Fly Quiet Program · 3rd Quarter 2017 Report BACKGROUND On June 17, 1997, the City of Chicago...

Visit the O’Hare Noise Webpage on the Internet at

www.flychicago.com/ORDNoise

3rd Quarter 2017 Report

Fly Quiet Program Chicago O’Hare International Airport

3rd Quarter 2017 Report

BACKGROUND

On June 17, 1997, the City of Chicago announced that airlines operating at O’Hare International Airport had

agreed to use designated noise abatement flight procedures in accordance with the Fly Quiet Program. The Fly Quiet Program was implemented in an effort to further reduce the impacts of aircraft noise on the

surrounding neighborhoods.

The Fly Quiet Program is a voluntary program that encourages pilots and air traffic controllers to use

designated nighttime preferential runways and flight tracks developed by the Chicago Department of Aviation in cooperation with the O'Hare Noise Compatibility Commission, the airlines, and the air traffic

controllers. These preferred routes direct aircraft over less-populated areas, such as forest preserves, highways, as well as commercial and industrial areas.

As part of the Fly Quiet Program, the Chicago Department of Aviation prepares a Quarterly Fly Quiet Report.

This report is shared with Chicago Department of Aviation officials, the O'Hare Noise Compatibility

Commission, the airlines, and the general public. The Fly Quiet Report contains detailed information regarding Fly Quiet Mode, runway use, flight operations, flight tracks, and noise complaints and 24-hour

tracking of ground run-ups. The data presented in this report is compiled from the Airport Noise Management System (ANMS) and airport operation logs.

FLY QUIET MODE (FQM)

The FAA considers nighttime hours as 10:00 p.m. - 7:00 a.m.1 It is the CDA’s goal for the Fly Quiet Program

to occur during the entire nine-hour nighttime period of 10:00 p.m. to 7:00 a.m., however due to operational

demand by the airlines and traveling public, Fly Quiet is typically limited to a period less than nine hours. Fly Quiet Mode, the period of time in Fly Quiet, starts each night on or after 10:00 p.m., once demand allows

for two departure runways and one arrival runway and allows for the use of the preferential flight tracks as outlined in the CDA’s Fly Quiet Manual. Demand for the majority of the night allows for one arrival runway

and one departure runway. Once demand increases in the morning where additional runways are needed and preferential flight tracks can no longer be utilized, Fly Quiet Mode stops.

Highlights for 3Q 2017 include:

Average Start Time: 10:38 p.m. Average Stop Time: 5:42 a.m.

Time in FQM: 7:02 Operations in FQM: 116

1 Airport Noise Compatibility Planning (14 CFR Part 150)

Chicago Department of Aviation Page 1 3rd Quarter 2017

OPERATIONS

O’Hare has eight runways that are all utilized at different times depending on a number of conditions including weather, airfield pavement and construction activities, and air traffic demand.

The Runway Use Reports disclose runway utilize for the period and compares the average percentage of use

for each runway during the current quarter with the previous quarter as well as with the 12-month average. The percentage of use for departures and arrivals is shown graphically for each runway. This data is

presented for all aircraft types during Fly Quiet Mode. The Nighttime Hourly Operations Report compares

the arrivals and departures by hour in 15 minute increments to the current quarter with the previous quarter as well as with the 12-month average. Percentage is a ratio whereas a percentage point is the difference

between two percentages.

Highlights for 3Q 2017 include:

Departures Arrivals

Most used nighttime departure runway: 28R – 33% Most used nighttime arrival runway: 10C – 23%

22L night departures increased by 5pp from 2Q 2017 10C night arrivals increased by 7pp from 2Q 2017

33 night departures decreased by 7pp from 2Q 2017 10L night arrivals decreased 9pp from 2Q 2017

pp = Percentage Points

Nighttime operations represent 11% of the overall daily operations

ARRIVAL SUMMARY

A summary of nighttime arrivals is provided for the two most-used arrival runways (28C and 10C); the

airline summary is also compared to the data from the same quarter of the previous year.

PREFERENTIAL FLIGHT TRACKS

As part of the Fly Quiet Program, the Chicago Department of Aviation worked with the O'Hare Noise

Compatibility Commission, the airlines, and the air traffic controllers to identify preferred runways and flight tracks for nighttime operations at O’Hare. The preferred routes direct aircraft over less-populated areas in

an effort to limit the effects of noise on the surrounding communities.

Adherence to nighttime departure preferential flight tracks is measured by the ANMS. A detailed airline

deviation summary is provided for the two most-used departure runways (28R and 10L); the airline deviation is also compared to the data from the same quarter of the previous year.

An average deviation graphic and table is provided for all runways. The Nighttime Departure Track Report

measures FQM deviation (in nautical miles) from the preferred flight tracks and is divided into three categories:

less than 0.5 miles

between 0.5 and 1.0 miles

greater than 1.0 miles


NOISE COMPLAINTS

The Chicago Department of Aviation maintains a toll-free O’Hare noise hotline (1-800-435-9569) and an on-line service at www.flychicago.com/ORDNoise for citizens to express their concerns about particular

incidents or about aircraft noise levels in general. The Nighttime Noise Complaint Report summarizes the number of complaints received and where the complainants were located. The tabular report lists the

number of complaints by community as well as the number of individual complainants. The graph at the bottom of the page illustrates the nature of the complaints during the current quarter. Complaints include

all complaints made within the State of Illinois to the O’Hare Noise Hotline toll-free number or on-line

feature.

GROUND RUN-UPS

Ground run-ups are aircraft engine tests that are performed to ensure that the engines are working properly after maintenance is performed. Ground run-ups typically occur at night and generate high levels of noise

for extended periods of time. In 1997, the Chicago Department of Aviation constructed a ground run-up enclosure (GRE) at O’Hare to help reduce the noise impacts of ground run-ups on the communities

surrounding the airport. This facility was the first of its kind in the United States. When it is not possible

to use the GRE, run-ups are performed on one of the three identified alternative locations.

The Airline Ground Run-up Report displays the total number of ground run ups from the current quarter by airline. The Aircraft Ground Run-up Report displays the total number of ground run ups from the current

quarter by aircraft. Both reports compare the percent utilization of the GRE facility to the percent utilization of other locations for ground run-ups. It also compares the current quarter’s GRE usage to the 12-month

average and to the same quarter of the previous year.

NOISE

The Nighttime Aircraft Noise Report summarizes noise measurements from each of the 33 noise monitors

located around O’Hare. The data presented summarizes the Equivalent Sound Level (Leq). Leq is used to identify the average sound level over a given period of time (in this case 10 p.m. to 7 a.m.) and is the

metric used for this analysis as it is the most appropriate noise measure for periods of time less than 24 hours.

The data in this report displays the average Leq for the current quarter and its comparison to the previous

four quarters. It also compares the current quarter’s Leq to the 12-month average. Numbers displayed in

red represent an increase of at least 1 dB over the aircraft Leq from the same quarter of the previous year whereas numbers displayed in green represent a decrease of at least 1 dB from the aircraft Leq from the

same quarter of the previous year.


http://www.flychicago.com/ORDNoise

Nighttime Hourly Operations ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 10:00 p.m. to 7:00 a.m.

Average Da

ily Ope

ratio

ns

Average Arrivals and Departures by Hour

3Q17Arrivals

3Q16Arrivals

3Q17Departures

3Q16Departures

10 p.m. 11 p.m. 12 a.m. 1 a.m. 2 a.m. 3 a.m. 4 a.m. 5 a.m. 6 a.m.

15

10

5

0

5

10

20

20

15

Nighttime Mode – 9:00, 285 Operations

FQM STOP5:42 AM

FQM START10:38 PM

Time In Fly Quiet Mode – 7:02, 116 Operations

25

25


Runway Use ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 10:00 p.m. to 7:00 a.m.

8

6

20

04

21

40

5

2

0

6

#5

0

17

0

17

2

019

33

0

0

3

0

0%

10%

20%

30%

40%

50%

60%

70%

80%

Runway Use (10 p.m. to 7 a.m.) Source: Airport Noise Management System (ANMS)

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

Average Daily Departures3Q 2017 6 0 0 20 20 2 0 0 23 0 0 0 0 5 39 42Q 2017 3 0 0 21 18 2 0 0 15 0 0 0 0 4 32 1112 Month Avg. 2 0 0 17 13 2 0 0 17 0 0 0 0 7 33 11Average Daily Arrivals3Q 2017 0 6 9 3 8 39 2 1 1 13 33 9 0 35 7 n/a2Q 2017 0 5 8 2 20 24 1 1 4 4 33 5 0 23 13 n/a12 Month Avg. 0 3 7 2 11 24 1 1 1 7 37 5 0 29 10 n/a

Runway Utilization

3Q 2017

0%

10%

20%

30%

40%

50%

60%

70%

80%

3Q 2017

Departures (10 p.m. to 7 a.m.) Arrivals (10 p.m. to 7 a.m.)

Percentage Departure Utilization Percentage Arrival Utilization

#

4

0

0

23

0 0 1 0


Runway Use ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: Fly Quiet Mode (FQM)

16

0

8

19

20

90

11

0

1

0

#10

0

7

0

21

4

015

26

0

0

7

0

0%

10%

20%

30%

40%

50%

60%

70%

80%

3Q 2017

0%

10%

20%

30%

40%

50%

60%

70%

80%

3Q 2017

Departures Arrivals

Percentage Departure Utilization Percentage Arrival Utilization

#

1

0

0

25

0 0 0 0

Runway Use (FQM) Source: Airport Noise Management System (ANMS)

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

Average Daily Departures3Q 2017 5 0 0 3 9 2 0 0 7 0 0 0 0 4 12 3Average Daily Arrivals3Q 2017 0 6 0 0 7 17 0 1 1 12 6 0 0 14 6 n/a

Runway Utilization


Nighttime Arrival SummaryChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: Fly Quiet Mode (FQM)

3rd Quarter 2017

Name Type1

Aer Lingus P 1

AeroMexico P 39

AeroUnion C 4

Air Canada P 6

Air Canada Express/Sky Regional P 2

Air France P 2

AirBridge Cargo Airlines C 10

Alaska Airlines P 18

American Airlines P 270

American Eagle/Envoy P 10

American Eagle/PSA Airlines P 1

Asiana Airlines P 21

Atlas Air C 7

Cargolux Airlines C 20

Cathay Pacific Airways P 13

China Airlines P 1

China Cargo Airlines C 5

China Southern Airlines P 2

Copa Airlines P 16

Delta Air Lines P 32

Delta Connection/Endeavor Air P 2

DHL/Airborne Express C 1

Emirates P 5

Eva Airways P 1

FedEx C 85

Frontier Airlines P 31

General Aviation -- 4

Icelandair P 1

Interjet P 13

jetBlue Airways P 10

Kalitta Air P 9

Korean Air Lines P 24

Lufthansa Cargo C 8

National Air Cargo C 3

Nippon Cargo Airlines C 3

Polar Air Cargo C 2

Qantas Airways P 8

Qatar Airways P 14

Republic Airlines P 16

Singapore Airlines Cargo C 1

Sky West Aviation P 41

Spirit Airlines P 70

Turkish Airlines P 3

United Airlines P 373

United Express/ASA P 21

United Express/Gojet P 2

United Express/Trans States P 8

UPS C 53

Virgin America P 17

Volaris P 5

Yangtze River Express Airlines P 1

1,315

Note 1: Passenger Carrier (P) or Dedicated Cargo (C)

3Q17 3Q16

United & American 55% 50%

Other Domestic 16% 15%

Other International 14% 15%

Dedicated Cargo 15% 19%

General Aviation 0% 1%

Total 100% 100%

--

1

--

--

--

--

5

16

6

2

15

--

--

10

Carrier CategoryPercent of Total

Runway 28C Arrivals

ArrivalsAirline

Total

3rd Quarter 2016

--

Arrivals

2

--

7

6

94

10

24

11

6

2

47

22

7

--

1

1

12

3

1

5

5

4

8

7

638

1

3

40

195

8

4

6

30

9

1

1

--


Nighttime Arrival SummaryChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: Fly Quiet Mode (FQM)

3rd Quarter 2017

Name Type1

AeroMexico P 47

AeroUnion C 2

Air Canada P 5

Air Canada Express/Sky Regional P 2

Air Choice One P 1

AirBridge Cargo Airlines C 11

Alaska Airlines P 28

American Airlines P 381

American Eagle/Envoy P 20

American Eagle/PSA Airlines P 1

Asiana Airlines P 17

Atlas Air P 7

Cargolux Airlines C 21

Cathay Pacific Airways P 13

China Cargo Airlines P 4

China Southern Airlines P 1

Copa Airlines P 16

Delta Air Lines P 44

Delta Connection/Endeavor Air P 1

Emirates P 5

Etihad Airways P 1

EVA Air P 2

FedEx C 46

Frontier Airlines P 34

General Aviation -- 12

Interjet P 20

JetBlue Airways P 17

Kalitta Air P 4

Korean Air Lines P 18

Lufthansa Cargo C 7

National Air Cargo C 2

Nippon Cargo Airlines C 9

Polar Air Cargo C 3

Qantas Airways P 2

Qatar Airways Company P 12

Republic Airlines P 15

Sky West Aviation P 84

Spirit Airlines P 101

Turkish Airlines P 1

United Airlines P 443

United Express/ASA P 39

United Express/Gojet P 5

United Express/Trans States P 5

UPS C 30

Virgin America P 34

Volaris P 9

Yangtze River Express Airlines C 1

1,583Note 1: Passenger Carrier (P) or Dedicated Cargo (C)

3Q17 3Q16

United & American 62% 54%

Other Domestic 18% 22%

Other International 10% 12%

Dedicated Cargo 9% 10%

General Aviation 1% 2%

Total 100% 100%

5

--

7

2

2

17

3

--

2

3

5

6

10

--

--

7

Total

3rd Quarter 2016

Arrivals

32

1

--

17

136

23

--

3

11

18

5

3

9

Runway 10C Arrivals

30

34

13

ArrivalsAirline

2

1

13

1

--

2

--


11

4

12

18

15

64

222

--

769


Nighttime Preferential Flight Track SummaryChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: Fly Quiet Mode (FQM)

Name Type1 DeparturesAverage

Deviation (nautical miles)

DeparturesAverage

Deviation (nautical miles)

Aer Lingus P 1 0.51 -- --

Aerologic C 4 0.54 5 0.42

AeroMexico P 30 0.44 30 0.37

AeroUnion C 1 0.01 -- --

Air France P 1 0.50 -- --

AirBridge Cargo Airlines C 16 0.64 14 0.66

Alaska Airlines P 6 0.39 6 0.36

American Airlines P 66 0.41 62 0.41

American Eagle/Envoy P 5 0.46 9 0.18

Asiana Airlines P 36 0.36 35 0.46

Atlas Air C 13 0.43 10 0.34

Cargolux Airlines C 15 0.66 9 0.49

Cathay Pacific Airways P 11 0.50 9 0.48

China Cargo Airlines C 3 0.61 4 0.55

Delta Air Lines P 2 0.06 7 0.40

Emirates P 11 0.53 6 0.55

Eva Airways P 19 0.68 5 0.44

FedEx C 38 0.50 20 0.39

Frontier Airlines P 3 0.63 5 0.25

General Aviation -- 1 0.20 1 0.14

jetBlue Airways P 9 0.46 -- --

Kalitta Air C 10 0.28 1 0.40

Korean Air Lines P 17 0.42 16 0.35

LOT P 1 1.75 1 0.61

Lufthansa P 12 0.82 4 0.49

Lufthansa Cargo C 7 0.48 7 0.38

National Air Cargo C 2 0.51 -- --

Nippon Cargo Airlines C 16 0.47 7 0.38

Polar Air Cargo C 2 0.41 6 0.82

Qantas Airways P 10 0.54 9 0.49

Qatar Airways P 14 0.78 9 0.15

Republic Airlines P 15 0.49 -- --

Singapore Airlines Cargo C 3 0.60 -- --

Sky West Aviation P 42 0.51 21 0.37

Spirit Airlines P 18 0.38 16 0.38

Turkish Airlines P 2 0.91 1 0.57

United Airlines P 91 0.51 76 0.36

United Express/ASA P 3 0.79 10 0.18

United Express/Gojet P 5 0.75 3 0.38

United Express/Trans States P 4 0.33 4 0.19

UPS C 18 0.43 8 0.21

Western Global Airlines C 2 0.20 -- --

Overall 585 0.52 436 0.40Green represents a deviation of less than 0.5 nautical miles

Orange represents a deviation between 0.5 and 1.0 nautical miles

Red represents a deviation greater than 1.0 nautical mile 3Q17 3Q16

Note 1: Passenger Carrier (P) or Dedicated Cargo (C) 39% 44%

6% 8%

28% 28%

26% 19%

0% 0%

100% 100%

Dedicated Cargo

General Aviation

Total

United & American

Other Domestic

Other International

Runway 28R Departures3rd Quarter 2017 3rd Quarter 2016

Airline

Percent of TotalCarrier Category


Nighttime Preferential Flight Track SummaryChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: Fly Quiet Mode (FQM)

Name Type1 DeparturesAverage Deviation

(nautical miles)Departures

Average Deviation

(nautical miles)

Aerologic C 6 0.25 3 0.01

AeroMexico P 27 0.22 18 0.18

AeroUnion C 1 0.24 1 0.29

Air France P 3 0.10 -- --

AirBridge Cargo Airlines C 15 0.18 5 0.12

Alaska Airlines P 11 0.12 -- --

American Airlines P 59 0.32 28 0.16

American Eagle/Envoy P 11 0.19 4 0.20

American Eagle/PSA Airlines P 2 0.14 1 0.16

Asiana Airlines P 39 0.16 25 0.14

Atlas Air C 11 0.17 6 0.16

Cargolux Airlines C 13 0.19 7 0.22

Cathay Pacific Airways P 10 0.30 9 0.20

China Airlines P 3 0.26 -- --

China Cargo Airlines C 4 0.16 1 0.08

Emirates P 3 0.06 3 0.12

Eva Airways P 32 0.16 -- --

FedEx C 55 0.21 22 0.17

Finnair P 1 0.24 -- --

Frontier Airlines P 1 0.55 3 0.10

General Aviation -- 21 0.27 -- --

Hainan Airlines P 1 0.13 -- --

Iberia Airlines P 1 0.33 -- --

jetBlue Airways P 2 0.24 3 0.17

Kalitta Air C 10 0.18 -- --

Korean Air Lines P 15 0.11 6 0.19

LOT P 3 0.10 -- --

Lufthansa P 19 0.16 3 0.21

Lufthansa Cargo C 2 0.14 1 0.10

National Air Cargo C 4 0.39 -- --

Nippon Cargo Airlines C 23 0.13 7 0.13

Polar Air Cargo C 2 0.17 -- --

Qantas Airways P 5 0.50 3 0.27

Qatar Airways P 12 0.11 6 0.12

Republic Airlines P 12 0.16 3 0.22

Singapore Airlines Cargo C 4 0.14 -- --

Sky West Aviation P 39 0.20 9 0.18

Spirit Airlines P 17 0.28 2 0.32

Turkish Airlines P 3 0.23 -- --

United Airlines P 93 0.16 27 0.32

United Express/ASA P 1 0.01 3 0.18

United Express/Gojet P 1 0.31 1 0.06

United Express/Trans States P 6 0.16 9 0.19

UPS C 18 0.19 6 0.16

Virgin America P 2 0.13 -- --

Volaris P 9 0.15 -- --

Western Global Airlines C 1 0.10 -- --

Yangtze River Express Airlines C 4 0.12 -- --

Overall 637 0.20 225 0.17Green represents a deviation of less than 0.5 nautical miles

Orange represents a deviation between 0.5 and 1.0 nautical miles

Red represents a deviation greater than 1.0 nautical mile 3Q17 3Q16

Note 1: Passenger Carrier (P) or Dedicated Cargo (C) 35% 44%

5% 8%

29% 28%

27% 19%

3% 0%

100% 100%Total

Runway 10L Departures3rd Quarter 2017 3rd Quarter 2016

Airline


United & American

Other Domestic

Other International

Dedicated Cargo

General Aviation


Nighttime Departure Track ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 10:00 p.m. to 7:00 a.m.

Deviation(# tracks) 4L 4R 9L 9R 10C 10L 10R 15 22L 22R 27L 27R 28C 28L 28R 33

< 0.5(2,893) 97% n/a n/a 94% 95% n/a 100% 48% n/a 50% n/a n/a 79% 90%

0.5 < 1.0(477) 1% n/a n/a 2% 3% n/a 0% 43% n/a 0% n/a n/a 16% 3%

>1.0(165) 2% n/a n/a 4% 2% n/a 0% 9% n/a 50% n/a n/a 5% 7%

n/a = not applicableNote 1: Runways 10C and 28C are shown in white and do not have preferential flight tracks.Note 2: Non-FQM departures are shown in purple.Flight tracks shown until 3,000' Mean Sea Level (MSL).

Runway Departures (in %) versus Deviation (in nautical miles)

n/a1 n/a1

Preferential Flight Track

Existing Runwaysto be Decommissioned

Existing Runways Future Runways

4,115 FQM Departures6,287 Non-FQM2 Departures

10,402 Total Departures


Nighttime Noise Complaint ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 10:00 p.m. to 7:00 a.m.

CommunityTotal

ComplaintsNumber of

Complainants

Addison 35 4Arlington Heights 1,097 6Bartlett 759 6Bensenville 242,110 23,330Berkeley 13 4Bloomingdale 1,640 105Carol Stream 7 2Chicago 48,105 11,560

Ward 38 4,686 41Ward 39 5,149 84Ward 40 1,264 21Ward 41 11,303 285Ward 45 7,883 69Ward Other 6,814 57Ward Unknown 11,006 11,003

Des Plaines 1,532 33Downers Grove 8 1Dundee 788 788East Dundee 159 159Elgin 542 67Elk Grove Village 10,792 5,844Elmhurst 4,272 456Elmwood Park 13 8Evanston 825 26Franklin Park 84 14Geneva 12,400 12,390Gilberts 381 1Glen Ellyn 9 1Glenview 1,907 446Hanover Park 815 2Harwood Heights 219 13Hillside 10 2Huntley 1 1Indian Head Park 4 4Itasca 6,965 27La Grange Park 4 3Lincolnwood 1,703 5Lombard 50 15Medinah 2,518 107Melrose Park 3 2Morton Grove 30 3Mount Prospect 495 3Niles 4,547 16Norridge 4,204 32Northbrook 95 3Northfield 62 7Northlake 9 5Palatine 25 10Park Ridge 28,875 11,130Prospect Heights 1 1River Forest 312 312River Grove 9 3Riverside 1 1Roselle 750 15Rosemont 129 2Schaumburg 27,750 26,048Schiller Park 4,267 18Skokie 615 2Sleepy Hollow 229 48South Barrington 6 4South Elgin 84 2St. Charles 5 3Streamwood 1 1Unincorporated Cook 144 1Villa Park 140 12Wayne 496 5West Chicago 548 25West Dundee 51 2Western Springs 54 3Westmont 4 2Wheaton 226 2Wilmette 1 1Winfield 12 3Winnetka 62 3Wood Dale 28,434 20,779Community Unknown 1,179 1,179

3Q 2017 Total 443,622 115,1182Q 2017 Total 458,898 184,57012 Month Average2 322,890 106,6551 Only includes calls made from the State of Illinois. 2 12 Month Average equals average of: 4Q 2016, 1Q 2017, 2Q 2017 and 3Q 2017.

Complaints by Community1 Nature of Noise Complaints

Low Flying59%

Frequency of Operations

14%Vibration

1%Aircraft Noise

26%

Not Reported0%


Nighttime Aircraft Noise ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 10:00 p.m. to 7:00 a.m.Metric: Aircraft Leq

4Q 2016 1Q 2017 2Q 2017 3Q 2017

1 Arlington Heights 48.1 46.6 49.4 45.4 49.1 47.62 Melrose Park 48.7 43.2 50.4 51.5 49.8 49.43 Bensenville 56.4 53.8 54.7 54.6 54.8 55.04 Schiller Park 50.7 45.3 47.8 47.7 50.0 48.35 Chicago 51.5 51.7 53.9 58.0 51.6 54.67 Des Plaines 39.3 38.1 40.4 41.6 42.3 40.18 Des Plaines 46.4 42.2 50.4 53.6 46.8 50.010 Rolling Meadows 50.5 45.0 49.0 46.8 49.8 48.311 Chicago 45.0 44.2 46.8 48.3 45.5 46.412 Elk Grove Village 51.8 50.9 53.3 49.1 52.4 51.613 Elk Grove Village 59.0 57.4 58.8 57.2 61.5 58.214 Elk Grove Village 52.0 51.4 51.4 46.2 51.4 50.815 Franklin Park 45.3 39.4 42.1 41.8 45.3 42.716 Franklin Park 56.5 52.3 54.8 55.7 54.0 55.117 Harwood Heights 57.1 56.8 57.2 58.4 56.8 57.419 Stone Park 41.3 40.9 41.8 40.0 41.2 41.120 Mount Prospect 45.1 44.6 45.6 42.7 46.6 44.621 Mount Prospect 42.6 37.2 41.7 38.9 40.4 40.622 Norridge 57.6 60.6 59.8 62.3 59.1 60.423 Northlake 55.1 52.0 54.7 56.7 54.7 54.924 Park Ridge 43.2 41.7 46.5 47.1 46.8 45.225 Park Ridge 53.2 53.6 54.5 54.3 53.9 53.926 Park Ridge 44.9 45.9 48.6 47.2 46.2 46.927 Rosemont 60.8 60.4 61.2 60.7 61.1 60.828 Schiller Park 66.8 67.6 68.3 67.6 66.7 67.629 Wood Dale 58.3 59.0 60.2 60.0 59.1 59.530 Wood Dale 46.8 46.7 46.7 46.2 48.8 46.632 Wood Dale 57.8 57.4 57.9 60.0 57.7 58.433 Park Ridge 49.9 47.9 52.4 52.6 50.3 51.134 Elk Grove Village 50.5 49.5 51.2 50.0 50.8 50.335 Unincorporated Cook 49.1 45.1 48.5 48.0 47.4 47.937 Mount Prospect 38.2 37.0 36.7 37.7 39.7 37.442 Chicago 46.1 44.7 49.1 48.9 47.2 47.6

1 Leq (Equivalent Sound Level): The average sound energy level during a stated period of time. Red represents an increase of 1 dB or more from same quarter of the previous year (11 monitors). Green represents a decrease of 1 dB or more from same quarter of the previous year (12 monitors).

3Q 2016 12 Month Avg.RMT # Community

Last 4 Quarters Monitored Noise Levels 1


Airline Ground Run-Up ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 24 Hours

All AirlinesLocation Run-ups Percentage Run-ups Percentage Run-ups PercentageGRE 138 45% 193 75% 161 67%Other 169 55% 65 25% 81 33%Total 307 100% 258 100% 241 100%GRE 34 36% 60 76% 58 67%Other 61 64% 19 24% 28 33%Total 95 100% 79 100% 86 100%GRE 20 44% 32 100% 30 82%Other 25 56% 0 0% 7 18%Total 45 100% 32 100% 37 100%GRE 60 61% 65 92% 49 80%Other 38 39% 6 8% 12 20%Total 98 100% 71 100% 61 100%GRE 14 34% 27 45% 18 41%Other 27 66% 33 55% 25 59%Total 41 100% 60 100% 43 100%GRE 10 36% 9 56% 9 51%

Other Other 18 64% 7 44% 8 49%Total 28 100% 16 100% 17 100%

112 Month Average equals the average of: 4Q 2016, 1Q 2017, 2Q 2017 and 3Q 2017.Note: GRE was out of service for relocation from August 14, 2017 through December 14, 2017.

3rd Quarter 2017 2nd Quarter 2017 12 Month Avg. 1

Ground Run-Up Locations3Q 2017

GRE45%

Other55%


Aircraft Ground Run-Up ReportChicago O'Hare International AirportPeriod: 3rd Quarter 2017Time of Day: 24 Hours

Aircraft Run-ups Total

Run-ups in GRE

Percentage Use of GRE

Run-ups Total

Run-ups in GRE

Percentage Use of GRE

A319 3 3 100% 8 7 88%

A320 13 8 62% 4 2 50%

B737 68 26 38% 61 54 89%

B747 3 0 0% 2 0 0%

B757 17 1 6% 20 6 30%

B767 9 0 0% 25 4 16%

B777 3 0 0% 6 1 17%

B787 2 0 0% 0 0 0%

CRJ200/700 83 57 69% 65 62 95%

DC9Q 1 0 0% 1 0 0%

E135/145 79 31 39% 42 40 95%

MD80 25 12 48% 15 15 100%

Other 1 0 0% 9 2 22%

TOTAL 307 138 45% 258 193 75%

Note: GRE was out of service for relocation from August 14, 2017 through December 14, 2017.

3rd Quarter 2017 2nd Quarter 2017


Chicago Department of Aviation O’Hare Noise Hotline: 1-800-435-9569

www.flychicago.com/ORDNoise

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