HomeMy WebLinkAboutOB 3 AIRPORT STATUS 03-01-93OLD BUSINESS NO. 3
3-1-91 A
A NDA
r�•4. 11 Y `fj
DATE:
FEBRUARY 16, 1993 Inter -Com vo�/
TO: WILLIAM A. HUSTON, CITY MANAGER
FROM: COMMUNITY DEVELOPMENT DEPARTMENT
SUBJECT: AIRPORT STATUS REPORT
RECOMMENDATION
Receive and file.
DISCUSSION
The Community Development Department has continued to monitor
airport issues. Since the last Airport Status Report to the
City Council on November 2, 1992, staff has reviewed the
latest John Wayne Airport Noise Abatement Quarterly Report by
_ the City's noise consultants. Additionally, staff has
attached a number of recent news articles concerning the
potential for locating an international airport to serve
Orange County residents at George Air Force Base.
J.J. Van Houten and Associates, Inc., Tustin's noise
consultants, prepared a review of the most recent County -
prepared John Wayne Airport Noise Abatement Program quarterly
report for the 3rd quarter of 1992. A Copy of their report is
attached.
For the third quarter of 1992 there has been a one decibel
incr-ase in aircraft -generated Community Noise Equivalent
Level (CNEL) at monitoring station M7 in Tustin. During the
same period, the average number of commercial jet operations
has increased but the actual 7,479 flights is below the normal
7,500 flights. The number of quarterly noise complaints for
Tustin/Orange has significantly decreased for this same time
period, which does not correlate with the increase in flights.
Based on data through the third quarter of 1992, the annual
average CNEL at station M7 is projected to be 56.3 dB in 1992.
This is about 1.0 dB less than the average annual CNEL of 57.5
dB for 1991. It is estimated that in 1992, the aircraft -
generated CNEL will range from 54 to 60 dB. This is below the
City, County, and State criteria of 65 dB for residential
areas.
City Council Report
Airport Status Report
February 16, 1993
Page 2
The consultant has again analyzed the relationship between
changes in CNEL and the number of quieter aircraft put into
service at John Wayne Airport. This analysis shows that the
percentage of quiet Class E aircraft decreased slightly for
the third quarter of 1992; however, the weighted average of
noise levels have decreased slightly.
As indicated in the last Airport Status Report, the
distribution of Class A, AA, and E aircraft (which are all
quiet, Stage III aircraft) at John Wayne Airport fluctuates
with carrier mix, flights offered, and airline choice.
Therefore, the number of Class E aircraft, which is the
quietest type, actually fluctuates over time: However, these
three classifications, which are unique to John Wayne Airport,
apply only to departure noise levels. In fact, some aircraft
classified as "E" are actually noisier on arrival than some
Class A and AA aircraft. Therefore the percentage of Class E
aircraft does not significantly affect noise levels at
Tustin's noise monitoring station. As a result, it is
difficult to correlate the types of aircraft flown with the
measured CNEL.
CONCLUSION
Because the issues discussed above are of considerable
importance to the City of Tustin, the Community Development
Department will continue to monitor airport issues unless
otherwise directed by Council.
(;�-
Anir6'2. Bonner
Associate Planner
Attachments:
RW:A8:kd\airpsta3.cc
(:WRiaieleY
Assistant Director of
Community Development
Report from J.J. Van Houten and Associates
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J. J. VAN HOUTEN & ASSO rES, Inc.
JOHN J. VAN HOUTEN, PE, Principal Consultant
DAVID L. WIELAND, Principal Engineer
ROBERT WOO, Senior Engineer
STUART TAY, Associate Engineer
January 29, 1993
CITY OF TUSTIN
Community Development Department
15222 Del Amo Avenue
Tustin, CA 92680
Attention: Ms. Rita Westfield
f - J.
cow"a Y` -vow%
1260 EAST KATELLA AVENUE, ANAHEIM, CALIFORNIA 92805
(714) 978-7018 (714) 635-9520 FAX (714) 93940648
Project File 2306-91
Subject: Review of John Wayne Airport Noise Abatement Program Quarterly
Report, 3rd Quarter 1992
Reference: 1. "Data Evaluation and Aircraft Noise Impact Study for the City of
Tustin," J. J. Van Houten and Associates, Inc., January 8, 1990
2. "Noise Abatement Program Quarterly Report for the Period: July 1,
1992 through September 30, 1992," John Wayne Airport
Dear Ms. Westfield:
As requested, we have reviewed the referenced quarterly report 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:
1. Referring to Figures 1 and 2, the aircraft -generated CNEL for the third quarter of
1992 was about 1 dB higher than during the second quarter CNEL at remote
monitoring station M7. Based upon data through the 3rd quarter, the average
annual CNEL at station M7 will be 56.3 dB for 1992. This is about 1 dB less than
the average annual CNEL of 57.5 dB for 1991. (NOTE: The noise contours for
John Wayne Airport are based on average annual CNEL values measured at each
remote monitoring station.)
2. Referring to Figure 2, there does not appear to be any correlation between the
average number of noise complaints received from the Tustin/Orange area and
the average quarterly aircraft CNEL or the average quarterly number of jet
operations. As indicated in the figure, the number of noise complaints was
significantly lower in the third quarter of 1992 than in the second quarter, even
though the average number of flights has increased slightly. Referring again to
1
number of each class of aircraft that used the airport betwee. the . first quarter of 1991
and the third quarter of 1992. Also provided is the measured average quarterly CNEL at
monitoring station M7. Table 2 provides the same information, but the values have been
normalized to 7,500 aircraft 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 Figure 5, the percentage of quieter Class E aircraft using John
Wayne Airport decreased slightly during the third quarter of 1992 to about 17% of the
aircraft mix. Referring again to Table 2, the decrease in Class E aircraft was offset by an
increase in the use of the noisier Class AA aircraft. Although the percentage of noisier
aircraft landing at John Wayne Airport increased during the third quarter, the weighted
average quarterly CNEL decreased slightly. This may be attributed to variations in the
aircraft landing profiles during the quarter (e.g., higher altitudes at monitoring station M7
or greater lateral distance from the station).
If you have any questions, please contact the undersigned at 714/978-7018.
Very truly yours,
J. J. VAN HOUTEN & ASS(
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Figure 3. Approximate Location of John Wayne Airport
Noise Contours, 1990
To: TUSTIN CITY COUNCIL
From: KATHY WEIL
Re: C.R.A.S. (Coalition for Responsible Airport Solutions) meeting
ORAS, now on a quarterly meeting schedule, met recently on January 21, 1993.
We are still watching for any
movement toward the commercialization of El Toro, but the whole process is definitely
in slow motion.
Back in July 1992, Senator Sam
Nunn delivered a speech on the floor of the Senate that supported the Goldwater -Nichols l
_ created clear lines of command authority and responsibility for the Armed Forces. Se ator called for
Act 1986 that
speech, however went even further in calling for further streamlining and efficiency of the Armed that there is too much
combining the services, where practical, into generic arms, i.e. air, water, land He stated
across the board. In light
redundancy in equipment and training and called for standardization in deas may be contagious. ont arts �iou equipment This is all conjecture on my part,
of the current climate of budget slashing, Senator Nunn sfor closure. Bottom line - CRAS is watching.
but I feel that if he has his way, El Toro could be re -scrutinized
Oran e County Cities Airport Authority - the Ken Delino - Newport Beach group) - they have
In regard to O.C.C.A.A. ( g
not met for over a year
now due to a lack of a quorum. Also SCRAA (Southern California Regional Airpo t At es
-has
the SCA airport
ity
G ort arm), who has been promising for months to address the issue of expanded Air Cargo a
failed to meet recently.
ua we all received a copy of "Air Cargo in the S CAG Region". The best news in
thaton
At the CRAS meeting in January,
tion that Norton Air Force Base, scheduled for closure m 1994, could be a good regional ned b an
report is the recognition
Air Cargo. Though Ontario Airport is closer to Orange County and therefore more desirable, facilities s growing very
to g
operation ceiling imposed by the State Air Resources Board. The need for additional
California's location on the edge ofthe Pacific Rim, making it a natural gateway for international at
rapidly, due to Southern
Unfortunately the delay in finding a suitable facility will force the trade activity to other regions or count
trade. Unfo Y
are capable and willing to handle the cargo traffic.
A recent article in the OrangtY
e Coun Register was a good update on the waning feasibility of George Air Force being Base
as THE nHigh Desert
" ew international airport. In reality, with the plans for the LA - Las Vegas High Speed Train
shelved, ort at Ata
the passenger count from Orange County seems dubious. Consequently, the hat the Victor Valley Economic
Council
ilanto
George renamed) could become just a small regional facility, which is probably�' a has not dramatically increased
( wanted all along, anyway. In the meantime, the passenger count at Jo Yn
er
as feared - probably due to the downturn in the economy, so the pressure for increased our rveill capacity
on
as quickly
there has been shelved for the present. All this is an effort to explain why Cho statingthatgroup still considered
Air Cargo. The article in the Register ended with a parting salvo from Ken Delin , g
El Toro the obvious answer to the airport dilemma.
The next CRAS meeting
will be on March 18, 1993 at the usual place - Administration Building in Leisure Worlvdill
vited. Our Annual meeting will be held on May 20,1993 - Leisure World. Program for Annualmeeting
v
anyone is m
be announced.