portable noise monitor report - flychicagolocation, are shown in the attached report with the...

Portable Noise Monitor Report

Chicago O’Hare International Airport

Visit the O’Hare Noise webpage on the Internet atwww.flychicago.com/ORDNoise

Site 2168 204 Lori Court, Medinah November 30, 2017 through December 19, 2017

USH08-ILH45-ILS23


City of Chicago Department of Aviation Portable Noise Monitor Report

Chicago O’Hare International Airport

Site 2168 deployed at 204 Lori Court, Medinah

November 30, 2017 through December 19, 2017

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 150,000 flights and 400,000 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 204 Lori Court, Medinah between November 30 and December 19, 2017. The monitor was located approximately 8.3 miles west from the center of the airport, as shown

Chicago Department of Aviation Page 1 Printed January 2018


on the vicinity map on page 4. The operations that primarily affected this location during the monitoring period were Departures on Runway 28R 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 and community noise in Day-Night Average Sound Levels (DNL’s). DNL is a 24-hour time-averaged sound exposure level with a 10 decibel (dB) nighttime (10 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. 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. 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 10. 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 Lmax. The Lmax is the maximum or peak level that the noise reached during the aircraft overflight. When comparing Aircraft Noise Levels to other everyday sounds the Lmax 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 75,000 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 MD80’s (McDonnell Douglas MD-80). 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.


Runway Use ReportChicago O'Hare International AirportPeriod: November 30, 2017 to December 19, 2017Time of Day: All Hours

0

26

43

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1

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00

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#0

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033

63

#R

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3

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Departures Arrivals

Percentage Departure Utilization Percentage Arrival Utilization

#

1

0 #

0

0

0

0

0

Runway Use (All Hours) Source: Airport Noise Management System (ANMS)

4L 4R 9L 9R 10L 10C 10R 15 22L 22R 27L 27R 28L 28C 28R 33

Average Daily OperationsDepartures 0 0 0 0 0 0 0 0 380 0 1 0 0 12 741 34Arrivals 0 0 0 0 0 0 0 0 2 3 505 299 0 346 16 n/a

Percentage UtilizationDepartures 0% 0% 0% 0% 0% 0% 0% 0% 33% 0% 0% 0% 0% 1% 63% 3%Arrivals 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 43% 26% 0% 30% 1% 0%

Runway Utilization


Noise and Aircraft Events ReportChicago O'Hare International AirportPeriod: November 30, 2017 to December 19, 2017Site: 2168 - 204 Lori Court

Measured DNLDaily Loud Events

Events >85 Lmax

Nov 30 51.4 51.2 97 0Dec 1 54.1 56.1 131 0Dec 2 50.3 52.2 90 0Dec 3 49.2 53.2 104 0Dec 4 49.9 58.2 91 0Dec 5 50.5 59.2 86 0Dec 6 49.7 50.1 101 0Dec 7 51.5 48.9 113 0Dec 8 50.5 50.8 118 0Dec 9 45.8 54.0 41 0Dec 10 52.4 48.5 116 0Dec 11 51.9 53.4 107 0Dec 12 -- -- -- --Dec 13 49.1 52.8 100 0Dec 14 52.1 52.0 138 0Dec 15 50.4 50.7 126 0Dec 16 51.8 52.5 137 0Dec 17 52.2 52.5 122 0Dec 18 52.4 52.4 133 0Dec 19 45.6 56.8 31 0

Average DNL Average AverageAircraft Community All Events >85 Lmax51.0 54.0 104 0

--No data due to equipment malfunction.

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. Only aircraft noise is considered when creating the FAA approved noise contour.

DayAircraft Noise Events

Aircraft Community


Hourly Noise Level ReportChicago O'Hare International AirportPeriod: November 30, 2017 to December 19, 2017Site: 2168 - 204 Lori CourtMetric: Aircraft Noise Events

Hour Of The Day00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Nov 30 0 0 0 0 0 2 2 10 2 8 9 4 8 7 6 5 4 11 2 8 4 4 1 0 97Dec 1 0 0 0 1 0 2 1 12 6 20 9 2 14 11 5 6 11 8 6 6 7 4 0 0 131Dec 2 0 0 0 0 0 0 1 7 4 4 8 4 13 5 4 7 4 7 1 5 9 5 2 0 90Dec 3 0 0 2 0 0 0 1 11 6 13 6 3 7 4 3 8 6 10 2 8 9 4 1 0 104Dec 4 0 0 0 0 0 1 0 8 2 11 17 1 10 8 4 7 3 3 1 1 1 7 6 0 91Dec 5 0 0 1 0 0 2 2 8 9 4 5 2 8 10 3 4 6 4 2 5 7 3 1 0 86Dec 6 0 0 0 0 0 0 2 12 7 7 7 3 5 7 6 5 7 12 3 5 6 4 3 0 101Dec 7 1 0 0 0 0 0 1 4 11 4 10 3 12 7 7 7 10 9 4 9 6 5 3 0 113Dec 8 1 0 0 0 0 3 0 10 4 8 4 2 15 9 8 9 4 11 4 9 11 5 1 0 118Dec 9 0 0 0 0 0 0 0 2 0 4 3 0 1 2 0 0 1 3 0 6 12 4 3 0 41Dec 10 0 0 0 0 0 1 0 11 3 16 8 4 13 4 7 9 9 10 5 5 9 0 2 0 116Dec 11 0 1 0 0 0 1 2 9 7 12 13 2 8 8 7 5 5 5 8 4 9 0 1 0 107Dec 12 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Dec 13 0 0 0 0 0 1 1 6 8 9 11 2 10 9 4 5 3 4 5 5 11 4 2 0 100Dec 14 0 0 0 0 0 1 2 14 8 14 12 4 11 7 5 5 7 11 7 8 13 6 3 0 138Dec 15 0 0 0 0 0 2 2 7 8 14 5 2 9 6 8 9 7 14 5 9 13 6 0 0 126Dec 16 0 0 0 0 0 1 1 10 4 15 8 3 12 9 10 9 11 14 2 6 14 5 1 2 137Dec 17 0 1 0 0 0 3 2 2 4 12 12 0 18 5 6 5 5 14 6 10 6 7 3 1 122Dec 18 0 0 0 0 0 0 3 10 1 12 8 3 15 7 5 11 8 11 4 10 18 5 2 0 133Dec 19 0 0 0 0 0 1 1 0 0 2 1 1 1 4 0 1 0 2 3 6 1 6 1 0 31

0 0 0 0 0 1 1 8 5 9 8 2 10 6 5 6 6 8 4 6 8 4 2 0 104

Aircraft Noise Events are described on page 2 of this report.


Average

Date Count


Hourly Noise Level ReportChicago O'Hare International AirportPeriod: November 30, 2017 to December 19, 2017Site: 2168 - 204 Lori CourtMetric: Aircraft Leq

Hour Of The Day00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Nov 30 0 0 0 0 0 49 44 51 40 51 55 49 50 52 53 51 50 55 48 54 51 50 43 0 51Dec 1 0 0 0 53 0 50 42 54 52 58 52 48 56 52 51 51 54 54 49 49 49 47 0 0 54Dec 2 0 0 0 0 0 0 42 52 50 48 53 47 54 48 50 51 48 52 40 49 51 50 49 0 50Dec 3 0 0 42 0 0 0 34 54 49 54 51 50 51 44 49 53 48 52 49 49 51 49 37 0 49Dec 4 0 0 0 0 0 41 0 51 44 53 58 43 55 53 49 50 43 50 40 38 41 48 45 0 50Dec 5 0 0 46 0 0 48 44 50 52 48 49 46 51 54 47 45 53 48 43 45 46 45 42 0 51Dec 6 0 0 0 0 0 0 47 52 49 52 49 49 49 47 50 49 51 53 47 49 49 50 45 0 50Dec 7 38 0 0 0 0 0 51 49 52 47 52 47 53 51 51 52 51 53 48 50 51 51 45 0 52Dec 8 38 0 0 0 0 45 0 53 47 55 47 44 54 52 51 55 46 54 48 52 52 50 39 0 51Dec 9 0 0 0 0 0 0 0 45 0 47 47 0 40 46 0 0 43 56 0 51 53 48 44 0 46Dec 10 0 0 0 0 0 40 0 55 49 55 54 54 56 53 49 57 53 56 47 52 53 0 48 0 52Dec 11 0 36 0 0 0 50 44 53 53 54 54 48 53 51 55 50 49 50 53 50 50 0 35 0 52Dec 12 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --Dec 13 0 0 0 0 0 44 34 49 53 52 51 45 54 52 51 49 45 46 49 50 50 48 42 0 49Dec 14 0 0 0 0 0 40 40 57 54 54 53 47 52 49 50 50 50 55 50 50 54 50 50 0 52Dec 15 0 0 0 0 0 44 42 49 51 54 50 46 51 50 54 53 49 55 49 51 54 49 0 0 50Dec 16 0 0 0 0 0 43 41 53 50 55 54 42 55 52 55 52 54 55 52 51 55 48 41 43 52Dec 17 0 41 0 0 0 48 46 47 48 55 54 0 56 48 51 50 47 54 50 53 49 52 47 42 52Dec 18 0 0 0 0 0 0 50 52 41 53 53 49 57 49 50 53 53 54 51 54 55 51 46 0 52Dec 19 0 0 0 0 0 42 42 0 0 43 43 34 41 48 0 45 0 50 47 51 42 48 40 0 46

EnergyAverage 29 29 34 41 0 45 44 52 50 53 53 47 53 51 51 52 50 54 48 51 51 49 45 33 51

Note: ## is aircraft events above 65 dB daytime (7 a.m. - 10 p.m.) or 55 dB nighttime (10 p.m. - 7 a.m.)


DNLDate


Noise Level Graph Report (DNL)

Chicago O'Hare International Airport

Period: November 30, 2017 to December 19, 2017

Site: 2168 - 204 Lori Court

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30 01 02 03 04 05 06 07 08 09 10 11 -- 13 14 15 16 17 18 19

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Day Of The Month

Aircraft and Community DNLAircraft

Community


Aircraft Noise Events Graph Report (Lmax)Chicago O'Hare International AirportPeriod: November 30, 2017 to December 19, 2017Site: 2168 - 204 Lori Court

Total Number of Measured Aircraft Noise Events

Nu

mb

er o

f Ev

ents

dBA Max Noise Levels

0

50

100

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20 31 42 53 64 75 86 97 108


Loudest Aircraft Noise Events Report

Chicago O'Hare International Airport

Period: November 30, 2017 to December 19, 2017

Site: 2168 - 204 Lori Court

Aircraft Airline Event Time Aircraft Stage Ops1

Rwy Lmax Graph Of Lmax

Dec 01, 03:18 B744 3 D 28C 80.5

Dec 04, 12:00 MD83 3 D 28R 78.9

Dec 01, 12:02 MD83 3 D 28R 78.4

Dec 05, 16:07 B744 3 D 28R 77.3

Nov 30, 17:16 MD83 3 D 28R 77.2

Dec 07, 06:51 MD88 3 D 28R 77.0

Dec 03, 15:03 MD83 3 D 28R 76.8

Dec 01, 17:13 MD82 3 D 28R 75.7

Nov 30, 10:09 MD83 3 D 28R 75.5

Dec 04, 10:49 MD83 3 D 28R 75.0

Dec 05, 13:46 CRJ7 3 D 28R 74.5

Dec 05, 10:10 B772 3 D 28R 73.7

Nov 30, 10:39 B738 3 D 28R 73.7

Dec 07, 17:06 MD82 3 D 28R 73.5

Dec 04, 10:20 B738 3 D 28R 73.4

Dec 04, 17:52 B739 3 D 28R 73.3

Dec 01, 09:56 B772 3 D 28R 73.3

Dec 02, 10:27 MD83 3 D 22L 73.2

Dec 03, 12:03 MD83 3 D 28R 73.2

Dec 04, 10:14 B772 3 D 28R 73.1

Nov 30, 14:45 B739 3 D 28R 73.1

Dec 01, 15:14 B738 3 D 28R 72.8

Dec 01, 12:36 B739 3 D 28R 72.6

Dec 03, 12:42 B739 3 D 28R 72.5

Dec 04, 10:10 MD83 3 D 28R 72.4

1 "D" represents departures, "A" represents arrivals.

10070 85


Gate Location ReportChicago O'Hare International AirportPeriod: December 1, 2017Operations: Arrivals and DeparturesGate: Site 2168 - 204 Lori Court

Source: Airport Noise Management System (ANMS)

Summary

Arrivals: 1 Operations Left of Center: 90 (62.5%)

Departures: 143 Total Operations: 144Operations Right of Center: 54 (37.5%)

: Right Boundary of Gate: Center of Gate: Left Boundary of Gate


Aircraft Altitude ReportChicago O'Hare International AirportPeriod: December 1, 2017Operations: Arrivals and DeparturesGate: Site 2168 - 204 Lori Court

Note: Airport elevation is based on published aeronautical chartsSource: Airport Noise Management System (ANMS)

Summary

Arrivals: 1 Operations Left of Center: 90 (62.5%)

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ove

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Deviation From Center of Gate (miles)

Departures: 143 Total Operations: 144Operations Right of Center: 54 (37.5%)


O’Hare Noise Hotline: 1-800-435-9569 www.flychicago.com/ORDNoise

portable noise monitor report - flychicagolocation, are shown in the attached report with the...

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