Portable Noise Monitor Report Chicago O Hare International Airport Site 221 5716 N. Virginia Avenue, Chicago July 23, 214 through August 11, 214 Visit the O Hare Noise Management Webpage on the Internet at www.flychicago.com
Portable Noise Monitor Report City of Chicago Department of Aviation Portable Noise Monitor Report Chicago O Hare International Airport Site 221 deployed at 5716 N. Virginia Avenue, Chicago July 23, 214 through August 11, 214 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, 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 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 5716 N. Virginia Avenue, Chicago between July 23 and August 11, 214. The monitor is located approximately 1 miles east from the center of the airport, as shown Chicago Department of Aviation Page 1 December 214
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 summarizes 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. 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 effect 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. It is not necessarily representative of the noise level on an annual basis. Chicago Department of Aviation Page 2 December 214
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 B744 (Boeing 747-4 series). 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 December 214
Skokie Des Plaines Niles Park Ridge Lincolnwood 94 Lincoln Ave. 294 Rosemont 65 DNL Norridge Harwood Heights 9 Chicago Peterson Ave. 221 Bryn Mawr Ave. Kedzie Ave. California Ave. Legend Schiller Park 5716 N. Virginia Avenue Chicago, IL OMP Build-Out Noise Contour Community Boundaries Franklin Park Existing Runways Existing Runways to be Decommissioned River Grove Elmwood Park Future Runways Miles.5 1
Runway Use Report Period: July 23, 214 to August 11, 214 Time of Day: All Hours Runway Use (All Hours) Source: Airport Noise Management System (ANMS) Runway Utilization 4L 4R 9L 9R 1L 1C 14L 14R 22L 22R 27L 27R 28C 28R 32L 32R Average Daily Operations Departures 8 166 234 2 328 1 5 582 15 Arrivals 146 7 18 164 364 245 279 13 Percentage Utilization Departures 1% % % 12% 17% % % % 24% % % % % 43% % 1% Arrivals % % 11% 5% 1% 13% % % % % 28% 19% 21% 1% % % Departures Arrivals 7% 7% 6% 6% 5% 5% 4% 4% 3% 3% 2% 2% 1% 1% % % Percentage Departure Utilization Percentage Arrival Utilization 1 1 11 19 13 5 28 43 17 1 1 13 22 25 Chicago Department of Aviation Page 5 December 214
Noise and Aircraft Events Report Period: July 23, 214 to August 11, 214 Site: 221-5716 N. Virgina Avenue Day Measured DNL Aircraft Community Total Aircraft Noise Events Daily Loud Events Events >85 Lmax Jul 23 49.8 57.5 58.2 61 Jul 24 56.6 58.9 6.9 283 Jul 25 58.7 57.2 61. 522 Jul 26 57.2 56.1 59.7 339 Jul 27 57.9 57.7 6.8 419 Jul 28 57. 57.3 6.2 25 Jul 29 -- -- -- -- -- Jul 3 -- -- -- -- -- Jul 31 -- -- -- -- -- Aug 1 58.3 58.5 61.4 448 Aug 2 58.4 55. 6. 448 Aug 3 58.5 57. 6.8 449 Aug 4 57.1 59.3 61.4 321 Aug 5 57.5 57.6 6.5 459 Aug 6 56.7 55.7 59.2 467 Aug 7 56.9 57. 6. 2 Aug 8 56.5 62.7 63.7 17 Aug 9 52.9 54.7 56.9 96 Aug 1 54.3 54. 57.2 16 Aug 11 53.9 56.6 58.5 388 Average DNL Average Average Aircraft Community Total All Events >85 Lmax 56.8 57.7 6.3 272 --No data due to equipment malfunction. Chicago Department of Aviation Page 6 December 214
Hourly Noise Level Report Period: July 23, 214 to August 11, 214 Site: 221-5716 N. Virgina 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 23 49 39 39 4 36 47 52 4 43 5 44 38 51 47 47 47 43 46 43 46 5 Jul 24 32 43 54 52 54 58 56 45 42 44 4 48 45 52 56 56 56 56 55 38 47 4 57 Jul 25 42 45 37 4 48 49 52 58 58 57 55 57 58 58 57 57 55 57 56 55 55 57 56 55 59 Jul 26 47 36 53 52 54 56 5 51 54 58 55 52 55 54 55 52 53 54 53 52 5 57 Jul 27 46 41 53 45 5 48 54 54 56 55 57 57 54 56 54 57 57 58 55 55 54 54 58 Jul 28 5 39 36 48 54 52 57 48 48 51 43 49 45 47 46 5 5 52 48 5 54 54 57 Jul 29 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Jul 3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Jul 31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Aug 1 44 43 42 49 53 56 57 56 56 57 56 53 38 55 56 56 57 57 57 56 56 55 58 Aug 2 52 33 42 51 55 59 58 56 53 55 56 56 58 56 56 55 55 56 51 51 53 54 58 Aug 3 5 46 47 51 49 54 58 55 55 54 56 52 54 58 55 54 57 58 57 52 54 57 59 Aug 4 49 41 44 39 52 53 53 56 58 56 55 55 57 54 54 47 54 53 54 51 54 5 51 57 Aug 5 48 48 5 54 53 54 55 55 51 56 54 55 56 56 56 58 57 55 56 54 49 49 58 Aug 6 44 37 53 59 58 57 57 57 57 57 54 58 56 57 55 56 55 53 53 46 57 Aug 7 49 48 53 45 53 55 58 59 39 5 46 44 47 47 46 52 49 48 49 52 51 47 45 57 Aug 8 43 46 34 45 55 54 57 42 42 41 34 42 44 39 47 5 51 54 5 5 49 52 52 56 Aug 9 44 47 46 37 43 45 52 41 39 43 46 44 47 47 54 54 53 52 49 52 53 53 Aug 1 43 5 5 53 45 48 43 43 44 52 45 46 52 46 44 48 55 56 56 52 44 4 54 Aug 11 35 43 36 4 47 55 56 55 42 56 56 55 54 54 55 55 57 55 56 52 46 54 Energy Average 47 44 44 43 48 51 52 56 55 53 53 54 54 54 53 55 54 55 55 55 54 52 52 52 57 Note: ## is aircraft events above 65 db daytime (7 a.m. - 1 p.m.) or 55 db nighttime (1 p.m. - 7 a.m.) --No data due to equipment malfunction. Chicago Department of Aviation Page 7 December 214
Hourly Noise Level Report Period: July 23, 214 to August 11, 214 Site: 221-5716 N. Virgina 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 23 1 1 1 1 1 6 8 1 3 5 4 1 2 5 2 6 3 2 4 4 61 Jul 24 1 1 9 15 23 32 24 5 2 5 1 9 8 1 27 25 29 3 22 1 2 2 283 Jul 25 1 2 1 3 5 6 16 35 36 26 29 3 35 36 29 34 28 33 31 31 23 15 19 18 522 Jul 26 2 1 11 17 25 3 6 8 6 43 22 2 27 22 24 12 12 14 17 12 8 339 Jul 27 2 1 11 3 14 6 19 18 29 21 29 2 22 27 22 16 31 35 28 29 19 17 419 Jul 28 8 2 1 6 2 19 32 9 8 8 4 9 5 4 7 8 7 5 6 8 14 15 25 Jul 29 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Jul 3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Jul 31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Aug 1 3 1 1 9 21 31 33 27 28 29 28 15 1 18 25 24 3 34 31 23 19 17 448 Aug 2 9 1 2 14 25 34 33 28 18 2 32 28 28 33 29 17 2 3 12 11 12 12 448 Aug 3 5 3 5 11 12 19 28 22 24 21 32 16 2 38 3 22 34 39 24 14 11 19 449 Aug 4 6 2 1 2 6 17 17 36 32 26 2 24 33 28 17 2 3 13 16 12 1 4 3 321 Aug 5 1 5 3 17 25 26 24 23 9 25 7 34 33 34 3 33 37 34 33 18 5 3 459 Aug 6 1 1 19 32 35 25 31 31 34 28 24 37 23 3 3 34 27 15 7 3 467 Aug 7 3 2 3 1 5 28 39 36 2 5 5 4 5 5 4 7 7 9 7 11 7 2 3 2 Aug 8 1 1 1 4 24 22 34 3 3 1 1 3 6 2 7 8 6 11 12 9 3 6 2 17 Aug 9 2 2 2 1 3 4 2 2 2 2 5 6 7 5 9 1 6 3 7 1 6 96 Aug 1 2 2 1 2 4 4 4 4 3 9 5 6 7 2 3 2 24 31 31 1 3 1 16 Aug 11 1 5 2 3 7 26 23 23 1 25 37 23 24 28 26 27 28 27 29 16 7 388 Average 2 1 1 1 3 8 14 21 17 12 11 13 17 15 13 16 15 15 18 19 16 1 7 7 272 Aircraft Noise Events are described on page 2 of this report. --No data due to equipment malfunction. Chicago Department of Aviation Page 8 December 214
Noise Level Graph Report (DNL) Period: July 23, 214 to August 11, 214 Site: 221-5716 N. Virgina Avenue Aircraft, Community and Total DNL Aircraft Community Total 85 8 75 Decibels (dba) 7 65 6 55 5 45 23 24 25 26 27 28 -- -- -- 1 2 3 4 5 6 7 8 9 1 11 Day Of The Month --No data due to equipment malfunction. Chicago Department of Aviation Page 9 December 214
Aircraft Noise Events Graph Report (Lmax) Period: July 23, 214 to August 11, 214 Site: 221-5716 N. Virgina Avenue 6 Total Number of Measured Aircraft Noise Events 5 Number of Events 4 3 2 1 2 31 42 53 64 75 86 97 18 dba Max Noise Levels Chicago Department of Aviation Page 1 December 214
Loudest Aircraft Noise Events Report Period: July 23, 214 to August 11, 214 Site: 221-5716 N. Virgina Avenue Aircraft Airline Event Time Aircraft Stage Ops 1 Rwy Lmax Graph Of Lmax CL3 General Aviation LXJ Aug 4, 15:9 CL3 3 D 9R 79.1 B744 Aug 4, 2:2 B744 3 D 1L 78.7 B739 Jul 24, 7:48 B739 3 A 27L 78. B744 Aug 9, 19:7 B744 3 D 1L 78. B748 Aug 1, 3:3 B748 3 D 1C 77.7 B744 Aug 4, 22: B744 3 D 1L 76.9 B744 CKK Jul 26, 11:58 B744 3 A 28C 76.9 B772 Aug 2, 8:7 B772 3 A 27L 76.9 B738 AAL Aug 3, 23:37 B738 3 A 27L 76.9 B738 AAL Aug 8, 7:2 B738 3 A 27L 76.9 B744 Aug 4, 16:3 B744 3 D 1L 76.8 B744 Aug 7, 5:4 B744 3 D 1L 76.7 B744 Aug 9, 8:1 B744 3 D 1L 76.2 MD82 AAL Aug 1, 11:48 MD82 3 D 9R 76.2 MD82 AAL Jul 28, 1:2 MD82 3 D 9R 76. B738 AAL Aug 3, 2:53 B738 3 A 27L 76. B772 Jul 27, 13:28 B772 3 A 27L 75.9 A319 Jul 25, 12:36 A319 3 A 27L 75.8 B744 Aug 1, 2:38 B744 3 D 1C 75.8 MD82 AAL Jul 25, 14:45 MD82 3 A 27L 75.6 A333 SAS Jul 26, 11:55 A333 3 A 27L 75.6 B739 Aug 3, 8:52 B739 3 A 27L 75.5 B739 Jul 24, 7:23 B739 3 A 27L 75.5 B738 AAL Aug 1, 19:42 B738 3 A 27L 75.5 B739 Aug 6, 7:58 B739 3 A 27L 75.4 75 85 95 1 "D" represents departures, "A" represents arrivals. Chicago Department of Aviation Page 12 December 214
Gate Location Report Period: July 25, 214 Operations: Arrivals and Departures Gate: Site 221-5716 N. Virginia Avenue Summary Arrivals: 533 Operations Left of Center: 516 (96%) Source: Airport Noise Management System (ANMS) Chicago Department of Aviation Departures: 1 : Left Boundary of Gate Page 13 Total Operations: 534 Operations Right of Center: 18 (4%) : Center of Gate : Right Boundary of Gate December 214
Aircraft Altitude Report Period: July 25, 214 Operations: Arrivals and Departures Gate: Site 221-5716 N. Virginia Avenue Arrivals: 533 Operations Left of Center: 516 (96%) Summary Departures: 1 Total Operations: 534 Operations Right of Center: 18 (4%) 8, 7,5 7, 6,5 Above Airport Elevation (feet) 6, 5,5 5, 4,5 4, 3,5 3, 2,5 2, 1,5 1, 5-1. -.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 December 214
O Hare Noise Hotline: 1-8-453-9569 www.flychicago.com