average Sound Levels (DNL s). DNL is a 24-hour time-averaged sound exposure level with a 1 decibel (db) nighttime (1 p.m. to 7 a.m.) weighting to account for the lower background noise levels during the nighttime hours. Aircraft noise is noise attributable to aircraft operating at O'Hare. Community noise is noise from all other sources such as highways, railroads as well as background noise. Total noise is both sources combined logarithmically. The relative noise level of each of these sources is also shown graphically in this report. The daily aircraft noise level varies from day to day. This is primarily because different runways are used under different wind conditions which affect where the aircraft fly. The daily noise levels measured, while this monitor was at this location, are only a short sample and are indicative of the levels during the time period when the monitor was installed. The measured noise levels in this report are not necessarily representative of the noise level on an annual basis, nor are they used to determine eligibility for the Residential Sound Insulation Program. Chicago Department of Aviation Page 2 Printed September 217
Portable Noise Monitor Report The average number of measured aircraft events per day is also summarized in the table for each site. This includes a summary of all measured aircraft events as well as the number of noise level events above 85 db. The total measured aircraft events are also shown graphically in the table on page 1. Top Noise Level Reports The 25 loudest aircraft noise events, while the monitor was at this location, are shown in the attached report with the highest event presented at the top. This report lists the date and time of the noise event, the noise level of the event and the type of aircraft that was identified as causing that event. The noise data presented for each aircraft event is the L max. The L max is the maximum or peak level that the noise reached during the aircraft overflight. When comparing Aircraft Noise Levels to other everyday sounds the L max is the appropriate measure to use. Operational information includes which runway the aircraft used, if it was a departure or arrival (D or A), the airline, and the aircraft type. FAR Part 36 is a government regulation that certifies the noise levels of different aircraft types with Stage 2 generally being the louder aircraft and Stage 3 the quieter aircraft. All louder Stage 2 aircraft weighing more than 75, lbs. were phased out of operation after December 31, 1999. The data shows that the aircraft that generated the highest noise events were usually departures by MD8 s (McDonnell Douglas MD-8). Aircraft Operations within the Vicinity of the Noise Monitor The map on page 13 shows a graphical representation of traffic that flew within the vicinity of the monitoring location. A virtual gate was established to extend one mile on either side of the monitoring location. The day that presented the highest daily level of aircraft noise for the monitoring period was chosen to display. Green tracks represent aircraft that departed O Hare and red tracks represent arrivals that flew within the vicinity of the monitoring location. Also included in the analysis is a penetration plot showing the altitudes of the aircraft that flew through the established gate. Chicago Department of Aviation Page 3 Printed September 217
Runway Use Report Period: July 12, 217 to August 9, 217 Time of Day: All Hours Runway Use (All Hours) Source: Airport Noise Management System (ANMS) Runway Utilization 4L 4R 9L 9R 1L 1C 1R 15 22L 22R 27L 27R 28L 28C 28R 33 Average Daily Operations Departures 6 313 28 2 1 234 4 414 14 Arrivals 3 29 4 12 274 88 3 3 11 27 182 195 13 n/a Percentage Utilization Departures 1% % % 25% 22% % % % 18% % % % % % 33% 1% Arrivals % % 17% % 1% 22% 7% % % 1% 21% 14% % 16% 1% % 4% Departures 4% Arrivals 3% 3% 2% 2% 1% 1% % % Percentage Departure Utilization Percentage Arrival Utilization #R 1 # 1 17 14 1 25 21 33 22 1 1 22 16 7 # # 18 Chicago Department of Aviation Page 5 Printed September 217
Noise and Aircraft Events Report Period: July 12, 217 to August 9, 217 Site: 2114-5516 N. Neenah Avenue Day Measured DNL Aircraft Community Total Aircraft Noise Events Daily Loud Events Events >85 Lmax Jul 12 61.9 66.9 68.1 353 Jul 13 61.4 62.3 64.9 561 Jul 14 61.8 61.6 64.7 548 Jul 15 62.9 62.4 65.7 523 Jul 16 59.5 62.9 64.5 25 Jul 17 6.5 62.5 64.6 229 Jul 18 61.9 61.2 64.6 56 Jul 19 6.8 62.6 64.8 348 Jul 2 6.1 63.7 65.3 324 Jul 21 63.4 61.6 65.6 314 Jul 22 62.1 63.9 66.1 419 Jul 23 63.5 62.2 65.9 512 Jul 24 62.2 62.1 65.2 263 Jul 25 61.8 61.1 64.5 223 Jul 26 63.7 58.7 64.9 642 Jul 27 6.8 61.2 64. 28 Jul 28 6.5 62.7 64.7 262 Jul 29 61.2 61.7 64.5 235 Jul 3 6.6 6.4 63.5 255 Jul 31 61.7 61. 64.3 49 Aug 1 61. 6.7 63.8 395 Aug 2 59.8 6.3 63.1 46 Aug 3 63.6 62.1 65.9 331 Aug 4 64.8 64.1 67.6 552 Aug 5 63.6 63.3 66.5 51 Aug 6 62.5 61.6 65.1 354 Aug 7 61.2 61.4 64.3 27 Aug 8 62.8 62.9 65.8 547 Aug 9 62.1 61.8 65. 482 Average DNL Average Average Aircraft Community Total All Events >85 Lmax 62. 62.4 65.2 393 Note: Total DNL represents the logarithmic sum of Aircraft and Community noise. Chicago Department of Aviation Page 6 Printed September 217
Hourly Noise Level Report Period: July 12, 217 to August 9, 217 Site: 2114-5516 N. Neenah Avenue Metric: Aircraft Noise Events Date Hour Of The Day 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 Count Jul 12 1 1 4 3 4 5 16 1 25 32 38 4 37 34 19 36 24 24 353 Jul 13 9 1 1 8 2 35 3 32 33 37 35 31 37 29 34 33 44 45 42 17 1 7 561 Jul 14 3 1 3 11 33 42 35 29 37 37 4 34 4 35 29 34 39 35 27 1 3 548 Jul 15 4 3 1 21 19 35 27 3 37 34 34 35 34 26 38 4 36 37 17 15 523 Jul 16 1 1 3 19 9 1 11 14 11 16 8 13 12 12 11 15 15 4 11 9 25 Jul 17 3 1 2 4 23 13 15 9 13 11 1 13 9 14 7 12 13 18 1 17 12 229 Jul 18 2 4 1 1 16 26 41 38 3 36 34 3 31 35 3 28 37 41 37 3 23 8 1 56 Jul 19 1 1 14 34 4 32 24 34 24 12 12 11 21 1 15 18 17 12 11 5 348 Jul 2 1 1 9 2 1 2 13 35 34 35 29 32 25 1 12 16 13 2 13 12 324 Jul 21 6 1 3 1 2 13 32 34 16 11 13 12 14 14 12 16 3 1 14 19 11 1 12 26 314 Jul 22 13 1 1 2 5 21 3 17 14 24 32 34 28 31 3 34 34 28 16 8 18 19 6 419 Jul 23 1 34 34 6 25 39 39 38 31 33 33 12 4 19 31 42 38 25 19 512 Jul 24 7 5 1 4 2 17 11 15 11 6 13 11 13 12 15 13 22 15 14 17 11 1 263 Jul 25 6 2 2 1 4 23 18 13 6 1 5 8 13 12 1 1 1 14 13 9 17 7 1 223 Jul 26 5 2 1 26 31 4 31 3 35 35 39 3 36 3 34 32 4 42 38 36 17 23 642 Jul 27 7 1 1 11 4 19 19 16 11 17 9 12 21 2 16 16 7 15 2 11 12 1 5 28 Jul 28 3 2 2 1 1 3 17 14 16 12 13 12 14 1 18 15 18 12 15 17 11 18 12 6 262 Jul 29 8 1 1 8 19 17 13 14 7 2 14 14 11 8 12 11 13 18 9 19 12 4 235 Jul 3 5 2 2 6 14 15 11 12 8 1 15 17 12 15 19 12 2 19 12 15 13 1 255 Jul 31 2 1 3 26 23 42 33 26 41 37 34 29 34 31 29 25 22 15 9 16 7 5 49 Aug 1 4 1 1 16 26 39 31 1 32 25 3 24 32 24 9 8 3 44 17 1 395 Aug 2 17 13 38 31 24 38 35 33 27 35 3 28 17 3 15 7 8 4 3 46 Aug 3 4 2 5 2 8 33 36 33 29 32 35 16 18 19 3 1 24 31 331 Aug 4 32 1 3 1 1 22 26 31 13 21 33 39 37 35 3 34 38 45 37 35 29 5 4 552 Aug 5 2 12 29 39 31 19 26 31 35 26 33 26 28 31 44 37 3 14 13 4 51 Aug 6 1 1 1 1 1 15 31 36 32 28 36 16 15 12 21 11 12 8 17 15 1 9 12 13 354 Aug 7 6 2 1 1 5 28 13 15 9 14 1 11 11 14 24 16 17 16 16 9 15 13 4 27 Aug 8 4 2 1 1 27 37 31 3 34 37 29 28 36 31 29 35 34 41 28 33 1 547 Aug 9 2 1 18 26 38 32 28 38 32 36 28 31 39 34 13 21 16 6 18 11 14 482 Average 5 1 1 1 2 9 23 26 23 18 24 24 24 21 24 23 22 2 24 24 18 17 11 8 393 Aircraft Noise Events are described on page 2 of this report. Chicago Department of Aviation Page 7 Printed September 217
Hourly Noise Level Report Period: July 12, 217 to August 9, 217 Site: 2114-5516 N. Neenah Avenue Metric: Aircraft Leq Date Hour Of The Day 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2 21 22 23 DNL Jul 12 51 41 54 51 47 51 59 58 59 62 62 62 62 62 6 62 6 6 62 Jul 13 56 4 38 53 59 61 61 62 61 61 6 61 61 6 61 61 62 61 62 58 39 48 61 Jul 14 46 4 43 53 61 63 62 62 63 61 61 61 62 6 61 6 61 61 6 37 45 62 Jul 15 43 44 4 62 58 61 61 62 61 61 61 62 66 6 63 61 64 62 59 59 63 Jul 16 39 41 53 59 55 56 56 57 55 57 54 56 58 6 58 58 57 52 57 56 59 Jul 17 54 42 53 49 58 55 58 61 55 55 55 59 56 55 56 61 6 59 57 59 58 6 Jul 18 55 49 37 46 56 6 61 61 59 61 59 62 6 6 6 61 6 6 6 6 59 55 37 62 Jul 19 41 41 57 61 61 6 59 61 59 56 57 55 58 56 57 59 57 59 56 52 61 Jul 2 42 45 58 39 55 47 58 62 62 6 6 59 59 54 57 57 59 59 58 53 6 Jul 21 56 46 54 44 51 55 6 61 57 56 56 55 57 57 56 57 61 41 56 57 57 44 57 63 63 Jul 22 59 37 41 4 52 58 48 62 57 61 6 6 59 61 6 6 61 59 59 59 59 59 54 62 Jul 23 56 61 61 51 59 61 66 61 6 6 59 57 45 59 62 64 61 6 6 63 Jul 24 58 49 52 52 61 58 56 57 56 56 57 56 57 56 58 56 61 6 55 58 57 56 62 Jul 25 54 56 51 51 52 6 57 54 53 55 53 54 56 55 56 57 59 57 56 55 6 52 59 62 Jul 26 53 47 57 59 6 61 6 59 6 61 61 59 6 6 6 6 61 62 62 61 58 59 64 Jul 27 54 4 47 57 53 58 58 57 55 58 55 57 59 57 58 59 57 58 59 56 54 56 5 61 Jul 28 51 55 5 43 43 5 58 56 55 56 56 54 56 56 59 59 59 55 61 58 57 58 56 53 6 Jul 29 57 54 41 56 6 57 57 59 52 47 56 57 58 54 57 55 57 59 57 58 55 49 61 Jul 3 57 52 45 53 56 55 55 55 55 56 58 59 56 56 6 57 6 61 57 57 57 48 61 Jul 31 42 4 45 58 59 62 6 59 62 6 6 6 6 6 59 59 61 57 59 58 56 51 62 Aug 1 56 36 5 57 59 61 61 38 61 59 6 6 62 59 53 53 59 62 6 39 61 Aug 2 57 55 61 61 59 61 6 6 59 61 59 6 56 54 59 58 56 51 5 6 Aug 3 56 47 54 48 53 6 6 61 6 6 6 57 59 58 53 4 6 62 64 Aug 4 64 43 45 46 5 61 64 63 62 63 64 64 63 65 64 62 63 63 62 62 62 53 46 65 Aug 5 43 57 62 62 62 58 6 61 61 6 63 63 7 61 62 64 6 59 58 46 64 Aug 6 41 41 39 4 37 58 6 61 61 6 61 57 58 57 59 55 57 54 58 6 56 55 58 6 62 Aug 7 57 53 41 39 52 6 56 58 54 57 57 56 57 57 59 62 57 59 6 55 57 55 5 61 Aug 8 55 42 51 56 6 61 62 61 61 6 64 63 64 61 61 64 65 65 62 61 4 63 Aug 9 41 36 57 6 61 61 59 62 6 6 6 6 61 61 58 6 59 54 59 55 58 62 Energy Average 55 46 47 43 47 55 59 6 6 59 6 6 6 59 6 6 61 59 6 6 59 58 56 56 62 Note: ## is aircraft events above 65 db daytime (7 a.m. - 1 p.m.) or 55 db nighttime (1 p.m. - 7 a.m.) Chicago Department of Aviation Page 8 Printed September 217
Noise Level Graph Report (DNL) Period: July 12, 217 to August 9, 217 Site: 2114-5516 N. Neenah Avenue Aircraft, Community and Total DNL Aircraft Community Total 75 7 Decibels (dba) 65 6 55 5 45 12 13 14 15 16 17 18 19 2 21 22 23 24 25 26 27 28 29 3 31 1 2 3 4 5 6 Day Of The Month Chicago Department of Aviation Page 9 Printed September 217
Aircraft Noise Events Graph Report (Lmax) Period: July 12, 217 to August 9, 217 Site: 2114-5516 N. Neenah Avenue 16 Total Number of Measured Aircraft Noise Events 14 12 Number of Events 1 8 6 4 2 2 31 42 53 64 75 86 97 18 dba Max Noise Levels Chicago Department of Aviation Page 1 Printed September 217
Loudest Aircraft Noise Events Report Period: July 12, 217 to August 9, 217 Site: 2114-5516 N. Neenah Avenue Aircraft Airline Event Time Aircraft Stage Ops 1 Rwy Lmax Graph Of Lmax Jul 21, 23:3 B748 3 D 1L 84.4 Jul 24, 19:5 MD83 3 D 9R 84.1 Aug 4, 15:2 E45X 3 A 27L 83.9 Jul 15, 17:11 B738 3 A 27L 82.9 Jul 15, 15:14 A32 3 A 27L 82.8 Jul 17, 18:45 MD83 3 D 9R 82.8 Jul 17, 19:49 MD83 3 D 9R 82.6 Aug 1, 8:38 MD83 3 A 27L 82.6 Jul 15, 6:16 MD88 3 D 9R 82.3 Aug 4, 14:52 B77W 3 A 28C 82.3 Jul 25, 6:9 MD88 3 D 9R 82.2 Aug 5, 19:4 E75L 3 A 27L 82.1 Jul 28, 18:38 MD82 3 D 9R 82.1 Jul 17, 8:33 MD83 3 D 9R 81.9 Aug 5, 19:45 A321 3 A 27L 81.7 Jul 29, 14:17 B744 3 D 1L 81.6 Jul 15, 6:3 MD88 3 D 9R 81.4 Jul 25, 1:53 B744 3 D 1L 81.4 Jul 3, 19:16 MD83 3 D 9R 81.4 Jul 16, 17:59 B744 3 D 1L 81.3 Aug 5, 14:56 E145 3 A 27L 81.2 Jul 21, 16:5 MD83 3 A 27L 81.1 Aug 9, 21:5 B744 3 D 1L 81.1 Jul 29, 6:12 MD88 3 D 9R 81. Jul 18, 12:26 B738 3 A 27L 81. 75 85 95 1 "D" represents departures, "A" represents arrivals. Chicago Department of Aviation Page 12 Printed September 217
Gate Location Report Period: August 4, 217 Operations: Arrivals and Departures Site: 2114-5516 N. Neenah Avenue Summary Arrivals: 555 Operations Left of Center: 1 (2%) Source: Airport Noise Management System (ANMS) Chicago Department of Aviation Departures: : Left Boundary of Gate Page 13 Total Operations: 555 Operations Right of Center: 545 (98%) : Center of Gate : Right Boundary of Gate Printed September 217
Aircraft Altitude Report Period: August 4, 217 Operations: Arrivals and Departures Site: 2114-5516 N. Neenah Avenue Arrivals: 555 Operations Left of Center: 1 (2%) Summary Departures: Total Operations: 555 Operations Right of Center: 545 (98%) 5, 4, Above Airport Elevation (feet) 3, 2, 1, -1. -.8 -.6 -.4 -.2..2.4.6.8 1. Deviation From Center of Gate (miles) Note: Airport elevation is based on published aeronautical charts Source: Airport Noise Management System (ANMS) Chicago Department of Aviation Page 14 Printed September 217
O Hare Noise Hotline: 1-8-435-9569 www.flychicago.com/ordnoise