HomeMy WebLinkAboutSDP 93-01; Prime Auto Center; Site Development Plan (SDP) (2)I
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Dr. Leslie E. Penzes
Certified Acoustical Consultant, P.E.
5725 Linda Vista Rd. #7
San Diego, CA. 92110
(619) 295-0338
MR. Jeff Gibson
Associate Planner
PLANNING DEPARTMENT
City of Carlsbad
2075 Los Palmos Drive
Carlsbad, CA 92009
Dear Mr. Gibson:
Attached is my acoustical report entitled: "ACOUSTICAL
ENVIRONMENTAL STUDY FOR THE APPLICATION OF THE PROPOSED PRIME
CAR WASH AT PASEO DEL NORTE IN CARLSBAD". Your comments related to
the previous acoustical report on the same subject is also
attached.
For any further information please feel free to contact me; I
would be happy to supply it.
Sincerely:
Dr. Leslie E. Penzes
Registered Acoustical Consultant
of the City of Carlsbad, P.E.
May 28, 1993
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Richard A. Stupin
April 14, 1993
Page 3
IV.
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)5 . .! /'!: <{} J ' l''~J,.
PROJECf DF.SCRIP110N {f' c ,.-t '
Provide additional background information on the operations of the R.aily's, Lube-N-Tune,
and Prime Auto Wash in order for staff to evaluate onsite circulation and parking demands,
(i.e. number of employees per each land use during peale hour shifts, number of cars tuned,
washed, and served meals during peak hour intervals, the time it takes to service customers
from start to finish, etc.)
NOISE snmv: ~
1. Verify the professional qualifications of the acoustical consultant. The City requires
the following qualifications:
2.
a. Either 1: A degree in engineering, physics or a closely related field, and four
years acoustical engineering experience;
Or II: an equivalent combination of education and relevant experience as
determined by the City;
Either A: Is a Registered Engineer in the State of California;
-Or B: Has passed the Institute of Noise Control Engineering (INCE)
Professional Examination.
b. Is certified as an Acoustical Consultant by the County of San Diego, the
County of Orange or other jurisdiction with comparable requirements. --g ·:
-The methodology for detennining the noise levels\ a~ select points on the site is not
clear and there are inconsistencies in the report. fue text indicates that the noise
level for the 15 hp 90T Model dryer would ~~9 daA, at the exit of the tunnel,
~~er, Exhibit. 3 illusttates that at 20 feet from the dryer the noise level would
~ja dBA, and the Proto Vest Inc., specifications state it would be 83 dBA. To
a-void confusion the noise analysis should focus on the type of dryer system
proposed to be utilized in this carwash and the discussion of the others should be
eliminated. All the examples and specifications in the study illustrate noise levels
from dryers not located in a tunnel structure or located at the exit of a structure.
This project proposes to locate the dryer system 20 feet into a tunnel structure,
therefore, how were the noise levels determined at Points 1-3 on the site plan.
Projected noise levels must reflect the proposed conditions in terms of the actual
location and type of noise generating source.
Noise levels should be evaluated along the southern property at worst condition, the
outdoor seating area for the restaurant, and at the restaurant structure. The usable
outdoor seating area should be mitigated to 60 CNEL and below if there are noise
impacts, and all interior structures must be mitigate to 45 CNEL or below.
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ACOUSTICAL ENVIRONMENTAL STUDY FOR THE APPLICATION OF THE
PROPOSED PRIME CAR WASH AT PASEO DEL NORTE IN CARLSBAD
SUMMARY:
A noise environmental impact study was performed in order
to determine the noise level at the site of the planned
development project. Based on test data the noise level in
L,equ. at the present time is 65.3 dBA in L,equ. as
measured 196 Ft. from the western wire fence (property
line) of the project site. Based on a computer simulation,
the future noise level is 62.5 dBA in CNEL at the outside
dining room area of the restaurant. This high noise level
imposes some enviro.nmental restrictions on the const-
ruction of the car wash. The plans supplied by Mr. Arnold
J. Slaughter, Vice President of Carson Development, Inc.
(Fig. 1), provides the preliminary design for the car wash
project. Since the neighboring outside dining area of the
restaurant will be potentially impacted by a noise level
greater than 60 dBA in CNEL some mitigation is required
for the project (Ref. 3).
RECOMMENDATIONS:
. To reduce the noise level below 60 dBA in CNEL, a 6 Ft.
high noise barrier is required at the eastern side of the
parking lot between the prime car wash and the restaurant
(Alternate 1) or as an alternative, a 6 Ft high noise
barrier at the western side of the outside dining area
of the restaurant (Alternate 2), (Fig. 1) .
. An Alternate 3 is also considered, when the noise
mitigation of the Mobil's car wash will be constructed
by Mobil on their own lot (Fig. 6).
A noise barrier measuring 6 feet in height is recommended.
The noise barrier can be a concrete or bri~k structure, or
a wood frame covered by stucco on both sides, or plastic
or glass measuring 1/4" thick.
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. The car wash can be the 15 HP models, 90T or 90SX with or
without the silencer.
Since the proposed noise barrier will reduce the noise
level to less than 60 dBA in CNEL outside of the
restaurant, using normal construction practices the noise
level in the restaurant will be 45 dBA or less in CNEL.
Therefore, the noise limit of 45 dBA in CNEL inside of the
restaurant is not violated (Ref. 3) .
. As was observed, measuring the noise 196 Ft from the
western wire fence (parking lot between the car wash and
restaurant) the noise level is 65.3 dBA and it does not
drop moving east on the lot. It was discovered that an
extra noise creates this phenomenon and this is gene-
rated most likely by the adjacent Mobil's car wash. To
mitigate this extra noise either Mobil will be respon-
sible, or to avoid any delay on the current project, a 6
Ft high noise barrier could also be erected at the
northern side of the outside dining area of the restaurant
(Fig. 1).
Dr.Leslie E.Penzes
Registered Acoustical Consultant
of Carlsbad, P.E.
May 28, 1993
2.
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DISCUSSION
The recommendations made as a result of this study are based on
sound measurements taken at the site of the planned prime car wash
project and the related computer simulations. For the computer
simulations the required noise level information for the car wash
was obtained by Mr. Arnold J. Slaughter, Vice President of Carson
Development, Inc. and the traffic information was obtained by
CALTRANS (References 4 and 5).
EXTERIOR NOISE MEASUREMENTS
Instruments
For the exterior noise measurements, a Quest 1800 Sound Level
Meter Type 1 ( Serial # HP0030025 ) with the accessory was used.
The accessory included the Sound Level Calibrator by Quest Type
CA-22 (Serial# J 0040030). The sound instrument was calibrated
before the test and checked before each measurement.
Field Test
Measurements were taken in the late afternoon (between 5:30 PM
and 7:04PM). Table 1 presents the results of the measurements as
measured at the western wire fence on the site facing Highway #5
and at the future location of the car wash.
Based on the measurements, the measured value of L,equ. for
free field is (Table 1, Mean) 8 Ft. from the western wire fence:
Mean, Facing Highway #5 = L,egu. Measured, Average = 69.2 dBA
Table 1 also provides the measurements at the future location
of the car wash (96Ft from the western wire fence), which indi-
cates a drop of 3.8 dBA. This noise reduction can be explained by
Highway #5 approximately 30 Ft below the site, which creates an
earthberm effect. At this location the measurements indicate a mean
noise level in hourly equivalent:
Mean, Middle of Site = L,egu. Measured, Average = 65.4 dBA
3.
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Table 2 shows the measurements at the eastern part of the
project site at the location of the parking lot between the car
wash and the restaurant. The measured higher noise values are due
to the operation of a car wash at the adjacent lot. The forthcoming
computer simulation will provide further explanation of this data.
The measurements indicate that the noise level in L,equ. is:
Mean, Eastern Part of Site = L,egu, Measured, Ave. = 65.3 dBA.
This noise level will also be expected in the neighborhood of
the restaurant without proper mitigation. However, as it will be
shown that this noise level is not created by the current project.
COMPUTER SIMULATION
Due to the limited measurements (Tables 1 and 2) and the
requirement of having to predict the present and future value of
L,equ. and CNEL, computer simulations and predictions are required.
Table 3 presents the input and output for the eight lane road
(References 1 and 2). To simulate the test data of Table 1, the
following steps were taken. According to CALTRANS (Ref. 4) the
present value of ADT is 151,000 Vehicles/Day and the peak traffic
volume was estimated based on the formula suggested by Wyle' s
Report (Ref.6):
Peak Traffic= 0.87{ADT)/15 = 0.87*151,000/15 = 8758 Vehicles/Hour
The traffic mixture of cars, medium and heavy trucks is
obtained according to Ref. 5 and an average speed of 55 MPH was
applied. Table 4 provides a noise level of 69.9 dBA in L,equ. This
value is somewhat higher than the measured value of 66.2 dBA (5.5
%) . On Table 5 with an estimated traffic volume of 7360
Vehicles/Hour (19%), the calculated noise level is 69.19 dBA in
L,equ., which shows an excellent correlation with the test data
{Table 1) .
Applying the same traffic information Table 6 provides a noise
level of 66.66 dBA in L,equ. at the middle of the outside dining
area ( Fig. 1, trellis).
It should be noted that both of these noise levels must be
further reduced due to the effect of Highway #5 which runs in a
valley (earthberm).
Based on the traffic information obtained by CALTRANS the
future traffic volume is 200,000 ADT. Table 7 provides the noise
level at the outside dining area applying traffic mixture of cars
4.
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(93%), medium (3. 3%) and heavy trucks (3. 7%) as before and for
daily distribution of 76%, for evening distribution of 11 % and for
night distribution of 13%. Based on Table 7 the noise level in CNEL
is:
CNEL,Future,Outside Dining Area = 69.5 dBA
Earthberm and Noise Barrier
To account for the effect of the noise generated by Highway #5
at the project site and to consider also mitigation the computer
method of noise barriers is introduced (References 1 and 2).
Table 8 presents the input and output of the noise barrier
program (Ref. 's 1 and 2) . Table 9 shows the noise reduction
produced by an earthberm estimated by an elevation of 30 Ft. as:
Noise Reduction = 9.5 dBA
Applying this noise reduction to the noise level determined at
the outside dining area of the restaurant the hourly equivalent is:
L,egu. = 66.6 -9.5 = 57.1 dBA
This should be the noise level measured at the eastern part of
the project without the noise created by the adjacent car wash.
The future value of CNEL at the outside dining area applying
the effect of earthberm is:
CNEL, Future, earthberm = 69.5 -9.5 = 60 dBA
Since, this noise level will be further increased by the
introduction of the new proposed car wash, mitigation will be
required.
NOISE LEVELS OF CAR WASH
Fig. 1 provides the layout of the development including the
car wash. Fig. 2 shows the noise levels around a 90XS Stripper.
Fig. 3 illustrates the concept of the Silencing Package for the 15
HP Stripper. Fig. 4 provides the noise reduction of a Standard 15
HP Stripper as a function of distance. Fig. 5 shows the noise
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reduction due to distances for the 15 HP Strippers, Models 90T, 90T
with silencer and Model 90XS with silencer. The noise levels of
Fig. 4 and Fig. 5 are for the Stripper without Silencer are
identical (Model 90T without Silencer) .
The silencer reduces the noise by 5 dBA for Model 90T and the
noise reduction is 9 dBA for Model 90XS.
The noise levels on Fig. 4 and Fig. 5 (Model 90T without
silencer) can be calculated by the following formula:
Noise Level of car Wash= 94-20LOG{(5.5 + Distance)/5.5}
Distance >= 10 Ft.
Table 10 shows a comparison of the calculated noise levels by
the test data. As this comparison shows the maximum error is 5%.
For larger distances the above formula is corrected by this
error as:
Noise Level of Car Wash, Corr.={94-20LOG[(5.5+Distancef5.5)}/1.05
Distance >= 100 Ft.
Applying this formula the noise level of the 15 HP Stripper
without silencer at a distance of 150 Ft, which is the distance
between the car wash and the outside dining area is:
Noise Level, 15 HP = {94-20LOG[(150+5.5)/5.5)}/1.05 = 61.87 dBA
The noise level at the outside dining area for the Model 90T
with silencer is:
Noise Level, 90T with Silencer = 61.87-5 = 56.9 dB A
The noise level of Model 90XS with Silencer at the location of
the outside dining area is:
Noise Level, 90XS with Silencer = 61.87-9 = 52.3 dB A
Combining the noise level of the lowest calculated value by Model
90XS with silencer is:
CNEL, COMBINED = 10LOG( 10A5.23+10A6} = 62.5 dBA
Obviously mitigation is required, since the computed noise level
of 62.5 dBA in CNEL is higher, than the noise limit of 60 dBA in
CNEL set by the City of Carlsbad.
6.
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MITIGATION
Alternative #1.
To reduce the noise level created by Highway #5 and the from the
car wash a 6 Ft. high noise barrier must be erected on the eastern
side of the parking area between the car wash and the restaurant
(Fig. 1).
Table 11 provides the noise reduction of the combined earthberm
and noise barrier at the location of the outside dining area as:
Noise Reduction, Combined = 12.67 dBA
Applying this value to the CNEL for the future noise level
determined previously, the noise level in CNEL from Highway #5 at
the outside of the dining area is:
CNEL, Earthberm, Barrier = 69.5-12.67 = 56.8 dBA
Table 12 shows the noise reduction for the car wash due to the
effect of a 6 Ft. high noise barrier:
Noise Reduction, Car wash = 5.35 dBA
Assuming that the 15 HP Stripper without silencer is used,
the noise level in CNEL due the noise barrier at the outside dining
area is:
CNEL, Car wash = 61.87-5.35 = 56.5 dBA
The noise created by Highway #5 and the car wash must be
combined as:
CNEL,Comb. Outside Dining= 10LOG( 10A5.68+10A5.65) = 59.6 dBA
This value is lower than the noise limit of 60 dBA of the City
of Carlsbad. Applying the 15 HP Stripper with silencer the noise
level in CNEL will be even less, than determined above.
Alternative #2.
As another possibility in order to create better visibility
of the car wash from the street, instead of a the noise barrier at
the eastern side of the parking lot, it is recommended a noise
barrier be placed at the western side of the outside dining area.
7.
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Table 13 provides the noise reduction of the combined earthberm and
noise barrier at the location of the outside dining area as:
Noise Reduction, Combined= 13.2 dBA
Applying this value to the CNEL of the future determined
previously, the noise level in CNEL from Highway #5 at the outside
of the dining area is:
CNEL, Earthberm, Barrier= 69.5-13.2 = 56.3 dBA
Table 14 shows the noise reduction for the car wash due to the
effect of a 6 Ft. high noise barrier:
Noise Reduction, Car wash = 5.44 dBA
Assuming that the 15 HP Stripper without silencer is used,
the noise level in CNEL due to the noise barrier at the outside
dining area is:
CNEL, Car wash = 61.87-5.44 = 56.4 dBA
The noise created by Highway #5 and the car wash must be
combined as:
CNEL,Comb. Outside Dining= 10LOG( 10~5.63+10~5.64) = 59.3 dBA
This value is lower than the noise limit of 60 dBA of the City
of Carlsbad. Applying the 15 HP Stripper with silencer the noise
level in CNEL will be even less, than determined above.
CONCLUSION
Erecting a 6 Ft high noise barrier at the eastern side of the
parking lot between the car wash and the restaurant, any type of 15
HP Stripper car Wash with or without Silencer can be used and the
noise level in CNEL at the location of the outside dining area of
the restaurant will be less than 60 dBA. Therefore the noise limit
of 60 dBA of the City of Carlsbad will not be violated.
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REFERENCES
1. (U.S.) Federal Highway Administration, Washington D.C. Dec.
1978, P881-194227.
2. DEPARTMENT OF TRANSPORTATION, Office of Transportation Labo-
ratory: "California Vehicles Noise Emission Levels''·
(Calveno) Feb. 28, 1985.
3. Review Comments of the Acoustical Study submitted by Carson
Development Inc.
4. CALTRANS: "Traffic Volumes California state Highways, District
11, 1979-1991.
5. CALTRANS: "1990 Annual Average Daily Truck Traffic on the
California State Highway System". November 1991.
6. Wyle Laboratories. Development of Ground Transportation System
Noise Contours for the San Diego Region. Wyle Research Report .
. WCR 73-8. Dec. 1973. Jack w. swing.
9.
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Table 1. MEASUREMENTS
Facing Highway #5 at the Western Fence
RESET
Time(PM)
6:40
6:45
6:47
6:50
6:52
6:55
7:00
7:05
L,equ
(dBA)
Start of
Measurement
69.0
68.7
69.1
69.4
69.3
69.4
69.4
Location of Instrument
(Ft)
X = 30
y = 8
Location of Instrument: X = 30 Ft from the corner of the western
property line
Y = 8 Ft being the distance between the
instrument and the western property
line
L.egu. ,Mean = (69.0+68.7+69.1+69.4+69.3+69.4+69.4)/7 = 69.18 dBA
= 69.2 dBA
Reset
Time (PM)
5:30
5:35
5:37
5:40
5:45
5:50
L,equ.
(dBA)
Start of
Measurement
65.9
64.9
65.7
65.2
65.1
Location of Instrument
(Ft.)
X = 40
y = 96
Location of Instrument: X = 40 Ft from the southern property line
Y = 96 Ft, being the distance between the
instrument and the western property
line
L,egu .. Mean = (65.9+64.9+65.7+65.2+65.1)/5 = 65.36 dBA = 65.4 dBA
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Reset
Time(PM)
6:00
6:05
6:15
6:20
6:25
6:30
Table 2. MEASUREMENTS
Eastern Side of the Project
L,equ.
(dBA)
Start of
Measurement
63.2
65.5*
65.7*
65.7*
66.5*
Location of Instrument
(Ft.)
X = 40
y = 196
Location of Instrument: X = 40 Ft from the southern property line
Y = 196 Ft being the distance between the
instrument and the western property
line
L.egu .. Mean= (63.2+65.5+65.7+65.7+66.5)/5 = 65.32 dBA = 65.3 dBA
* = Extra Noise due to the Operation of Car Washer at Adjacent
Property
1 LOAD"C~.LVE"03.EAS"1'a hit 1/A
I G;:
T-I:i 100-150
~ ~>1 F.~.:: .Z:,N.ALY'TICAL PREDICTION OF HJ:C~:F.'i
:, JQ PI<~i CJ.,-i:.,':JI:NO EfHSSIOi'J A:lu TEE FL:D:L?..;-,,~.
1~CJISL, Elc.:I-rl' L!~r<;:s
I J 13 .RI::-: AWE'J=Autos 1 Host-Nearest
115 PE~I ANN=lmtos 1 Nearest
HlGI-I';·I.'\Y ADl;IST£\ATIOl-1 t:IODEL
116 REM ANM=Autos 1 Mid-Near I 120 REr1 AN=Autos 1 Near
130 REM AF=Autos 1 Far
131 REM AFM=Autos 1 Mid-Far
I 135 REM AFF=Autos,Farest
137 REM AFFF=Autos,Most-Farest
138 REM MNNN=Medium Trucks,Most-Nearest
140 REM MNN=Medium Trucks,Nearest I 141 REM MNM=Medium Trucks,Mid-Near
142 REM MN=Medium Trucks,Near
143 REM MF=Medium Trucks,Far
I 144 REM MFM=Medium Trucks,Mid-Far.
145 REM MFF=Medium Trucks,Farest
147 REM MFFF=Medium Trucks,Most-Farest
I 150 REM HNNN=Heavy Trucks,Most-Nearest
Ok
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1LIST 2RUN 3LOAD" 4SAVE" 5CONT
LIST 151-205
152 REM HNN=Heavy Trucks,Nearest
154 REM HNM=Heavy Trucks,Mid-Near
155 REM HN=Heavy Trucks,Near
156 REM HF=Heavy Trucks,Far
160 REM HFM=Heavy.Trucks,Mid-Far·
161 REM HFF=Heavy Trucks,Farest
6,11 LPT1 7TRON
170 REM HFFF=Heavy Trucks,Most-Farest
174 REM SANNN=Speed of Autos,Most-Nearest
176 REM SANN=Speed of Autos,Nearest
177 REM SANM=Speed of Autos,Mid-Near
180 REM SAN=Speed of Autos,Near
190 REM SAF=Speed of Autos,Far
191 REM SAFM=Speed of Autos,Mid-Far
195 REM SAFF=Speed of·Autos,Farest
197 REM SAFFF=Speed of Autos,Most-Farest
198 REM SMNNN=Speed of Mid-Trucks,Most-Nearest
200 REM SMNN=Speed of Medium Trucks,Nearest
201 REM SMMN=Speed of Medium Trucks,Mid-Near
202 REM SMN=Speed of Medium Trucks,Near
203 REM SMF=Speed of Medium Trucks,Far
205 REM SMFM=Speed of Medium Trucks,Mid-Far
Ok
8TROFF 9KEY OS CREE
I
I :~co::::-?Ci-,-255
r· s_:_.·--I~==Sl;=-~--~-o .....
SY.i~··rr=-:::~C-~·~: c)~~ I_·=:\~~ .~.t~::_ rj__ ~~(. :~.
I
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~ .i ~
.::::~.:.!l\;ir==SJ:JC<::c1 0~ I~:-~=--'/Y ~~--~~-.. L~.:_:-r-'~-:~:: --~-:~ -=~-L:::.:.;~c
:? 1 G P.~~~·i S~-~~-;·::..=~-)~.J:::r:3Ci o~ 1--1;~·~·_-.;_,-,,,:-rJ.":c1...1:::::-c::, ~~ -·-:-: -;_-c·::~::-~:
D,,[·'-';1· C''TJ<'''1--r~-,-=:,-crl of' I-Te>-v~-'Irur·[-,,; -i(_--''ec::r g:J'_j-Cl-..._",j_'--W£-1·.=..::....._ ..~-..&.'--·;...l.v_j -_.,~ .. '---I~• . ....L • .._t
2~0 REI Sf-il'i=Spc:>od o'i: Heavy Trucks,lJez,r
230 REM SHF=Speed of Heavy Trucks,Far
231 REM SHMF=Speed of Heavy Trucks,Mid-Far
235 REM SHFF=Speed of Heavy Trucks,Farest
I 237 REM SHFFF=Speed of Heavy Trucks,Most-Farest
238 REM VANNN=Volume of Autos,Most-Nearest
240 REM VANN=Volume of Autos,Nearest
241 REM VANM=Volume of Autos,Mid-Near
I 242 REM VAN=Volume of Autos,Near
243 REM VAF=Volume of Autos,Far
245 REM VAFM=Volume of Autos,Mid-Far
I 246 REM VAFF=Volume of Autos,Farest
248 REM VAFFF=Volume of Autos,Most-Farest
254 REM VMNNN=Volume of Medium Trucks,Most-Nearest
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LIST 255-330
256 REM VMNN=Volume of Medium Trucks,Nearest
257 REM VMNM=Volume of Medium Trucks,Mid-Near
258 REM VMN=Volume of Medium Trucks,Near
259 REM VMF=Volume of Medium Trucks,Far
260 REM VMFM=Volume of Medium Trucks,Mid-Far
261 REM VMFF=Volume of Medium Trucks,Farest
263 REM VMFFF=Volume of Medium Trucks,Most-Farest
274 REM VHNNN=Volume of Heavy Trucks,Most-Nearest
276 REM VHNN=Volume of Heavy Trucks,Nearest
277 REM VHMN=Volume of Heavy Trucks,Mid-Near
280 REM VHN=Volume of Heavy Trucks,Near
290 REM VHF=Volume of Heavy Trucks,Far
291 REM VHFM=Volume of Heavy Trucks,Mid-Far
295 REM VHFF=Volume of Heavy Trucks,Farest
297 REM VHFFF=Volume of Heavy Trucks,Most Farest
300 REM B=Angle,Total Angle(Hard site);computed Integrated Angle(Soft Site)
320 REM DO=Reference Distance
330 REM D1=Arbitrary Distance,Most-Nearest
LIST 331-400 ',
336 REM D3=Arbi.trary-Distance,Nearest
337 REM D4=Arbitrary Distance,Mid-Near
338 REM D5=Arbitrary Distance,Near
339 REM D6=Arbitrary Distance,Far
340 REM D7=Arbitrary Distance,Mid-Far
341 REM D8=Arbitrary Distance,Farest
343 REM D10=Arbitrary Distance,Most-Farest
349 REM A=Site Hardness
350 REM G=Grade(%)
360 REM AB=Adjustment of Building or Coverage
362 REM Lij=LeqjH:EQUIVALENT SOUND LEVEL(dBA) FOR A CLASS OF VEHICLES
364 REM WHERE i=1,2,3 (AUTO,MEDIUM TRUCK,HEAVY TRUCK)
365 REM WHERE j=1,2,3,4 (Most-Nearest,Nearest,Mid-Near,Near)
366 REM WHERE j=6,7,8,9 (F~r,Mid-Far,Farest,Most-Farest)
367 REM D=PERCENT OF DAYTIME TRAFFIC
368 REM E=PERCENT OF EVENING TRAFFIC
369 REM N=PERCENT OF NIGHTTIME TRAFFIC
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~-' '
' . r,
SJ,S~,8;,89,?9,89,89
~-.1\~ ~::~R \7;--.r__jc_ss f'.J? s:.;FFF
? 89
I:NTER VALGES FO~\. S."l~iiiN I SHNN I SHNMI SHN I SHF I SHH11 SHFF
? 89189189,89139,89,89
L!T .21.:.: VALUES FOR SHFFF
'7' 89
ENTER VALUES FOR VANNN,VANN 1VANM,VAN 1VAF 1VAFM,VAFF
? 101811018,1018,1018,1018,1018,1018
ENTER VALUES FOR VAFFF
? 1018
ENTER VALUES FOR VMNNN,VMNN,VMNM,VMN,VMF,VMFM,VMFF
? 36,36,36,36,36136136
ENTER VALUES FOR VMFFF
? 36
ENTER VALUES FOR VHNNN 1VHNN 1VHNM 1VHN 1VHF 1VHFM 1VHFF
? 41141141,41141141,41
1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6 111LPT1 7TRON
ENTER VALUES FOR SHNNN 1SHNN 1SHNM 1SHN 1SHF 1SHFM SHFF
? 89,89189189 189 189 189 I
ENTER VALUES FOR SHFFF
? 89
ENTER VALUES FOR VANNN,VANN,VANM,VAN 1VAF 1VAFM 1VAFF
? 10181101811018,1018110181101811018
ENTER VALUES FOR VAFFF
? 1018
ENTER VALUES FOR VMNNN 1VMNN 1VMNM 1VMN VMF VMFM VMFF
? 6 3 I I 1 • 3 1 6136136136 136 136
ENTER VALUES FOR VMFFF
? 36
~NTER VALUES FOR VHNNN I VHNN I VHNM, VHN I VHF I VHFMI VHFF
. 41,41,41,41141141,41
ENTER VALUES FOR VHFFF
? 41
ENTER VALUES FOR B,DO,D1,D3,D4,D5,D6
? 180,151121.41124.91128.6,132.2,142
ENTER VALUES FOR D7 1D8 1D10
? 145.6,149.31152.9
ENTER VALUES FOR D,E,N
? 110,0
ENTER VALUES FOR A,G 1AB
? 0.210,0
8TROFF 9KEY OS CREE
I 'fo.bl~ 4/S
I
LOANNN= 72.83632
LOAFF= 72.83632
813=-2.65551 811=-2.65551
823=-17.16996 821=-17.16996
833=-16.60515 831=-16.60515 I 817=-2.65551 818= 0
827=-17.16996 828= 0
837=-16.60515 838= 0
I 815=-2.65551 816=-2.65551
836=-16.60515
AD1=-11.34168 AD2=-11.71436
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AD6=-11.84484 AD7=-10.89753
L13= 59.13516 L11= 58.83913
L23= 51.68877 L21= 51.39274
L33= 56.17749 L31= 55.88146
L15= 58.98302 L16= 58.33597
L35= 56.02535 L36= 55.37831
L17= 59.28328 L18= 0
L27= 51.83689 L28= 0
L37= 55.88146 L38= 0
LEQH(COMBINED)= 69.96843
CNEL= 69.96843
ENTER VALUES FOR D,E,N
?
!< LOANN= 72.83632
LOAFM= 72.83632
812=-2.65551 814=-2.65551
822=-17.16996 824=-17.16996
832=-16.60515 834=-16.60515
819= 0 8110=-2.65551
829= 0 8210=-17.16996
839= 0 8310=-16.60515
LOANM= 72.83632
825=-17.16996 826=-17.16996 835=-16.60515
AD3=-11.04565
08= 0
L12= 58.46645
L22= 51.02006
L32= 55.50878
L25= 51.53662
L19= 0
L29= 0
L39= 0
AD4=-11.97562
AD9= 0
L14= 58.20519
L24= 50.7588
L34= 55.24752
L26= 50.88958
L110= 58.08102
L210= 50.63462
L310= 55.12335
AD5=-11.1978
AD10=-12.0998
AF8= 0
1LI8T 2RUN 3LOAD" 48AVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY 08CREEN
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' ,-
C" ' ~ -<...., -~.. ,· ., -· ·:-" -~-~
... _l -~ • .1. ! : ,_: I .._ .' -,' ..__ .._-:.._ -.... -l ·-
I ·: ~' _-
L=·~:iLi-~ --:~~).Ijt.;_,_::s rc::~~ s~~~~ilr~:, s~-I~-r~r, s~·L·Jl·i, Sl·.;.li, s:-;.;.=~, s~:Fi·!, ~--~~:·/
? 29,S9,S9,20,89,89,89 I ~;;~~E VALUES FO~< SH?FF
ENTER VALUES FOR SHNNN,SHNN,SHNM,SHN,SHF,SHFM,SHFF
? 89,89,89,89,89,89,89 I ENTER VALUES FOR SHFFF
? 89
ENTER VALUES FOR VANNN,VANN,VANM,VAN,VAF,VAFM,VAFF
I ? 856,856,856,856,856,856,856
ENTER VALUES FOR VAFFF
? 856
I ENTER VALUES FOR VMNNN, VMNN, VMNM, VMN, VMF, VMFM, VMFF
? 30,30,30,30,30,30,30 '
ENTER VALUES FOR VMFFF
? 30
I ENTER VALUES FOR VHNNN,VHNN,VHNM,VHN,VHF,VHFM,VHFF
? 34,34,34,34,34,34,34
1LIST 2RUN . 3LOAD 11 4SAVE11 5CONT 6,"LPT1 7TRON 8TROFF 9KEY 08CREE
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813=-3.408251 S11=-3.408251
S23=-17.96178 S21=-17.96178
S33=-17.4182 831=-17.4182
817=-3.408251 818= 0
827=-17.96178 828= 0
837=-17.4182 838= 0
S15=-3.40S251 816=-3.408251
S36=-17.4182
AD1=-10.39654 AD2=-10.73817
ADG=-10.85777 AD7=-9.989401
L13= 59.30289 L11= 59.03153
L23= 51.81742 L21= 51.54606
L33= 56.28491 L31= 56.01356
L15= 59.16342 L16= 58.5703
L35= 56.14545 L36= 55.55232
L17= 59.43867 L18= 0
L27= 51.9532 L28= 0
L37= 56.01356 L38= 0
LEQH(COMBINED)= 70.15153
CNEL= 70.15153
ENTER VALUES FOR D,E,N
I ? 1,0,0
ENTER VALUES FOR A,G,AB
? 0.2,0,0
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812=-3.408251 814=-3.408251
822=-17.96178 824=-17.96178
832=-17.4182 834=-17.4182
S19= 0 8110=-3.408251
S29= 0 S210=-17.96178
839= 0 8310=-17.4182
825=-17.96178 826=-17.96178 835=-17.4182
AD3=-10.12518 AD4=-10.97766 AD5=-10.26465
08= 0 AD9= 0 ' AD10=-11. 09148
L12= 58.68991 L14= 58.45042 AF8= 0
L22= 51.20444 L24= 50.96495
L32= 55.67193 L34= 55.43244
L25= 51.67796 L26= 51.08483
L19= 0 L110= 58.3366
L29= 0 L210= 50.85113
L39= 0 L310= 55.31862
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LOANNN= 72.83632
LOAFF= 72.83632
813=-3.408251 811=-3.408251
823=-17.96178 821=-17.96178
833=-17.4182 831=-17.4182
817=-3.408251 818= 0
827=-17.96178 828= 0
837=-17.4182 838= 0
815=-3.408251 816=-3.408251
836=-17.4182
AD1=-11.34168 AD2=-11.71436
AD6=-11.84484 AD7=-10.89753
L13= 58.38242 L11= 58.08639
L23= 50.89695 L21= 50.60092
L33= 55.36444 L31= 55.06842
L15= 58.23028 L16= 57.58323
L35= 55.2123 L36= 54.56526
L17= 58.53054 L18= 0
L27= 51.04508 L28= 0
L37= 55.06842 L38= 0
LEQH(COMBINED)= 69.19366
CNEL= 69.19366
ENTER VALUES FOR D,E,N
?
LOANN= 72.83632
LOAFM= 72.83632
812=-3.408251 814=-3.408251
822=-17.96178 824=-17.96178
832=-17.4182 834=-17.4182
819= 0 8110=-3.408251
829= 0 8210=-17.96178
839= 0 8310=-17.4182
825=-17.96178 826=-17.96178
AD3=-11. 04565
DB= 0
L12= 57.71371
L22= 50.22824
L32= 54.69573
L25= 50.74481
L19= 0
L29= 0
L39= 0
AD4=-11.97562
AD9= 0
L14= 57.45245
L24= 49.96698
L34= 54.43447
L26= 50.09777
L110= 57.32828
L210= 49.84281
L310= 54.31031
LOANM= 72.83632
835=-17.4182
AD5=-11.1978
AD10=-12.0998
AF8= 0
1LI8T 2RUN 3LOAD" 48AVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OSCREEN
I
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I
.. -
1,· -.
~ 1 ..L .
c: \._' '-'-
r--. (~ ( r -r' 1•
. f I~ • .. {_ :;_, I :_ . ' '. .' '
( L'-1 • ) ...L. 1.)
-l (' ' <:. .-. (~ ' ,·, ':/'! L'-( (.-I •_,
,--
' i -
.... ·'
' I
I -<T.:.:R \'~~LuES ro:::~ s:iN:l:i I 8E:r;; I s~aml 2::-1~:, s:-IP I SHFJ:·:, SHFF
? 89 18S,89 189 189 189 189
ENTER VhLUES FCR SRFFF
? 89
I :r::?~TER \7J:,LUES FOR ·v-;,ln·:i·J I VANN 1 VAN1·1~ vAN I VAF', VAFH, VAFF
? 856,856,856,8561856,856,856
I
ENTER VALUES FOR VAFFF
? 856
ENTER VALUES FOR VMNNN,VMNN,VMNM,VMN,VMF,VMFM,VMFF
? 30,30,30,30,30,30,30
ENTER VALUES FOR VMFFF I ? 30
ENTER VALUES FOR VHNNN,VHNN,VHNM,VHN,VHF,VHFM,VHFF
? 34,34,34,34,34,34,34
I ENTER VALUES FOR VHFFF
? 3-4
1LIST
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2RUN 3LOAD" 4SAVE 11 5CONT 6,"LPT1 7TRON
ENTER VALUES FOR SHNNN,SHNN,SHNM,SHN,SHF,SHFM,SHFF
? 89,89,89,89,89,89,89
ENTER VALUES FOR SHFFF
? 89
ENTER VALUES FOR VANNN,VANN,VANM,VAN,VAF,VAFM,VAFF
? 856,856,856,856,856,856,856
ENTER VALUES FOR VAFFF
? 856
ENTER VALUES FOR VMNNN,VMNN,VMNM,VMN,VMF,VMFM,VMFF
? 30,30,30,30,30,30,30
ENTER VALUES FOR VMFFF
? 30
ENTER VALUES FOR VHNNN,VHNN,VHNM,VHN,VHF,VHFM,VHFF
? 34,34,34,34,34,34,34
ENTER VALUES FOR VHFFF
? 34
ENTER VALUES FOR B,DO,D1,D3,D4,D5,D6
? 180,15,206.2,209.7,213.4,217,226.8
ENTER VALUES FOR D7,D8,D10
? 230.4,234.1,237.7
ENTER VALUES FOR D,E,N
? 1,0,0
ENTER VALUES FOR A,.G, AB
? 0.2,0,0
8TROFF 9KEY OSCREEN
I
I
I
I
N
LOANNN= 72.83632
LOAFF= 72.83632
813=-3.408251 811=-3.408251
823=-17.96178 821=-17.96178
833=-17.4182 831=-17.4182
817=-3.408251 S18= 0
827=-17.96178 S28= 0
837=-17.4182 S38= 0
815=-3.408251 816=-3.408251
836=-17.4182
ADl=-13.92442 AD2=-14.15462
I AD6=-14.23669 AD7=-13.65837
L13= 55.68199 L11= 55.50365
L23= 48.19652 L21= 48.01818
I L33= 52.66401 L31= 52.48567
L15= 55.59083 L16= 55.19138
L35= 52.57286 L36= 52.1734
L17= 55.7697 L18= 0 I L27= 48.28424 L28= 0
L37= 52.48567 L38= 0
LEQH(COMBINED)= 66.66853
I CNEL= 66.66853
ENTER VALUES FOR D,E,N
?
LOANN= 72.83632
LOAFM= 72.83632
812=-3.408251 814=-3.408251
822=-17.96178 824=-17.96178
832=-17.4182 834=-17.4182
LOANM= 72.83632
S19= 0 8110=-3.408251
S29= 0 8210=-17.96178
S39= 0 8310=-17.4182
825=-17.96178 826=-17.96178
AD3=-13.74609
08= 0
L12= 55.27345
L22= 47.78799
L32= 52.25548
L25= 48.10537
L19= 0
L29= 0
L39= 0
AD4=-14.31972
AD9= 0
L14= 55.10835
L24= 47.62288
L34= 52.09037
L26= 47.70591
L110= 55.02882
L210= 47.54335
L310= 52.01084
835=-17.4182
AD5=-13.83724
AD10=-14.39926
AFS= 0
I 1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OSCREEN
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II
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· i :::·I'--!
·--~. ;,_· ~.J-~lJ:!=s
V.i\LUES
? 89
--,--.-·. _r_· v·_._
~--·--.,.-, , ,S-
r -. ·-, ----,--, ~; _. \ :: ;: i.
ENTER VALUES FOR VANNN,VANN,VANM,VAN,VAF,VAFM,VAFF
? 969,969,969,969,969,969,969 .
ENTER VALUES FOR VAFFF
? 969
ENTER VALUES FOR VMNNN,VMNN,VMNM,VMN,VMF,VMFM,VMFF
? 34,34,34,34,34,34,34
1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON
ENTER VALUES FOR SHNNN,SHNN,SHNM,SHN,SHF,SHFM,SHFF
? 89,89,89,89,89,89,89
ENTER VALUES FOR SHFFF
? 89
ENTER VALUES FOR VANNN,VANN,VANM,VAN,VAF,VAFM,VAFF
? 969,969,969,969,969,969,969
ENTER VALUES FOR VAFFF
? 969
ENTER VALUES FOR VMNNN,VMNN,VMNM,VMN,VMF,VMFM,VMFF
? 34,34,34,34,34,34,34 .
ENTER VALUES FOR VMFFF
? 34
ENTER VALUES FOR VHNNN,VHNN,VHNM,VHN,VHF,VHFM,VHFF
? 39,39,39,39,39,39,39
ENTER VALUES FOR VHFFF
? 39
ENTER VALUES FOR B,DO,D1,D3,D4,D5,D6
? 180,15,206.2,209.7,213.4,217,226.8
ENTER VALUES FOR D7,D8,D10
? 230.4,234.1,237.7
ENTER VALUES FOR D,E,N
? 0.76,0.11,0.13
ENTER VALUES FOR A,G,AB
? 0.2,0,-1.5
8TROFF 9KEY OSCREEN
LOANNN= 72.83632
LOAFF= 72.83632
513=-2.869751 811=-2.869751
523=-17.4182 521=-17.4182
I 533=-16.82234 831=-16.82234
517=-2.869751 518= 0
527=-17.4182 528= 0
I 537=-16.82234 538= 0
515=-2.869751 516=-2.869751
536=-16.82234
AD1=-13.92442 AD2=-14.15462 I AD6=-14.23669 AD7=-13.65837
L13= 54.72048 L11= 54.54215
L23= 47.2401 L21= 47.06176
I L33= 51.75987 L31= 51.58153
L15= 54.62933 L16= 54.22988
L35= 51.66872 L36= 51.26926
L17= 54.8082 L18= 0 I L27= 47.32781 L28= 0
L37= 51.58153 L38= 0
LEQH(COMBINED)= 65.72463
I CNEL= 69.54092
ENTER VALUES FOR D,E,N
?
.,-, ltJ.l~ . 'l".6:
LOANN= 72.83632
LOAFM= 72.83632
512=-2.869751 514=-2.869751
522=-17.4182 524=-17.4182
532=-16.82234 534=-16.82234
519= 0 5110=-2.869751
529= 0 5210=-17.4182
539= 0 5310=-16.82234
LOANM= 72.83632
525=-17.4182 526=-17.4182 535=-16.82234
AD3=-13.74609
08= 0
L12= 54.31195
L22= 46.83156
L32= 51.35133
L25= 47.14895
L19= 0
L29= 0
L39= 0
AD4=-14.31972
AD9= 0
L14= 54.14685
L24= 46.66646
L34= 51.18623
L26= 46.74949
L110= 54.06732
L210= 46.58693
L310= 51. 1067
ADS=-13.83724
AD10=-14.39926
AF5= 0
I 1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY 05CREEN
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Ok
LIST 100-250
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I 100 REM NOISE REDUCTION DUE TO NOISE BARRIER, FHWA METHOD, ENGLISH UNITS (Ft.)
110 REM C1E=DISTANCE FROM SOURCE TO BARRIER
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120 REM C2E=DISTANCE FROM BARRIER TO RECEPTOR
130 REM HE=HEIGHT OF BARRIER ABOVE ROADWAY ELEVATION
140 REM S1E=SOURCE HEIGHT ABOVE ROADWAY
150 REM RE=RECEPTOR HEIGHT WITH RESPECT TO ROADWAY
160 REM T=TEMPERATURE IN F
170 REM FR=FREQUENCY IN CPS
211 REM INDEX 1=RIGHT SIDE
I 212 REM INDEX 2=LEFT SIDE
213 REM PR=RIGHT ANGLE FROM THE OBSERVER SIDE
214 REM PL=LEFT ANGLE FROM THE OBSERVER SIDE
I 220 REM NO=FRESNEL NUMBER, PERPENDICULAR TO SOURCE LINE
230 REM EB=EARTHBERM FACTOR
231 REM RCE=LIMIT HEIGHT OF SOURCE
232 REM LB,LBL=NOISE REDUCTION DUE TO NOISE BARRIER OR EARTH BERM
I 235 REM LO=O, NO NOISE REDUCTION DUE TO THE HEIGHT OF SOURCE
236 REM LM=THE MAXIMUM POSSIBLE NOISE REDUCTION
250 PRINT I Ok
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1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON STROFF 9KEY OS CREE
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RUN I
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ENTER VALUES FOR C1E,C2E,HE,S1E,RE,TE,FR
? 450,278,30,2.3,35,68,550
I
ENTER VALUES FOR EB
? 1
ENTER VALUES FOR PL,PR
? -90,90
I A1= 137.4196 B1= 84.74806
NO= .1587856
RC= 14.35987
I P0=-1.570796 P3=-.6283185
UO= 7.532272E-08
VSO= 7.533893E-08
ZO= 1.000215 Z3= .6343046
I LBL=-9.485004
Ok·
C= 222.1181
P7= .6283186
U3= .8071399
VS3= .5119726
Z7= .6343046
DO= 4.953003E-02
P10= 1.570796
U7= .8071398
VS7= .5119726
Z10= 1. 000215
DFF= 3.141593
U10= 7.532272E-08
VS10= 7.533893E-08
IU= 2.23177
I 1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OSCREEN
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Table 10.
Comparison of Test Data And Theory
Fig. 4, Standard 15 HP No Silencer
Fig. 5, Model 90T Without Silencer
Distance (Ft) 10 20 30 50
Test (dBA) 85 80 78 74
Theory (dBA) 85 80.7 77.8 73.9
Error (%) 0 0.85 0.25 0.1
100
65
68.3
5.1
Noise Level of Car Wash= 94 -20LOG{(5.5+Distance)f5.5}
Distance >= 10 Ft.
Ok
RUN
1AbleJJ.
ENTER VALUES FOR C1E,C2E,HE,S1E,RE,TE,FR I ? 610,118,39.5,2.3,35,68,550
ENTER VALUES FOR EB
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? 1
ENTER VALUES FOR PL,PR
? -50,60
A1= 186.2734
RC= 14.23296
P0=-.8726646
UO= 1.913615
VSO= .7773875
ZO= .4062403
LBL=-12.67862
Ok
B1= 35.99255
P3=-.2967059
U3= 2.846974
VS3= .8719862
Z3= .3062854
C= 222.1181
P7= .4712391
U7= 2.652577
VS7= .8572396
Z7= .3231724
DO= .1477966 NO= .4738133
P10= 1.047198 OFF= 1.919862
U10= 1.488528
VS10= .7050451
Z10= .4736525 IU= .6537443
1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OSCREEN
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RUN
ENTER VALUES FOR C1E,C2E,HE,S1E,RE,TE,FR
? 106,44,6,4,5,68,550
ENTER VALUES FOR EB
? 0
ENTER VALUES FOR PL,PR
? -25,80
A1= 32.31454 B1= 13.41466
NO= 2.621969E-02
RC= 2.081842
P0=-.4363323
UO= .149308
VSO= .1356124
ZO= .9082729
LBL=-5.352346
Ok
P3= .1134464
U3= .1636842
VS3= .1473486
Z3= .9002006
C= 45.72103
P7= .8464848
U7= .1091621
VS7= .1016828
Z7= .9314844
DO= 8.178711E-03
P10= 1.396263 OFF=
U10= 2.860736E-02
VS10= .0280705
Z10= .9812335 IU=
1. 832596
1. 689787
1LIST 2RUN 3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OSCREE
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RUN 17Able. IJ •
ENTER VALUES FOR C1E,C2E,HE,S1E,RE,TE,FR
? 620,117,40.3,2.3,35,68,550
ENTER VALUES FOR EB
? 1
ENTER VALUES FOR PL,PR
? -25,60
B1= 35.69815 C= 224.8585 DO= .1702423 NO= .5457706 A1= 189.3306
RC= 14.46915
P0=-.4363323
OFF= 1. 48353
UO= 3.107891
VSO= .8889252
ZO= .286022
LBL=-13.20454
Ok
P3= 8.726686E-03 P7= .6021386 P10= 1.047198
1LIST 2RUN
U3= 3.429047 U7= 2.826075 U10= 1.714589
VS3= .9061368 VS7= .8704952 VS10= .7467197
Z3= .2642532 Z7= .3080227 Z10= .4355095 IU= .4475505
3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OS CREE
? 0
ENTER VALUES FOR PL,PR
? -25,43
I A1= 44.20019 B1= 8.844454 C= 53.03605
NO= 2.754046E-02
DO= 8.590698E-03
I RC= 1. 95072
P0=-.4363323 P3=-8.028516E-02
DFF= 1.186824
P7= .3944444 P10= .7504916
UO= .1568291 I VSO= .1417789
ZO= .9040344
LBL=-5.448791 I Ok
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1LIST 2RUN
U3= .1724844 U7= .159754 U10= .1265548
VS3= .1544286 VS7= .1441612 VS10= .1165956
Z3= .8953192 Z7= .9023951 Z10= .9213052 IU= 1.070304
3LOAD" 4SAVE" 5CONT 6,"LPT1 7TRON 8TROFF 9KEY OS CREE