HomeMy WebLinkAbout08 J.W. NOISE RPT 08-02-99NO. 8
8-2-99
DATr_:
AUGUST 2, 1999
TO:
FROM:
SUBJECT:
'WILLIAM A. HUSTON, CITY MANAGER
COMMUNITY DEVELOPMENT DEPARTMENT
JOHN WAYNE AIRPORT NOISE ABATEMENT QUARTERLY REPORTS
SUMMARY: This report transmits two John Wayne Airport Noise Abatement Quarterly
Reports for the third and fourth quarters of 1998. The average noise level measured at
monitoring station M-7, located at Columbus Tustin Middle School, slightly increased
during the third and fourth quarters. Average noise levels during both quarters remained
below the City, County and State criteria of 65 dB Community Noise Equivalent Level
(CNEL) for residential uses.
RECOMMENDATION
Receive and file report.
FISCAL IMPACT
The City' retains the acoustics consulting firm of J.J. Van Houten and Associates, Inc. to review
JWA Noise Abatement Quarterly Reports. The costs for such reviews are annually included in the
Community Development Department budget.
DISCUSSION
Following the conclusion of each calendar quarter, John Wayne Airport prepares a Noise
Abatement Program Quarterly Report and transmits a copy of the report to the City of Tustin.
Twice a year, the City' s consultant prepares a report, which summarizes two quarterly reports.
Attachment l contains the quarterly reports for the third and fourth quarters of 1998. Attachment 2
contains the summary report prepared by the noise consultant. A brief overview of the information
contained within these attachments follows.
Measured Noise Levels
During the third quarter of 1998, the average CNEL at Remote Monitoring Station (RSViS)
#7, located at Columbus Tustin Middle School, was 56.3dB. This is 0.4 dB more than the
City Council Report
JWA Noise Abatement Quarterly Reports
August 2, 1999.
Page 2
four previous quarters. However, for comparison, the CNEL was 0.1 dB higher (56.4)
during the third quarter of 1997.
During the fourth quarter of 1998, the average CNEL was 57.2. This is 1.3 dB more than .
the four previous, quarters. For comparison, the CNEL was 3.6 dB lower (53.6) during the
fourth quarter of 1997.
All measured noise levels are below the City, County and State criteria of 65 dB CNEL for
residential areas.
Noise Complaints
During the third quarter of 1998, there were 89 Tustin/Orange complaints compared with 29
for the same period during 1997.
During the fourth quarter of 1998, there were 32 Tustin/Orange complaints compared with
29 for the same period during 1997.
The number of complaints was significantly higher during the third quarter. The overall
number of complaints received in 1998 was higher than in 1997, which correlates with the
increase in average annual CNEL.
Type and Mix of Aircraft Related to Noise Levels
During the third quarter of 1998, the percentage of quieter Class E aircraft increased and the
percentage of noisier Class A aircraft decreased compared with the same period in 1997.
The average CNEL for the third quarter of 1998 was slightly lower than the same period
during 1997.
During the fourth quarter of 1998 the percentage of quieter Class E aircraft slightly
decreased and the percentage of noisier Class A aircraft slightly increased compared with
the same period in 1997. The average CNEL for the fourth quarter was noticeably higher
than the fourth quarter of 1997.
The percentage of quieter Class E aircraft using John Wayne Airport was higher in the 4~
quarter than the 3e quarter of 1998. However, this increase was offset by an increase in the
use of the noisier Class A aircraft, which resulted in an increase in the average quarterly
CNEL.
City Council Report
JWA Noise Abatement Quarterly Reports
August 2, 1999
Page 3
Since noise issues are of considerable importance to th~ City of Tustin, the Community
Development Department will continue to monitor operations at John Wayne Airport unless
otherwise directed by the City Council.
Minoo Ashabi
Assistant Planner
Elizabeth A. Binsfick~
Community Development Director
Attachments
.
John Wayne Airport Noise Abatement Quarterly Reports for July 1, 1998 ' September 30,
1998 and October 1, 1998 - December 31, 1998.
.
Review of John Wayne Airport Noise Abatement Program Quarterly Reports, 3rd and 4th
Quarters 1998 (Van Houten and Associates, Inc.)
ma:airport\jwa3&4report-99
NOISE ABATEMENT PROGRAM
QUARTERLY REPORT
For the period:
July 1, 1998 through September 30, 1998
Prepared in accordance with:
AIRPORT NOISE STANDARD
STATE OF CALIFORNIA
California Administrative Code Title 21,
Chapter 2.5, SubChapter 6:
Division of Aeronautics
Noise Standards
Submitted by:
Loan Leblow
Interim Airport Director
John Wayne Airport, Orange County
INTRODUCTION
This is the 103rd Quarterly Report submitted by the County of Orange in accordance with the
requirements of the California Airport Noise Standards (California Administrative Code Title 21,
Chapter 2.5, SubChapter 6: Division of Aeronautics Noise Standards). Effective January 1,
1986, the criteria for defining "Noise Impact Area" was changed from 70 dB to 65 dB
Community Noise Equivalent Level (CNEL). under this criteria, John Wayne Airport currently
has a "Noise Impact Area."
NOISE IMPACT SUMMARY
Caltrans' Aeronautics Program has established guidelines in the California State Noise Standard
to control residential area noise levels produced by aircraft operations using the State's airports.
under those guidelines, residential noise sensitive areas exposed to an average Community Noise
Equivalent Level (CNEL) of more than 65 dB define the "Noise Impact Area." John' Wayne
Airport uses ten permanent remote monitoring stations (NMS) located in Newport Beach, Santa
Ana; Tustin and Irvine to measure noise levels, at the following locations:
MONITOR STATIONS
NMS-I:
NMS-2:
NMS-3:
NMS-6:
NMS-7:
Golf Course, 3100 Irvine Ave., Newport Beach
20152 S.W. Birch St., Santa Ana
2139 Anniversary Lane, Newport Beach
1131 Back Bay Drive, Newport Beach
17952 Beneta Way, Tustin
NMS-8: 1300 S. Grand Avenue, Santa Ana
NMS-9: 17372 Eastman Street, Irvine
NMS-21:223 Nata, Newport Beach
NMS-22:2338 Tustin Ave., Newport Beach
NMS-24:1918 Santiago, Newport Beach
The map in Figure 1 shows the general location of each permanent remote monitor station.
Figure 2 shows the Airport's "Noise Impact Area" for the previous year (October 1, 1997 -
September 30, 1998). The Figure 2 information was developed by Mestre-Greve Associates,
Inc., in consultation with John Wayne Airport. CNEL values measured for the period and current
digitized land use information were utilized to calCulate the land area acreages, number of
residences and estimated number of people within the "Noise Impact Area".
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t
FI GURE 2
$.i-~EE~r
DRIVE
UNIVE ~$lT¥ DRNE
BRISTOL STREET SOUTH
RMS 1
- L_
,,
O~C~A~D D~IVE
mmmmo~
UNIVERSITY DRIVE
LEGEND
Sin,ale Family Residential
Multi-Family Residential
(Number indicates dwelling units)
Incompatible Land Usc Arca: _~.1 acrcs or 0.045 square miles
Number of Dwellings: 126
Number of People: 31:5 (Based on 2..5 people per D. U.)
N~-~STRE GREVE
JOHN WAYNE AIRPORT
65 dB CNEL IMPACT AREA
OCTOBER 1997- SEPTEMBER 1998
JOHN WAYNE
AIRI'ORT
The State has approved several remedies of aircraft noise levels for noise sensitive property in the "Noise Impact
Area": homes can be acoustically insulated, purchased by the County, or rezoned for "other non-noise sensitive uses."
As part of the County's Santa Ana Heights Land Use Compatibility Program, approximately 77 general agriculture
(A-1) properties with residential land uses on Orchard, Acacia and Birch Streets were rezoned for Business Park Use
in October 1986. Each property was individually sold and subsequently converted to compatible land use. Between
1986 and 1993, 124 residences have been purchased or otherwise made compatible through the County's Purchase
Assurance Pro,am, Acoustical Insulation Program or Housing Relocation Program. In September 1993, the FAA
approved a grant to fund a voluntary Accelerated Acoustical Insulation Program (AAIP) in Santa Ana Heights. (The
current AAIP has been renamed "Santa Ana Heights Acoustical Insulation Program" with the acronym "SAH AIP".)
During the third quarter of 1998, an additional 10 residences have been made compatible through the County's SAH
AIP. A total of 224 residences in Santa Ana Heights have been purchased or otherwise made compatible through the
County's Purchase Assurance Program, Housing Relocation Program, Acoustical Insulation Program or SAH AIP.
TELEPHONE COMPLAINT CALLS (July 1, 1998 - September 30. 1998)
The Airport's Access and Noise Office receives and investigates noise calls and complaints from local citizens and all
other sources. During the period July 1, 1998 through September 30, 1998, the Office received 705 complaints from
citizens. This is an increase from the 566 complaints received last quarter. It is a decrease from the 1,410 complaints
received during the same quarter last year. Figure 4 shows the distribution of the quarterly telephone calls and
complaints from local communities.
FIGURE 4
HISTOGRAM BY COMMUNITY
350
300
250
20O
'150
100
5O
0
3'07
233
41 30 ~ 22
216 ~811 1141 2 21 ~~ 6
Community
One caller is responsible for 86% of the total calls from Balboa Island.
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TABLE 3
DAILY CNEL VALUES AT EACH MONITOR STATION
Date NMS Site
1 2 3 21 22 24 6 7 8 9
1 67.0 66.5 65.2: 60.9 59.6 61.8! 57.3 57.2 50.1 68.2
,
2 67.4 66.8 65.1 61.4 60.3 60.8 57.1 60.4 55.5 69.0
3 66.8 64.6 64.6 60.0 61.7 60.2 56.0 57.6 49.2 67.0
4 64.2 63.4 61.6 57.9 61.8 56.7 61.5 55.4 38.9 65.4
5 66.7 65.9 64.3 60.1 60.0 59.5 55.9 57.8 39.9 68.0
6 67.0 66.5 64.8 60.2 59.3 59.4 56.6 56.3 52.1 67.5
7 66.9 66.4 64.9 60.3 59.5 59.9 57.0 57.0 47.4 67.7
8 66.4 65.6 64.2 59.8 59.4 59.9 56.4 56.6 47.5 67.5
9 67.2 66.3 64.9 60.5 59.4 60.3 57.0 57.2 51.4 67.8
10 67.8 66.9 65.2 60.6 60.3 59.9 56.7 56.7 56.6 67.7
11 64.7 64.5 62.6 58.1 58.3 56.6 53.7 53.8 40.8 65.5
12 66.6] 66.2 64.6 59.9 60.3 60.0 55.5 58.3 38.2 67.9
13 66.7! 66.0 64.5 59.5 59.6 58.8 53.4 58.3 48.6 67.9
14 66.5 66.3 64.3 59.7 59.4 58.4 53.9 58.4 46.8 68.4
15 66.9 66.3 64.9 60.4 60.1 59.9 56.5 57.3 46.1 67.9
16 67.2 66.5 65.5 60.1 60.3 59.8 57.3 56.2 51.6 67.9
17 67.7 67.0 65.3 60.7 61.3 60.4 56.9 57.1 50.2 68.2
18 65.1 64.7 63.0 58.6 61.7~ 57.9 52.8 55.0 41.0 65.5
19 66.8 66.0 64.6 59.6 59.61 59.8 57.6 56.9 41.9 67.8
20 67.0 66.2 64.3 59.3 59.6! 59.8 55.7 55.9 51.2 67.5
21 66.5 65.7 64.4 59.7 60.5! 59.4 56.0 56.2 51.9 67.8
22 66.9 66.0 64.7 60.21 60.0 62.8 56.5 57.1 54.4 67.9
23 66.9 66.3 64.9 60.61 60.6 61.2 56.7 59.4 50.4 68.5'
24 68.1 67.4 66.0 61.4 62.1 62.0 57.8 59.4 47.8 68.4
25 65.4 64.9 63.4 58.9 61.4 59.4 55.9 55.9! 46.7 65.3
26 67.1 66.2 65.0 60.2~ 58.6 60.2 57.6 55.1 48.0 67.4
27 67.1 66.3 64.8 60.2 61.4 60.2 56.6 56.0 50.3 67.4
28 66.5 66.1 64.3 60.1 61.0 60.2 55.7 56.7 53.0 67.8
29 67.2 66.2 64.9 61.7 60.0 60.6 55.6 58.8 51.8 68.5
30! 67.3 66.7 65.4 61.7 60.5 61.2 57.4 57.4 48.9 68.4
31 67.9 67.2 66.1 64.6 60.3 60.7 57.0 56.4 51.6 67.7
P a y s ............... '~"i' .......... -3-~ ........... ~-~- ............ 3--1' ~- ........ -~':1' ............. '3~:i ..................... 3-:i-' 31 31
En. Av[l 66.8 66.1 64.7! 60.4 60.4 60.1 56.7 57.3 50.4 67.7
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-7-
TABLE 5
DAILY CNEL VALUES AT EACH MONITOR STATION
September 1998
Date NMS Site
1 '2 3 21 22 24 6 7 8 9
I 66.5 65.3 63.8 61.3 59.5 58.6 56.0 56.2 48.5 66.2
2 67.9 67.1 65.2 60.3 58.5 60.3 54.5 54.6! 49.5 67.0
3 66.5 65.2 63.4 59.8 60.6 58.7 55.6 54.8 52.2 68.0
4 67.7 66.31 64.5 60.0 60.5 60.6 57.1 52.8 54.9 67.7
5 64.7 63.~91 62.6 58.6 58.2 57.2 55.0 45.5 55.4 63.9
6 64.5 63.8 63.0 57.9 56.1 56.8 56.4 31.4 55.7 63.9
7 66.8 65.9 63.5 59.8 57.5 58.2 58.1 44.5 57.5 68.1
8 66.9 65.8 64.4 60.7 59.3 60.2 58.7 53.3 54.6 68.5
9 66.8 65.5 64.0 60.8 58.9 59.7 60.4 50.7 54.6 68.0
10 67.7 57.7 65.6 61.0 59.8 61.2 59.9 54.5 51.4 67.5
11 68.0 64.5 65.3 61.1 60.2i 61.2 60.2 55.9 53.6 67.9
12 65.1 64.7 62.6 59.2 56.01 57.3 58.0 51.5 54.8 64.7~
13 67.3 66.2 64.5 60.2 59.3: 59.4 59.1 52.9 53.0 66.7
14 66.4 65.5 63.8 60.0 59.3 58.6 55.41 53.6 55.2 67.6
15 66.9 65.9 64.2 60.0 59.3 59.4 56.3' 56.1 53.7 67.2
16 67.3 66.0 64.5 60.5! 59.0 59'.7 59.4 55.1 55.1 66.9
17 67.5 66.7 64.8 60.5! 58.2 59.8 60.2 53.8 55.5 66.5
18 68.2 66.8 65.0 61.1 59.0 60.0 57.0 56.6 54.9 67.5
19 64.4 63.3 61.8 65.8 57.4 57.2 55.0 51.5 53.6 65.3
20 66.6 65.2 63.9 59.9 59.1 59.2 57.3 46.9 53.0 68.3
21 66.2 65.0 63.6 59.8 59.0 59.1 56.3 56.1 51.6 67.8
22 66.1 65.3 63.2! 60.1 59.8 58.8 59.1 57.7 50.2 68.0
23 66.8 65.6 64.0: 60.6 58.7. 59.5 58.9 57.6 49.0 67.8
24 67.5 66.9 65.4 61.5 60.3 61.7 57.7 57.9 54.0 68.1
25 67.7 66.6 64.5 60.8 59.8 60.1 58.3 58.2 49.5 68.7
26 64.7 63.4 61.9 58.5 61.8 57.9 54.5 55.8 45.2 65.8
27 66.5 65.4 63.6 60.0 60.2 59.2 56.8 56.7 48.1 67.8
28 66.5 65.6 63.7 60.2 58.9 58.7 57.6 57.7! 50.8 67.9
29 66.4 65.5 63.7 60.5 59.3 59.5 56.3 58.1 52.8 67.4
30 66.3 65.41 63.6 60.7 59.8 60.1 56.5 58.7 45.6 67.7
i
Days 30! 30 30 30 30 30 30 30 30 30
En.Avg 66.7, 65.4 64.0 60.6 59.3 59.4 57.7 55.3 53.3 67.3
#N/A indicates insufficient data.
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TABLE 7
MEASURED AVERAGE SINGLE EVENT NOISE EXPOSURE LEVELS
Gommercial Glass AA
July - September 1998
Carrier AC Type # Deps NMS Site
1 2 3 21 22 24 6 7 8 9
Alaska Air B7374 210 Average 93.5 92.9 89.4 86.7 84.7 85.4 83.1 #N/A#N/A#N/A
Count (202) (177) (205) (125) (198)I (200) (199) (0) (0) (0)
America West A320 81 Average 91.3 91.2 88.8 85.2 85.5 83.7 79.9 #N/A'#N/A #N/A
Count (81) (71) (81) (53) (74)I (79) (45) (0) (0) (0)
B7373 821 Average 93.3 92.5 89.6 85.8 85.7 85.8 82.7 81.4 #N/A 89.6
Count (799) (713) (803) (503) (760)i (773) (758) (1) (0) (1)
American B757 762 Average 92.2 91.7 89.9 85.7 85.4 85.7 82.5 #N/A #N/A #N/A
Count (752) (654) (751) (457) (671)! (709) (640) (0) (0) (0)
Delta MD90 353 Average 91.9 91.0 89.2 83.1 82.2 84.6 81.8 #N/A#N/A 88.2
Count (342) (298) (345) (227) (325)1 (336) (288) (0) (0) (1)
Reno Air MD90 97 Average 89.5 88.3 87.6 81.3 82.4 82.7 81.3 #N/A #N/A#N/A
Count (94) (85) (95) (69) (91) (93) (42) (0) (0) (0)
Southwest B7373 181 iAverage 93.7 93.3 89.4 86.5 85.2 85.4 81.9 80.6 76.6 89.3
iCount ;(179) (164) (178) (112) (168) (175) (171) (1) (1) (1)
United A320 392~Average 91.7 91.1 89.8 85.2 85.6 85.2 83.0 #N/A#N/A 87.9
~Count (390) (346) (388) (225) (365) (380) (368) (0) (0)
B757 991Average 92.6 91.9 89.3 84.3 83.7 85.1 82.6 #N/A #N/A 89.2
~Count (97) (79) (97) (55) (94) (93) (91) (0) (0) (1)
MEASURED AVERAGE SINGLE EVENT NOISE EXPOSURE LEVELS
Commercial Class E
July - September 1998
Carder AC Type # Deps NMS Site
1 2 3 21 22 24 6 7 8 9
Alaska Air B7374 310 Average 91.4 91.1 88.0 85.9 84.6 84.4 81.0#N/A#N/A#N/A
Count (303)!(272) (304) (228) (294) (297) (290) (0) (0) (0)
I
America West B7373 579 Average 91.4 91.0 88.4 85.4 85.2 84.8 81.3#N/A#N/A 88.1
Count (566)1(497) (567) (362) (544) (560) (500) (0) (0) (1)
Delta MD90 91 Average 92.0 90.9 88.7 82.7: 82.5 84.3 81.3#N/A #N/A 92.4
Count (90) (78) (90) (57): (81) (85) (76) (0) (0) (1)
Reno Air MD90 593 Average 89.6 88.5 87.3 81.6 8.1.9 82.5 81.7 #N/A#N/A 92.1
Count (589) (521) (588) (373) (546) (545) (229) (0) (0) (1)
Southwest B7373 853 Average 92.1 91.9 88.2 85.6 84.7 84.6 81.7 80.7 81.9 90.9
Count (840) (741), (845) (552)i (812) (821) (768) (2) (2) (4)
United B757 791 Average 91.7 91.1 88.6 83.9 83.4 84.1 81.9#N/A#N/A#N/A
Count (783)I(701) (785) (522)(744) (760) (696) (0) (0) (0)
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TABLE 9
AIR CARRIER OPERATIONAL HISTORY
Carrier AC Type Year
1994 1995 1996 1997 1998
I
Alaska Air AS B7374 5,558 8,684! 8,798 7,718i 7,647
MD80 1,678 270 220 41
America West A'W A320 618 1,184 780 61 479
B7373 9,486 13,162 15,284 14,152 8,966
B757 630 318 858 1,332 261
American AA B7373 2
B757 11,342 9,490 8,542 8,970 8,369
MD80 3,052 666 926 610 1,172
Continental CO B7373 (1) 4,904 3,234 2,786 2,710 1,410
B7375 (1) 1,342
B7377 491
B757 ldO 588 659 724 414
MD80 10 6 4
Delta DL B7373 714 1,138 614 2
B757 4,342 3,368 1,452 2,202 2,227
MD90 2,944 3,058 3,8281
FedEx FM A300 16 18 8
A310 384 484 486 250:
Northwest NW A320 3,500 3,484 3,502! 3,408 3,113
B757 2!
Reno Air QQ MD80 346 4,272 4,072: 4,200 4,485
MD90 4,026 5,680 4,011
Southwest WN ~B7373 (1) 7,880 10,934 9,918 9,846 5,200
iB7375 (1) 4,514
TWA TW iB757 406 1,242 1,156
MD80 1,896 1,697 1,440 848 966
United UA IA319 (2) 475
A320 (2) 1,0521 2,348 2,524 2,024 1,947
B7373 1,966! 950 1,332 836 393
B757 8,616 7,856 7,766 8,274 8,863
BAE146 1,896
UPS 5X B757 16 504 504 476 506
USAir US B7373 718 880 842 1,444 1,574
B757 720 570 616
(1) Counts which separate B7373 and B7375 aircraft operations began in 1998.
(2) Counts which separate A319 and A320 aircraft operations began in 1998.
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TABLE 11
AIR CARRIER AVERAGE DAILY DEPARTURE HISTORY
Carrier AC Type Year
1994 1995 1996 1997 1998
Alaska Air AS B7374 7.614 11.896 12.019 10.573 14.011
MDB0 2.299 0.370 0.301 0.005
America West AW A320 0.847 1.622 1.066 0.008 0.868
B7373 12.995 18.030 20.880 19.386 10.952
B757 0.863 0.436 1.172 1.825 0.476
American AA B7373 0.003
B757 15.537 13.000 11.669 12.288 15.315
MD80 4.181 0.912 1.265 0.836 2.161
Continental CO B7373 (1) 6.7181 4.430 3.806 3.712 2.579
B7375 (1) 2.465
B7377 0.894
B757 0.137: 0.805 0.900 0.992 0.758
MD80 0.014 0.008 0.005
Delta DL B7373 0.978 1.559 0.839 0.003
B757 5.948 4.614 1.984 3.016 4.079
MD90 4.022 4.189 7.007
FedEx FM A300 0.022 0.025 0.015
A310 0.526 0.661 0.666 0.458
Northwest 'NW A320 4.795 4.773 4.784 4.668 5.700
B757 0.003
Reno Air QQ MD80 0.474 5.852~ 5.563 5.753 8.242
MD90 5.500 7.781 4.879
Southwest WN B7373(1) 10.795 14.978 13.549 13.488 9.520
B7375 (1) 8.271
TWA TW B757 0.555 1.701 2.121
MD80 2.597 2.325 1.967 1.162 1.766
United UA A319 (2) 0.875
A320 (2) 1.441 3.216 3.448! 2.773 3.564
B7373 2.693 1.301 1.820 1.145 0.722
B757 11.803 10.762 10.609 11.334 16.223
BAE146 2.597
UPS 5X B757 0.022 0.690 0.689! 0.652 0.927
USAir US B7373 0.984 1.205 1.150 1.978 2.883
B757 0.986 0.781 0.842~
(1) Counts which separate B7373 and B7375 aircraft operations began in 1998.
(2) Counts which separate A319 and A320 aircraft operations began in 1998.
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-15-
NOISE ABATEMENT COMMITTEE MEETING Continued
Q. Gail Reavis: Where does money come from?
A. Mark Esslinger of Orange County Planning and Development Services: About 80%
comes from FAA funding and the rest from JWA and the County.
Q. Gail Reavis: Does an easement have to be signed?
mo
Mark Esslinger: In some cases an additional easement will be signed to participate in
the insulation program. Some improvements to the homes include soundproof doors,
insulation, windows and air conditioning. John Leyerle showed the 65 dB CNEL
contour map in the quarterly report. He also explained the goals of the program to make
the area compatible with state standards.
5. Additional Questions
Q. lan Mackay of Foothill Communities Association: Is there a portable monitor available?
mo
John Leyerle: Along with the new permanent noise monitoring system, a portable
monitor was ordered. This monitor will have all the capabilities of a permanent monitor,
with the capability of being mobile. It is the size of a standard suitcase for the
electronics and a tripod for the microphone. It can run off house current or battery
power. It will be used to back up any existing monitor and to monitor different areas.
The portable monitor will be used with certain criteria applied, i.e., the area must be
suitable for monitoring, a secure area; for workload (time from office available) and for
what information will be used. The monitor will be ready for use sometime in 1999.
Q. Gail Reavis: Why is the arrival pattern new and lower?
mo
John Leyerle: There is construction around the Instrument Landing System (ILS)
antenna; for this reason, the FAA shut it down. Aircraft are using an alternate LDA
approach to JWA approved by the FAA and in place for many years.
mo
Jeff Thorstenson of FAA Control Tower: Instrument approaches are lower and
generally less friendly to residents; whereas, visual approaches tend to be higher and
more friendly to residents.
Q. Toni Callaway, resident of North Tustin: Why are aircraft not in their corridor? If they
are not moved, she will start a lawsuit against the County.
Ao
Jeff Thorstenson: FAA controls and separates aircraft within the airspace by spacing or
distance.not by putting them in what people call a corridor. John Leyerle stated that the
FAA, along with the pilot in command, has full control of the aircraft in flight.
6. Next Meeting to be Announced
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NAC Meeting 9-16-98
3/11/99
-17-
NOISE ABATEMENT PROGRAM
QUARTERLY REPORT
For the period:
October 1, 1998 through December 31, 1998
Prepared in accordance with:
AIRPORT NOISE STANDARD
STATE OF CALIFORNIA
California Administrative Code Title 21,
Chapter 2.5, SubChapter 6:
Division of Aeronautics
Noise Standards
Submitted by:
Loan Leblow
Interim Airport Director
John Wayne Airport, Orange County
INTRODUCTION
This is the 104th Quarterly Report submitted by the County of Orange in accordance with the
requirements of the California Airport Noise Standards (Califomia Administrative Code Title 21,
Chapter 2.5, SubChapter 6: Division of Aeronautics Noise Standards). Effective January 1,
1986, the criteria for defining "Noise ImPact Area". was changed from 70 dB to 65 dB
Community Noise Equivalent Level (CNEL). Under this criteria, John Wayne Airport currently
has a "Noise Impact Area."
NOISE IMPACT SUMMARY
Caltrans' Aeronautics Pro~arn has established guidelines in the California State Noise Standard
to control residential area noise levels produced by aircraft operations using the State's airports.
Under those guidelines, residential noise sensitive areas exposed to an average Community Noise
Equivalent Level (CNEL) of more than 65 dB define the "Noise Impact Area." John Wayne
Airport uses ten permanent remote monitoring stations (NMS) located in Newport Beach, Santa
Ana, Tustin and Ixvine to measure noise levels, at the following locations:
MONITOR STATIONS
NMS-I:
NMS-3:
NMS-6:
NMS-7:
Golf Course, 3100 Irvine Ave., Newport Beach
20152 S.W. Birch St., Santa Ana
2139 Anniversary Lane, Newport Beach
1131 Back Bay Drive, Newport Beach
17952 Beneta Way, Tustin
NMS-8: 1300 S. Grand Avenue, Santa Aaa
NMS-9:17372 Eastman Street, Irvine
NMS-21: 223 Nam, Newport Beach
NMS-22:2338 Tustin Ave., Newport Beach
NMS-24:1918 Santiago, Newport Beach
The map in Figure 1 shows the general location of each permanent remote monitor station.
Figure 2 shows the Airport's "Noise Impact Area" for the previous year (January 1, 1998 -
December 31, 1998). The Figxtre 2 information was developed by Mestre-Greve Associates, Inc.,
in consultation with John Wayne Airport. CNEL values measured for the period and current
digitized land use information were utilized to calculate the land area acreages, number of
residences and estimated number of people within the "Noise Impact Area".
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OR~vE
FIGURE 2
BRISTOL STREET SOUTH
RMS 1
I'
,
,
ORCHARD ORNE
I. ANE
U Nn/~'_ =:srrY DRNE
UNIVERSrI'Y DRrVE
l
LEGEND
Sin.~le Familv Residential Multi-Family Residential
t!: :i:i:i:i:i:i¢i:i:i:i:i:i:i:i:i:i:!:i:i:i:i:i:i:!¢i:i:i:i:i:!:i:i:i: :i::i::::::i:::
(Numb~ indicatez dwelling units)
Incompatible Land Use Area: 28.7 acres or 0.0~6 square miles
Number of Dwellings: 134
Number of People: 335 (Based on 2.5 people per D. U.)
J O HN WAYNE AIRP O RT
65 dB ~CNEL IMPACT AREA
JANUARY 1998. - DECEMBER 1998
JOHN WAYNE
AIRPORT
the number of dwelling units in the "Noise Impacted Area" from the previous twelve month period ending
September 30, 1998.
The State has approved several remedies of aircraft noise levels for noise sensitive property in the "Noise Impact
Area": homes can be acoustically insulated, purchased by the County, or rezoned for "other non-noise sensitive.
uses." As part of the County's Santa Ana Heights Land Use Compatibility Pro,am, approximately 77 general
agriculture (A-l) properties with residential land uses on Orchard, Acacia and Birch Streets were rezoned for
Business Park Use in October, 1986. Each property was individually sold and subsequently converted to compatible
land use. Between 1986 and 1993, 124 residences have been purchased or otherwise made compatible through the
County's Purchase Assurance Program, Acoustical Insulation Program or Housing Relocation Program. In
September 1993, the FAA approved a grant to fund a voluntary Accelerated Acoustical Insulation Program (AAIP) in
Santa Aha Heights. (The current AAIP has been renamed "Santa Ana Heights Acoustical Insulation Pro,am" with
the acronym "SAH AIP".) During the fourth quarter of 1998, no additional residences have been made compatible
through the County's 'SAIl AIP. A total of 224 residences in Santa Aha Heights have been purchased or otherwise
made compatible through the County's Purchase Assurance Program, Housing Relocation Pro,am, Acoustical
Insulation Program or SAH AIP.
TELEPHONE COMPLAIaNT CALLS (October 1. 1998- December 31. 1998)
The Airport's Access and Noise Office receives and investigates noise calls and complaints from local citizens and all
other sources. During the period October 1, 1998 through December 31, 1998, the Office received 300 complaints
from citizens. This is a decrease from the 705 complaints received last quarter. It is a decrease from the 337
complaints received during the same quarter last year. Figure 4 shows the distribution of the quarterly telephone calls
and complaints from local communities.
FIGURE 4
HISTOGRAM BY COMMUNITY ,
140
120
100
80
60
40
20
16 11 12 11 14
6 I 5 4' 2 I
One caller is responsible for 77% of the 130 calls from Balboa Island.
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TABLE 3
DAILY CNEL VALUES AT EACH MONITOR STATION
October 1998
Date NMS Site
1 2 3 21 22 24 6 7 8 9
1 67.3 66.0 64.6i 60.3 59.6i 60.8 57.0 59.0 46.5 68.0~
2 67.9 66.2 64.8 60.7 60.0 60.4 56.2 58.4 46.3 68.5
3 64.5 63.41 61.6 58.0 58.21 58.1 55.1 56.2 47.1 65.9
4 66.6 65.8 64.0 60.3 59.4 60.0 58.0 57.7 52.4 68.0
5 60.7 58.91 65.8 59.3 53.01 62.4 45.2 51.9 56.3 62.1
6 63.4 62.6 61.5 55.7 56.7 56.5 54.5 56.0 49.4 65.6
7 66.4 64.9 63.1 61.4 58.0 57.7 55.3 58.5 55.3 68.3
8 65.5 66.2 63.2 58.4 59.31 59.2 53.3 58.7 52.3 68.0
9 67.6 66.4 65.5 60.2 59.91 59.8 58.7 62.2 55.7 68.6
10 64.9 63.9 62.4 58.7 59.4 58.1 54.3 60.8 51.3' 65.5
11 66.5 65.6 63.7 59.9 58.9 59.8 56.5 60.5 53.8 68.3
12 66.4 65.8 64.1 60.6 60.1 59.8 58.5 59.3 53.5 68.0
,,, 13 65.6 64.9 63.1 59.4 59.2 59.0 54.4 60.0 48.7 67.9
14 67.1 66.2 64.0 60.8 59.1 60.3 56.3 59.3 48.1 '68.6
15 66.9 66.0 64.1 60.6 60.0 61.1 58.9 59.1 52.2 68.5
16 68.0 66.8 68.0 60.9 60.2 64.3 56.5 56.6 49.9 65.0
17i 62.1 62.5 61.3 55.6 55.5 57.6 57.0 50.3 50.3 63.3
18i 67.0 66.4 63.6 58.2 57.2 58.2 55.6 55.1 43.8 66.3
19! 66.6 65.7 64.2 59.0 58.3 58.6 55.0 57.7 53.0 67.2
201 65.4 64.7 63.1 58.9 59.1 60.1 55.2 58.2 50.2 67.7
21 66.5 65.3 63.8 60.4 58.5 59.7 57.7 58.0 51.6 68.3
221 67.2 66.1 64.4 60.1 59.5 60.8 56.0 57.5 51.4 67.8
231 67.9 66.8 65.0 60.3 59.4 60.3 59.3 55.8 '54.4 67.5
241 65.3 64.0 62.1 58.3 57.3 57.6 60.1 54.0 47.4 65.6
25i 67.3 66.0 64~6 60.6 59.8 61.1 60.7 56.5 46.9 67.9
26 67.0 66.1 64.6 60.8 60.7 60.9 58.3 57.5 55.3 67.6
27 66.4 65.5 64.2 60.4 60.5 59.8 58.5 57.7 52.0 67.4
281 66.6 65.7 64.2 60.3 60.0 61.9 61.1 58.0 51.8 67.9
29 66.6 65.3 63.5 59.8 59.5 60.8 57.7, 58.7 53.4 68.0
30 67.7 66.6 65.4 61.0 60.5 6!.5 59.2 59.6 52.7 67.8
31 65.2 63.9 62.3 58.5 60.2 58.5 56.4 54.0 54.0 65.4
Days 31 31 31 31 31 31 31 31 31 31
En.Avg 66.4 65.4 64.1 59.8 59.2 60.1 57.4 58.1 52.2 67.3
#N/A indicates insufficient data.
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TABLE 5
DAILY CNEL VALUES AT EACH MONITOR STATION
December 1998
Date NMS Site
1 . 2 3 21 22 24 6 7 8 9
1 67.9 67.2 65.31 58.7 #N/A 61.3 58.6 59.1 50.1 68.5
2 68.0 66.6 65.3 61.1 #N/A 61.0 57.2 58.1 53.3! 68.5
' 3 68.1 67.0 65.4 61.4 #N/A 61.41 57.9 59.6 44.8 68.61
4 67.1 66.3 64.2 60.6 #N/A 59.0~ 56.5 57.81 53.7 67.6
5 63.9 63.1 60.6 57.6 #N/A 57.1 56.3 54.2 48.1 64.8
6 60.5 58.0 66.8 60.9 #N/A 63.8 57.9 51.8 55.9 63.4
,
7 62.9 61.2! 66.3 55.4 #N/Al 62.2 47.2 '48.8 50.2 62.2
8 66.2 64.3 62.8 58.7 #N/A 57.6 54.6 56.0i 50.6 66.2
9 59.01 55.7 66.7 60.3 #N/A 69.1 59.5 64.6 60.1 63.5
10 63.8 63.6 62.4 55.0 #N/A 58.4 55.6; 52.6 48.8 65.1
11 66.4 65.3 60.3 58.1 #N/A 56.7 54.9 51.7 50.5 65.4
12 63.5 62.3 61.0i 54.8 #N/A 55.5 53.7 46.8 50.1 63.2
13 65,1 64.0 61.7 57.4 #N/A 56.7 52.4 53.8 53.51 65.8
14 66.1 65.0 63.2 59.6 #N/A 59.5! 58.7 56,6 47.4! 66.7
15 65.0 62.3 67.1 55.6 #N/A 63.9' 48.1 49.71 51.1 61.9!
16 60.4 59.7 66.7 55.1 #N/A 64.0 47.3 55.9 53.7 61.5'
17 66.5 65.4 64.8 59.3 56.1 60.0 55.9 56.7 51.9 66.8
18 67.4 65.6! 64.3 60.1 60.1 61.3 58.3 59.2 45.9 68.6
19 66.1 64.8 63.9 63.8 58.1 59.9 58.4 57.1 48.0 65.7
'20 65.9~ 64.7 63.6 61.0 58.9 59.9 56.71 57.4 42.5 67.6
21 60.5 55.9 65.9 52.1 53.6 61.8 45.4 45.5 52.3 62.8
22 66.8 65.2 63.5 59.4 59.0 59.1 56.0 54.7 52.2 66.7
23i 64.2 62.1 62.9: 54.7 57.8 59.8 49.4 51.2 47.0 66.3
24 65.1 63.9 62.7 56.6 59.4 59.1 51.6 50.7 51.9l 64.8
25 64.7 63.6 61.3 55.4 57.5 55.5 47.7 49.9 52.0 63.7!
26 65.4 63.7 62.1 56.5 58.8 57.1 58.7 51.5. 50.6 64.3
27 67.3 66.3 64.5 59.8 59.0 58.7 56.7 54.8 53.0 66.6
28 68.3 66.81 64.4 60.4 60.9~ 59.4 55.7 57.7 51.7 '67.2
29 70.3 68.61 69.7 64.2 59.5 63.2 58.7 56.3 49.2 67.4
30 67.9 66.5 64.9 60.1 59.0 59.8 55.2! 57.7 43.8 67.8
31 66.1 64.6 62.9 58.4 58.7 59.4 53.8 58.0 53.7 66.8
Days 31 31 31 31 15 31 . 31 31 31 31
En.Avcj 66.0 64.7 64.7 59.3 58.7 61.2! 56.0 56.6 52.1 66.1
#N/A indicates insufficient data.
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TA.B~.F. 7
MEASUR.ED AVERAGE SINGLE EVENT NOISE EXPOSURE-LEVELS
Commercial Class AA
October - December 1998
Carrier AC Type # Deps NMS Site
I 2 3 21 22 24 6 7 8 9
Alaska Air B7374 182 Average 93.7 92.9 89.2 86.6 85.1 85.5 83.6 82.3 81.6 88.9
Count (129) (139) (143) (121) (73) (144) (129) (10) (13) (37)
AmedcaWest A320 81 Average 91.1 90.8 88.6 85.1 85.4 83.6 80.3#N/A#N/A 84.7
Count (74) (70) (72) (64) (40) (73) (36) .(0) (0) (7)
B7373 831 Average 93.0 92.0 89.1 85.9 85.5 85.7 82.0 82.8 82.0 89.1
Count (691) (663)i(696) (613) (408) (700) (606) (38) (48) (109)
'~A. rnedcan B757 ??2 Average 91.7 91.1 89.5 85.5 85.5 85.8 82.3 81.7 82.3 87.3
Count (661) (635)'(666) (537) (360) (667) (545) (18) (32) (95)
Delta MD90 354 Average 91.7 90.7 88.7 83.4 82.1 84.6 81.8 82.5 81.9 88.3
Count (289) (285) (301) (250) (169) (302) (224) (12) (9) (42)
Reno Air MD90 91 Average 91.8 89.7 89.1 '83.0 8212 85.4 '83.1 82.0 80.7 87.1
Count (78) (75) (80) (65) (48) (78) (41) (3) (6) (11)
Southwest B7373 174=Average 94.0 93.2 89.1 86.1 85.4 85.6 82.1 82.9 82.6 8'9.1
Count (147) (147) (148) (125) (91) (150) (138) (5) (8) (22)
United A320 366,Average 92.3 91.4 89.8 85.5 85.6 85.6 84.6 80.6 80.4 86.7
Count (302) (293) (308) (265) (159) (307) (276) (10) (11) (51)
B757 47Average 91.6 90.8 88.4 83.9 83.7 84.4 81.7 #N/A 87.3 88.4
,Count (42) (41) (42) (38) (38) (42) (37) (0) (1) (5)
MEASURED AVERAGE SINGLE EVENT NOISE EXPOSURE LEVELS
Commercial Class E
October- December 1998
Carrier AC Type # Deps NMS Site
I 2 3 21 22 24 6 7 8 9
Alaska Air B7374 503 Average 91.1 90.7 .87.6 85.7 84.5 84.3 81.0 81.8 81.3 89.3
Count (438) (425) (439) (387) (268) (440) (394) (19) (33) (61)
AmedcaWest B7373 545 Average 91.5 90.8 87.8 85.2 84.8 84.7 81.4 81.5 81.4 87.4
Count (461) (449) (465) (403) (281) (468) (385) (8) (16) (68)
Delta MD90 91Average 91.0 90.2 87.9 82.0 81.0i 83.1 80.7 78.9 #N/A 88.3
, Count (77) (68) (76) (65) (44)i (80) (50) (1) (0) (11)
Reno Air MD90 670 Average 89.9 88.9, 87.3 81.8 81.8 82.7 81.0 79.8 81.9 88.2
Count (581) (559) (582) (488)I(349)!(574) (237) (17) (15) (81)
Southwest B7373 848;Average 92.4 91.8 88.0 85.4 85.0 84.8 81.5 81.0 81.0 88.3
Count (738) (714)(732) (658)'(455)i(732) (629) (21) (43)(108)
B7377 I Average #N/A #N/A #N/.~ #N/A #N/Al #N/A #N/A #N/A 78.8 88.8
Count (0) (0) (0) (0) (0)! (0) (0) (0) (1) (1)
United B757 878 Average 91.7 90.7: 87.9 83.8 83.2 84.2 81.5 82.8 79.9 86.2
Count !(757) (728)i (762) (657) (440)i (756) (646) (13) (25)I(109)
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TABI~E 9
AIR CARRIER OPERATIONAL HISTORY
Carder AC Type Year
1994 1995 1996 1997 1998
Alaska Air AS B7374 5,558 8,684 8,798 7,718~ 9,711
MD80 1,678 270 220 4
Amedca West AW A320 618 1,184 780 6! 645
B7373 9,486 13,1621 15,284 14,152! 14,886
:B757 630 3181 858 1,332i 261
American AA 'B7373 2!
B757 11,342 9,490i 8,542 8,970i 10,421
MD80 3,052 666, 926 610 1.417
Continental CO iB7373 (1) 4,904 3,234 2,786 2,710 1,412
I B7375 (1) 1,995
B7377 868
: B757 100 588 659 724 414
MD80 ,10 6 4
Delta DL B7373 714 '1,138 614 2
B757 4,3421 3,368 1,452 2,202 2,706
MD90 2,944 3,058 4,780
FedEx FM A300 16 18 12
A310 384 484 486 622
Northwest NW A320 3,5001 3,484 3,502 3,408 3,995
B757 2
Reno Air QQ MD80 346 4,272 4,072 4,200 5,422
.. MDg0 4,026 5,680 7,008
Southwest WN B7373 (1) 7,880~ 10,934 9,918 9,846 5,424
,' B7375 (1) 6,689
B7377 2
TWA TW B757 406 1,242 1,447
-' MD80 1,896 1,697 1,440 848 1,206
United UA A319 (2) 749
" A320(2) 1,052 2,'348 2,524 2,024 2,414
B7373 - 1,966 950 1,332 836 607
B7375 2
B757 8,616 7,856 7,766 8,274 10,849
BAE 146 1,896
UPS 5X B757 16 504 504 4761 628
USAir US B7373 718. 880 842 1,4441 1,942
. B757 720 570 616
(1) Counts which separate B7373 and B7375 aircraft operations began in 1998.
(2) Counts which separate A319 and A320 aircraft operations began in 1998.
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TABLE 11
AIR CARRIER AVERAGE DA~'.Y DEPARTURE HISTORY
Carder AC Type Year
1994 1995 1996 1997 1998
AlaskaAir AS B7374 7.614~ 11.896 12.019 10.573 13.307
MD80 2.299 0.370 0.301 0.005
America West AW A320 0.847 1.622 1.066 0.008 0.874
B7373 12.995 18.030 20.880 19.386 20.403
B757 0.863 0.436 1.172 1.825 0.356
American AA B7373 0.003
B757 15.537 13.000 11.669 12.288 14.263
MD80 4.181 0.912 1.265 0.836 1.959
Continental CO B7373 (1) 6.7181 4.430 3.806 3.712 1.932
B7375 (1) 2.742
B7377 1.184
B757 0.137 0.805 0.900 0.992 0.567
MD80 0.014 0.008 0.005
Delta DL B7373 0.978 1.559 0.839 0.003
B757 5.948 4.614 1.984 3.016: 3.705
'MD90 4.022 4.189' 6.542
FedEx FM A300 0.022 0.025~ 0.016
A310 0.526 0.661 0.666~ 0.852
Northwest NW A320 4.795 4.773 4.784 4.668, 5.471
B757 0.003
Reno Air QQ MD80 0.474 5.852 5.563 5.7531 7.441
MD90 5.500 7.781 9.592
Southwest WN IB7373 (1) 10.795 14.978 13.549 13.488 7.427
IB7375 (1) 9.167
B73/7 0.003
TWA TW !B757 0.555 1.701 1.986
!MDB0 2.597 2.325 1.967 1.162 1.647
United UA :A319 (2) 1.030
A320(2) 1.441 3.2161 3.448 2.7731 3.307
iB7373 2.693 1.301 1.820 1.145 0.830
iB7375 0.003
B757 11.803 10.762 10.609 11.334 14.860
i BAE146 2.597
UPS 5X B757 0.022 0.690 0.689 0.652i 0.860
USAir US B7373 0.984 1.205 1.150 1.978 2.660
'B757 0.986 0.781 0.842
(I) Counts which separate B7373 and B7375 aircraft operations began in 1998.'
(2) Counts which separate A319 and .6320 aircraft operations began in 1998.
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RMS 8
Figure
0 feet
R*IS 3
4.
JOHN WAYNE AIRPORT
1998 ANNUAL 60, 65, 70 AND 75
CNEL NOISE CONTOURS
JOl-l~ wAYNE
J.J.
VAN
RECEi ,
JUL 2 0 1999
COMMUNITY EV
Houq: N oc
, INC.
._ o
IolmJ. Van Houten, EE.
Consulting Engineer in Acoustics
June 17, 1999
Project File 2779-98
CITY OF TUSTIN
Community Development Department
300 Centennial Way
Tustin,.CA 92680
Attention: Ms. Elizabeth Binsack
Subject:
Review of John Wayne Airport Noise Abatement Program
Quarterly Reports for the 3rd and 4th Quarters of 1998
References:
1. "Data Evaluation and Aircraft Noise Impact Noise
Impact Study for the City of Tustin;" J. J. Van Houten
& Associates, Inc.; January 8, 1990
2. "Noise Abatement Program Quarterly Report for the
Period: July 1, 1998 through September 30, 1998;"
John Wayne Airport
3. "Noise Abatement Program Quarterly Report for the
Period: October 1, 1998 through December 31, 1998;"
John Wayne Airport
Dear Ms. Binsack,
As requested, we have reviewed the referenced quarterly reports for the
noise abatement program at John Wayne Airport. The following provides
our findings with regard to airport operations and their impact on the City
of Tustin:
3320 E. Chapman Ave.
#323
Orange, CA 92869
9491476-0932
FAX 949/476-1023
e
Referring to Figures 1 and 2, the average annual CNEL at station M-7
was 57.0 dB for 1998 based upon data for all four quarters. This is 1.1
dB higher than the average annual CNEL of 55.9 dB for 1997. (NOTE:
The noise contours for John Wayne Airport are based on average
annual CNEL values measured at each remote monitoring station.)
The average annual CNEL of 57.0 dB in 1998 reflects the continuation
of a modest upward trend in the aircraft noise exposure measured at
station M-7. This trend is illustrated in the following table:
CITY OF TUSTIN
Project File 2779-98
Year Average Annual CNEL
1994 56.1 dB
1995 56.4 dB
1996 56.8 dB
1997 55.9 dB
1998 57.0 dB
,
Referring to Figure 2, the number of noise complaints received from the Tustin/Orange area
in 1998 was inversely proportional to the average quarterly aircraft CNEL measured at
station M-7. In other words, as the CNEL increased, the number of complaints decreased.
However, the overall number of complaints received in 1998 was higher than in 1997, which
correlates with the increase in average annual CNEL.
.
As indicated in Item 1, above, the annual average CNEL measured at station M-7 was 57.0
dB based on information through the fourth quarter of 1998. This is slightly less than the 58
dB that was estimated for the station in the referenced aircraft noise impact study for the
Phase 2 Access Plan (Reference 1).
AIRCRAFT NOISE CONTOURS
In 1988, an exterior aircraft noise monitoring effort was conducted throughout the City of Tustin
by the John Wayne Airport Noise Abatement Office and by J. J. Van Houten & Associates, Inc.
(Reference 1). Aircraft-generated single event noise exposure levels (SENEL' s) were measured
at twelve locations in Tustin over a five-month period.
As a result of this effort, noise contours were developed for John Wayne Airport as they impact
the City of Tustin. Although the shape of the contours does not change (since flight tracks are
fixed), the value of the noise contours does change with different levels of operations at the
airport and different mixes of aircraft.
Figure 3 provides the approximate location of the John Wayne Airport noise contours for 1990
based on measurements obtained at monitoring station M-7 throughout the year. Referring to the
figure, the community noise equivalent level (CNEL) ranged from 53 to 59 dB in the City of
Tustin, with a CNEL of about 55 dB at station M-7.
Based on data through the fourth quarter, the annual average CNEL at station M-7 was 57.0 dB
in 1998. The existing and furore Phase 2 contours (based on 1998) are provided in Figure 4.
Referring to the figure, it is estimated that in 1998 the aircraft-generated CNEL ranged from 55
to 61 dB. This is well below the City, County, and State criteria of 65 dB for residential areas.
USE OF QUIETER AIRCRAFT AT JWA
As requested, we have analyzed the correlation between the increasing use of quieter aircraft at
JWA and the change in CNEL within the City of Tustin. The Federal Aviation Administration
(FAA) classifies aircraft into three categories based on noise levels. In order of decreasing noise
2 J. J. VAN HOUTEN & ASSOCIATES, INC.
CITY OF TUSTIN
Project File 2779-98
levels, there are Stage I, Stage II, and Stage III aircraft. John Wayne Airport has only permitted
Stage III aircraft since the early 1970's.
The airport has its own classification scheme for passenger aircraft. In order of decreasing noise
level, the~e are Class A, Class AA, and Class E aircraft. Table 1 provides the estimated number
of each class of aircraft that used the airport between the first quarter of 1997 and the fourth
quarter of 1998. Also provided is the measured average quarterly CNEL at monitoring station M-
7. Table 2 provides the same information, but the values have been normalized to 17,000 aircraft
operations (takeoffs and landings) per quarter. In this way, a correlation can be established
between the quarterly CNEL and the mix of aircraft types.
Referring to Table 2 and Fi.~ure 5, the percentage of quieter Class E aircraft using John Wayne
Airport was higher in the 4~ quarter of 1998 than in the 3rd quarter (about 36%). This increase in
Class E aircraft was offset by a decrease in the use of the noisier Class A aircraft. However, even
with this decrease in noisier aircraft the weighted average quarterly CNEL increased.
If you have any questions, please contact the undersigned at 949/476-0932.
Very truly yours,
J. J. VAN HOUTEN & ASSOCIATES, INC.
~A~~l~Eo~c~aOt;Sst, i Principal Consultant
~c. Wieland Associates
3 J. J. VAN HOUTEN & ASSOCIATES, INC.
(aP) "laN:3
-%
-%
LLI
Z
0
0
rn 58
-J- 57
o 56
m 55
m 54
0 53
~ 52
~51
I.Average Quarterly Aircraft CNEL, M-7 I
1Qtr97 2Qtr97 3Qtr97 4Qtr97 1Qtr98 2Qtr98 3Qtr98 4Qtr98
Quarter/Year
o~ 25,000
20,000
15,000
10,000
5,000
0
ITotal Quarterly Jet Operations, M-71
i:: i:i i i :::: 'ii: ''
' 'i
· · . . ... : · : : .:.' ....
- ;:: .':'. ;.; .':-. . . '.'. .'::. °.'.. .
:': ;i: ;.; ::;; ;';' ":' ;:;. · "". ·
;': ;.; ;-: '.". .... .,.. :.:.
:;: .':. :.; ;;:; ;~:: :::: .:.: . .
· .' ::.. : ; :-:, : ; :: ; -:.; .;.:
:': !.! :': :.:. :!:! !:!: ::1: ;:!'
· ',' ; ; · . .,., ,-.. ;.;. .... .;..
· ~. ~ '~- , -,: , .... . ,:: , .'.. , .'. ,
1Qtr97 2Qtr97 3Qtr97 4Qtr97 1Qtr98 2Qtr98 3Qtr98 4Qtr98
Quarter/Year
9O
~ 8O
O
z 7O
->'~ 60
t:: '~ 50
'" 40
· 0 30
,- 20
< 10
0
IAverage Quarterly Noise ComplaintsI
1 Qtr97 2Qtr97 3Qtr97 4Qtr97 1 Qtr98 2Qtr98 3Qtr98 4Qtr98
Quarter/Year
Figure 2.
'6
M-?
II
',, //
/ //
/
/ //
/ //
,7".-')
//
Figure 3. Approximate Location of John Wayne Airport
Noise Contours, 1990
M-7
/ II
/ II
//
//
/
/' //
.. '~ Ii
//'x.../ Ii
£
?-
6O
57
54
Figure 4. Approximate Location of John Wayne Airport
·
Noise Contours, 1998
-E~ E
CD
I i I
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
suo!:~eJod0 geJ0J!'~' J.0 JOqLunN
0
o
o
I