HomeMy WebLinkAboutMS 04-18; EUCALYPTUS LANE; NOISE STUDY; 2010-01-08I
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NOISE STUDY
EUCALYPTUS LANE SUBDIVISION
(APN 208-040-05)
CARLSBAD CA
Project Proponent:
Mr. Pino Ficara
560 North Coast Highway 101, Suite 1
Encinitas, Ca 92024
Prepared by:
Jeremy Louden
Lá 4wavagoIns.
446 Crestcourt Lane
Falibrook, CA 92028
760-473-1253
January 8, 2010
Project: 09-83 Eucalyptus Lane Noise Report
TABLE OF CONTENTS
TABLEOF CONTENTS .......................................................................................................................................... II
LISTOF FIGURES ................................................................................................................................................. II
LISTOF TABLES ................................................................................................................................................... II
APPENDICES....................................................................................................................................................... II
GLOSSARYOF TERMS........................................................................................................................................III
EXECUTIVESUMMARY ......................................................................................................................................IV
1.0 PROJECT INTRODUCTION...........................................................................................................................1
1.1 PURPOSE OF THIS STUDY...................................................................................................................................1
1.2 PROJECT LOCATION..........................................................................................................................................1
1.3 PROJECT SETTING ............................................................................................................................................1
2.0 ACOUSTICAL FUNDAMENTALS...................................................................................................................4
3.0 SIGNIFICANCE THRESHOLDS AND STANDARDS...........................................................................................6
4.0 NOISE ENVIRONMENT ...............................................................................................................................7
4.1 EXISTING NOISE ENVIRONMENT ONSITE...............................................................................................................7
4.2 FUTURE NOISE PREDICTION METHODOLOGY .............................................................................................................8
5.0 FINDINGS AND MITIGATION .....................................................................................................................12
LIST OF FIGURES
FIGURE1-1: PROJECT VICINITY MAP...................................................................................................................2
FIGURE1-2: PROJECT SITE PLAN .........................................................................................................................3
FIGURE 4-1: AMBIENT MONITORING LOCATION .................................................................................................8
FIGURE 4-2: MODELED RECEPTOR LOCATIONS...................................................................................................11
FIGURE5-1: MITIGATION MEASURES.................................................................................................................13
LIST OF TABLES
TABLE 4-1: MEASURED AMBIENT NOISE LEVELS..................................................................................................7
TABLE4-2: TRAFFIC PARAMETERS ......................................................................................................................9
TABLE 5-1: FUTURE EXTERIOR NOISE LEVELS......................................................................................................12
APPENDICES
MODEL CALIBRATION AND FUTURE NOISE MODEL INPUT AND OUTPUT FILES ...................................................14
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
GLOSSARY OF TERMS
Sound Pressure Level (SPL): a ratio of one sound pressure to a reference pressure (L) of
20 pPa. Because of the dynamic range of the human ear, the ratio is calculated logarithmically
by 20 log (L/L)
A-weighted Sound Pressure Level (dBA): Some frequencies of noise are more noticeable
than others. To compensate for this fact, different sound frequencies are weighted more.
Minimum Sound Level (Lm j,j: Minimum SPL or the lowest SPL measured over the time
interval using the A-weighted network and slow time weighting.
Maximum Sound Level (Lmax) Maximum SPL or the highest SPL measured over the time
interval the A-weighted network and slow time weighting.
Equivalent sound level (Leq): the true equivalent sound level measured over the run time.
Leq is the A-weighted steady sound level that contains the same total acoustical energy as the
actual fluctuating sound level.
Day Night Sound Level (LDN): Representing the Day/Night sound level, this measurement is
a 24 —hour average sound level where 10 dB is added to all the readings that occur between 10
pm and 7 am. This is primarily used in community noise regulations where there is a 10 dB
"Penalty" for night time noise. Typically LDN's are measured using A weighting.
Community Noise Exposure Level (CNEL): The accumulated exposure to sound measured
in a 24-hour sampling interval and artificially boosted during certain hours. For CNEL, samples
taken between 7 pm and 10 pm are boosted by 5 dB; samples taken between 10 pm and 7 am
are boosted by 10 dB.
Octave Band: An octave band is defined as a frequency band whose upper band-edge
frequency is twice the lower band frequency.
Third-Octave Band: A third-octave band is defined as a frequency band whose upper band-
edge frequency is 1.26 times the lower band frequency.
Response Time (F,S,I): The response time is a standardized exponential time weighting of
the input signal according to fast (F), slow (S) or impulse (I) time response relationships. Time
response can be described with a time constant. The time constants for fast, slow and impulse
responses are 1.0 seconds, 0.125 seconds and 0.35 milliseconds, respectively.
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1/8/2010 098301 Eucalyptus Lane Noise Report
EXECUTIVE SUMMARY
This noise study has been completed to determine the noise impacts associated with
the development of the proposed residential project. The project known as "Eucalyptus
Lane" consists of three (3) new single-family units and one remained lot (Lot 4). The
project site is located at the northwest corner of the intersection of El Camino Real and
Crestview Drive in the City of Carlsbad CA. The site consists of approximately 2.12
gross acres. The project site is bordered by Eucalyptus Lane to the west, Crestview
Road to the south and El Camino Real to the east. The project will have a two access
points both from Eucalyptus Lane.
The results of this analysis indicate that future vehicle noise from El Camino Real is the
principal source of community noise that could impact the site. Lot 3 located adjacent to
El Camino Real and over twenty-feet above the roadway was found to exceed the City of
Carlsbad 60 dBA CNEL exterior noise standard and mitigation measures are required. The
noise affected outdoor area at Lot 3 requires a 6-foot high noise barrier along the project's
top of slope along the southern portion of the pad wrapping around the eastern face of
the pad towards the driveway approach. The barriers must be constructed of a non-
gapping material consisting of masonry, 1/2 inch thick glass, earthen berm or any
combination of these materials. This 6-foot high barrier will reduce the noise levels to
below the 60 dBA CNEL threshold.
The City of Carlsbad as part of its noise guidelines also states, consistent with Title 24 of
the California Code of Regulations (CCR), a project is required to perform an interior
assessment on the portions of a project site where building façade noise levels are above
60 dBA CNEL in order to ensure a 45 dBA CNEL interior noise level. Exterior noise levels
at the building facades of Lots 2 and 3 were found to be above the 60 dBA CNEL
threshold. Therefore, interior mitigation for these lots is required to obtain an interior
level of 45 dBA CNEL and an interior noise study shall be prepared prior to obtaining
building permits for these proposed Lots.
1/8/2010 0983-01 Eucalyptus Lane Noise Report
1.0 Project Introduction
1.1 Purpose of this Study
The purpose of this Noise study is to determine potential onsite traffic noise impacts (if
any) created from adjacent El Camino Real. Should impacts be determined, the intent
of this study would be to recommend suitable mitigation measures to bring those
impacts to a level that would be considered less then significant.
1.2 Project Location
The proposed project is located within the City of Carlsbad, CA. More specifically, the
project is located at the northwest corner of the intersection of El Camino Real and
Crestview Drive between Canon Road and Kelly Drive. Access to the project site is from
Eucalyptus Lane via Crestview Drive. A general project vicinity map is shown in Figure
1-1 on the following page.
1.3 Project Setting
The proposed project consists or three (3) new single-family units and one remained lot
(Lot 4). The existing site conditions are characterized as mostly disturbed land with no
apparent structures onsite. The general topography of the site is characterized as up-
sloping from the south and east more than twenty-feet from the roadways. Single-
family residential uses surround the proposed development area. A project site plan is
shown in Figure 1-2 on Page 3 of this report.
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
2.0 Acoustical Fundamentals
Noise is defined as unwanted or annoying sound which interferes with or disrupts
normal activities. Exposure to high noise levels has been demonstrated to cause hearing
loss. The individual human response to environmental noise is base on the sensitivity of
that individual, the type of noise that occurs and when the noise occurs.
Sound is measured on a logarithmic scale consisting of sound pressure levels known as
a decibel (dB). The sounds heard by humans typically do not consist of a single
frequency but of a broadband of frequencies having different sound pressure levels.
The method for evaluating all the frequencies of the sound is to apply an A-weighting to
reflect how the human ear responds to the different sound levels at different
frequencies. The A-weighted sound level adequately describes the instantaneous noise
whereas the equivalent sound level depicted as Leq represents a steady sound level
containing the same total acoustical energy as the actual fluctuating sound level over a
given time interval.
The Community Noise Equivalent Level (CNEL) is the 24 hour A-weighted average for
sound, with corrections for evening and nighttime hours. The corrections require an
addition of 5 decibels to sound levels in the evening hours between 7 p.m. and 10 p.m.
and an addition of 10 decibels to sound levels at nighttime hours between 10 p.m. and
7 a.m. These additions are made to account for the increased sensitivity during the
evening and nighttime hours when sound appears louder.
A vehicles noise level is from a combination of the noise produced by the engine,
exhaust and tires. The cumulative traffic noise levels along a roadway segment are
based on three primary factors: the amount of traffic, the travel speed of the traffic,
and the vehicle mix ratio or number of medium and heavy trucks. The intensity of
traffic noise is increased by higher traffic volumes, greater speeds and increased
number of trucks.
Because mobile/traffic noise levels are calculated on a logarithmic scale, a doubling of
the traffic noise or acoustical energy results in a noise level increase of 3 dBA.
Therefore the doubling of the traffic volume, without changing the vehicle speeds or
mix ratio, results in a noise increase of 3 dBA. Mobile noise levels radiant in an almost
oblique fashion from the source and drop off at a rate of 3 dBA for each doubling of
distance under hard site conditions and at a rate of 4.5 dBA for soft site conditions.
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
Hard site conditions consist of concrete, asphalt and hard pack dirt while soft site
conditions exist in areas having slight grade changes, landscaped areas and vegetation.
On the other hand, fixed/point sources radiate outward uniformly as it travels away
from the source. Their sound levels attenuate or drop off at a rate of 6 dBA for each
doubling of distance.
The most effective noise reduction methods consist of controlling the noise at the
source, blocking the noise transmission with barriers or relocating the receiver. Any or
all of these methods may be required to reduce noise levels to an acceptable level.
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
3.0 SIGNIFICANCE THRESHOLDS AND STANDARDS
The City of Carlsbad's Noise Guidelines Manual (1995) requires that all exterior sensitive
residential areas shall limit noise exposure. For noise sensitive residential land uses, the
City has adopted a policy which has established an exterior noise level goal of 60 dBA
CNEL for the outdoor living areas and an interior noise level of less than 45 dBA CNEL.
For residential properties identified as requiring a noise study, a study shall be prepared
by an acoustical professional. This study shall document the projected maximum
exterior noise level and mitigate the projected exterior noise level to a maximum
allowable noise level as identified in Noise Guideline Manual.
The City of Carlsbad's General Plan established a 65 dBA CNEL as the maximum noise
level to which residential units subject to noise from McClellan-Palomar Airport should
be permitted. Additional disclosure actions (easements, deed restrictions, recorded
notice, etc.) may be required of developers and sellers of noise impacted residential
units.
Interior noise levels should be mitigated to a maximum of 45 dBA CNEL in all habitual
rooms when the exterior of the residence are exposed to levels of 60 dBA CNEL or
more. If windows and doors are required to be closed to meet the interior noise
standard, then mechanical ventilation shall be provided per City requirements.
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
4.0 NOISE ENVIRONMENT
4.1 Existing Noise Environment Onsite
Noise measurements were taken using a Larson-Davis Model LxT Type 1 precision
sound level meter, programmed, in "slow" mode, to record noise levels in "A" weighted
form. The sound level meter and microphone were mounted on a tripod, five feet
above the ground and equipped with a windscreen during all measurements. The
sound level meter was calibrated before and after the monitoring using a Larson-Davis
calibrator, Model CAL 150.
The ambient measurements were conducted on December 17, 2009 between 3 and 4
pm. The results of the noise level measurements are presented in Table 4-1. The
measurement was located at the southwestern portion of proposed Lot 3 free of
obstruction and having direct line of sight to the roadway. Due to the vertical and
horizontal offsets and intervening topography between the site and the roadway the
overall sound level was found to be only 59.9 dBA. The statistical indicators Lmax,
Lmin, L10, L50 and L90, are given for the monitoring location. As can be seen from the
L90 data, 90% of the time the noise level is below 53 dBA. The noise monitoring
location can be seen in Figure 4-1 on the following page.
Table 4-1: Measured Ambient Noise Levels
Nij'ëVId BA!Lle
easurem
=
e i ti a e ime
Rear yard of Dec 17, 2009
Source: Ldn Consulting, Inc. December 17, 2009
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
3.0 to 4.0 dBA are routinely calibrated to adjust for site conditions the Sound32 model
did not account for which include topographic features, soft site conditions and existing
structures or barriers.
The critical model input parameters, which determine the projected vehicular traffic noise
levels, include vehicle travel speeds, the percentages of automobiles, medium trucks and
heavy trucks in the roadway volume, the site conditions (hard or soft) and the peak hour
traffic volume. The peak hour traffic volumes range between 6-12% of the average daily
traffic (ADT) and 10% is generally acceptable for noise modeling purposes. During the
aforementioned ambient noise measurements, traffic counts were taken using a video
camera to later determine the existing vehicle mix for the model calibration. The posted
and future speed limit used in the analysis was 55 miles per hour (MPH).
Table 4-2 presents the roadway parameters used in the analysis including the average
daily traffic volumes, vehicle speeds and the hourly traffic flow distribution (vehicle mix)
for both the existing and future conditions. The vehicle mix provides the hourly
distribution percentages of automobile, medium trucks and heavy trucks for input into the
Sound32 Model.
Table 4-2: Traffic Parameters
ca =
_
_
2009 11,344 2,055' 55 97.902 1.812 0.292
El Camino Real
2030 1 41,000 4,100 55 97.894 1.83k 0.28
'Vehicles observed during ambient measurement
2Vehide Mix observed during the ambient noise measurement period.
3 Source: SANDAG Series 11 Traffic Prediction
' Vehicle Mixed defined in City of Carlsbad Noise Guideline Manual
The ambient measurement location was modeled in Sound32 to compare with the noise
monitoring location presented previously in Table 4-1. The model is slightly over
predicting the noise levels 0.1 dBA at monitoring location 1 using hard site conditions.
This minor over prediction is due to the prevailing topography and precision of the
model. Therefore, the roadway was modeled with hard site conditions for the future
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
4
noise environment and no calibration factors were applied to predict a conservative
worst case for the first/ground floor areas and second floor building facades. The
existing model input parameters for calibration along with the output file are provided in
Appendix A to this report.
The required coordinate information necessary for the Sound32 traffic noise prediction
model input was taken from the preliminary site plans provided by O'Day Consultant, Inc.
received on January 04, 2010. To predict the future noise levels the preliminary site plans
were used to identify the pad elevations, the roadway elevations, and the relationship
between the noise source(s) and the receptor areas. Traffic was consolidated into a single
lane for each directional flow of El Camino Real. The roadway segments were extended a
minimum of 500 feet beyond the observer locations.
To evaluate the potential noise impacts on the proposed development, outdoor observers
were located in all Lots and placed five feet above the pad elevation and near the center
of the rear yard a minimum of ten feet from the top/bottom of slope. All second floor
observers were located fifteen feet above the proposed pad elevation. It should be noted:
Lots 1 and 2 are shielding by an existing graded slope and the rear yard areas of Lot 2
and 3 are located away from El Camino Real.
The Buildout conditions includes the future year 2030 traffic volume forecasts provided by
SANDAG Series 11 Traffic Prediction Model and the peak hour traffic volumes as shown in
Table 4-2. To assess the peak hour traffic noise conditions for El Camino Real, 10% of
the ADT was utilized. El Camino Real was modeled using a speed limit of 55 MPH for all
vehicles to determine a worst-case scenario. The future traffic noise model also utilizes
the vehicle mix referenced in the City's Noise Guideline Manual. The modeled observer
locations for each Lot are presented in Figure 4-2.
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1/8/2010 0983-01 Eucalyptus Lane Noise Report
5.0 FINDINGS AND MITIGATION
The buildout analysis was modeled utilizing the roadway parameters described above in
Section 4 and shown in Table 4-2 with 41,000 daily vehicles at speeds of 55 MPH along
El Camino Real for the future conditions. The modeling results are quantitatively shown
in Table 5-1 below. Based upon these findings, exterior noise mitigation will be
necessary at Lot 3 for compliance with the City of Carlsbad's Noise Guideline Manual.
Noise affected outdoor areas at Lot 3 will require a 6-foot noise barriers along the top of
slope along the southern portion of the pad wrapping around the eastern face of the pad
towards the driveway approach. The barriers must be constructed of a non-gapping
material consisting of masonry, 1/2 inch thick glass, earthen berm or any combination of
these materials. Figure 5-1 shows the mitigation and barrier heights required to bring
future noise levels to the City of Carlsbad 60 dBA CNEL exterior noise level standards for
the proposed outdoor areas. The S32 models input parameters and output files for the
future conditions with and without mitigation are also provided in Appendix A.
Table 5-1: Future Exterior Noise Levels
Receptor, ecReceptor. U or Outdoor Noise eNoise
evation er Noise Cevel Barr
Height (Feet)
Levels
(18-A GNE~lj (dBACNEL)
S _ s
The City of Carlsbad as part of its noise guidelines also states, consistent with Title 24 of
the California Code of Regulations (CCR), a project is required to perform an interior
assessment on the portions of a project site where building façade noise levels are above
60 dBA CNEL in order to ensure a 45 dBA CNEL interior noise level. The second floor
building facades were also modeled to determine if future noise levels at the building
facades are above the 60 dBA CNEL standard. As can be seen in Table 5-1, in the last
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1/8/2010 0983-01 EucaypWs Lane Noise Report
Appendix A
MODEL CALIBRATION AND FUTURE NOISE
MODEL INPUT AND OUTPUT FILES
09-83 Eucalyptus Lane - Ambient Conditions
T-Measurement Period, 1
2012, 55, 37, 55, 6, 55
L-Centerline, 1
Y,81.,713,84,
Y,140.,694,83,
Y,270.,653,81,
Y,405.,600,78,
Y,538.,546,74,
Y,715.,448,66,
Y,934.,330,54,
'(,1276.,146,44,
B-South Edge Lot 2, 1, 1 , 0,0
436., 274,75,75,
455.,310,80,80,
470.,334,85,85,
465,352,94,94,
B-Topof Lot 3- South, 2,1,0,0
465.,352,94,94,
481.,360,94,94,
492.,370,94,94,
495,392,94,94,
483,410,94,94,
B-Topof Lot 3- East, 3, 1,0,0
514.,409,93,93,
505,423,94,94,
494.,431,95,95,
448.,452,95,95,
B-Slope from Lot 3-4, 4,1,0,0
418.,453,100,100,
428.,448,100,100,
448.,452,95,95,
B-Existing Wail Lot 4, 5,2,0,0
418.,453,100,106,
331,499,100,106,
B-North Edge of Site, 6, 1 , 0,0
331.,499,100,100,
306.,449,100,100,
281.,390,90,90,
250,316,80,80,
B-North Edge -Offsite,7,1,0,0
331.,499,100,100,
281,523,102,102,
230.,556,102,102,
209.,578,104,104,
142,609,106,106,
B-Existing Home - North, 8, 2, 0,0
255.,462,102,112,
267.,493,102,118,
276.,520,102,112,
214,543,102,112,
206,520,102,118,
B-Exlstng Home - Lot 4,9, 2, 0,0
380.,420,100, 120,
396.,412,100,120,
406.,436,100,120,
391.,444,100,120,
391,444,100,110,
336.,468,100,110,
321,440,100,110,
R, 1 , 67,500
484,381,97.,M1-Lot3
C,C
SOUND32 - RELEASE 07/30/91
TITLE:
09-83 Eucalyptus Lane - Ambient Conditions
BARRIER DATA
BAR
ELE
BARRIER HEIGHTS
0 1 2 3 4 5 6 7 ID
BAR
LENGTH TYPE
1 - 0. BI P1 41.0 BERM
2 - D. 81 P2 28.7 BERM
3 - 0. 81 P3 20.7 BERM
4 - 0. B2 PI 17.9 BERM
5 - 0. B2 P2 14.9 BERM
6 - 0. B2 P3 22.2 BERM
7 - 0. B2 P4 21.6 BERM
8 - 0. B3 P1 16.7 BERM
9 - 0. 83P2 13.6 BERM
10 - 0. 83 P3 50.6 BERM
11 - 0. 84 P1 11.2 BERM
12 - 0. 84 P2 21.0 BERM
13 - 6.* B5 P1 98.4 MASONRY
14 - 0. B6 P1 55.9 BERM
15 - 0. B6 P2 64.9 BERM
16 - 0. B6 P3 80.9 BERM
17 - 0. 87 P1 55.5 BERM
18 - 0. B7 P2 60.7 BERM
19 - 0. B7 P3 30.5 BERM
20 - 0.' B7 P4 73.9 BERM
21 13. 88 P1 33.8 MASONRY
22 - 13.* 88 P2 29.1 MASONRY
23 - 10. 88 P3 66.1 MASONRY
24 - 13.* 88 P4 25.1 MASONRY
25 20. 89 P1 17.9 MASONRY
26 - 20.* 89 P2 26.0 MASONRY
27 - 20.* 89 P3 17.0 MASONRY
28 - 15. B9 P4 10.0 MASONRY
29 - 10. 89 P5 60.0 MASONRY
30 - 10. B9 P6 31.8 MASONRY
01234567
REC REC ID DNL PEOPLE LEQ(CAL)
1 MI-Lot3 67. 500. 60.0
09-83 Eucalyptus Lane - Ground Level Unmitigated
T-Measurement Period, 1
4013, 55, 75, 55, 12, 55
L-Centerline, 1
Y,81.,713,84,
Y,140.,694,83,
Y,270.,653,81,
Y,405.,600,78,
Y,538.,546,74,
Y,715.,448,66,
Y,934.,330,54,
Y,1276.,146,44,
B-South Edge Lot 2, 1 , 1 , 0
436.,274,75,75,
455.,310,80,80,
470.,334,85,85,
465,352,94,94,
B-Topo( Lot 3- South, 2,1,0,0
465.,352,94,94,
481.,360,94,94,
492.,370,94,94,
495.,380,94,94,
B-Topof Lot 3- East, 3,1,0,0
513.,394,89,89,
517.,403,90,90,
514.,409,93,93,
505.,423,94,94,
494.,431,95,95'
448.,452,95,95,
B-Slope from Lot 3-4, 4, 1, 0
418,453,100,100,
428.,448,100,100,
448.,452,95,95,
B-Existing Wall Lot 4,5,2,0,0
418.,453,100,106,
331.,499,100,106,
B-North Edge of Site, 6,1,0,0
331.,499,100,100,
306.,449,100,100,
281.,390,90,90,
250,316,80,80,
B-North Edge - Offsite, 7,1,0,0
331.,499,100,100,
281.,523,102,102,
230.,556,102,102,
209.,578,104,104,
142.,609,106,106,
B-Existing Home - North, 8, 2, 0,0
255.,462,102,112,
267.,493,102,118,
276.,520,102,112,
214.,543,102,112,
206.,520,102,118,
B-Existng Home - Lot 4, 9, 2, 0,0
380.,420,100,120,
396,412,100,120,
406.,436,100,120,
391,444,100,120,
391.,444,100,110,
336,468,100,110,
321.,440,100,110,
R, 1, 67,500
323,333,85.,Lotl-1
R,2,67,500
370,296,82.,tt2-1
R,3, 67,500
460,360,99.,Lot3-1
c,c
SOUND32 - RELEASE 07/30/91
lrnl:
09-83 Eucalyptus Lane - Ground Level Unmitigated
BARRIER DATA
*8*8*8*8*8*8
BAR.
ELE 0 1
BARRIER HEIGHTS
2 3 4 5 6 7 ID
BAR
LENGTH TYPE
1 - 0. BI PI 41.0 BERM
2 - 0. BI P2 28.7 BERM
3 - 0. BI P3 20.7 BERM
4 - 0. 82 P1 17.9 BERM
5 - 0. B2 P2 14.9 BERM
6 - 0. B2 P3 10.4 BERM
7 - 0. 83P1 9.9 BERM
8 - 0. 83 P2 7.3 BERM
9 - 0.p 83 P3 16.7 BERM
10 - 0. B3 P4 13.6 BERM
11 - 0. 63P5 50.6 BERM
12 - O. 84 P1 11.2 BERM
13 - 0. B4 P2 21.0 BERM
14 - 6. B5 P1 98.4 MASONRY
15 - 0. B6 P1 55.9 BERM
16 - 0* B6 P2 64.9 BERM
17 - 0. B6 P3 80.9 BERM
18 - 0. B7 P1 55.5 BERM
19 - 0. B7 P2 60.7 BERM
20 - O. B7 P3 30.5 BERM
21 - 0. B7 P4 73.9 BERM
22 - 13. 88 P1 33.8 MASONRY
23 - 13* B8 P2 29.1 MASONRY
24 - 10. BB P3 66.1 MASONRY
25 - 13.8 B8 P4 25.1 MASONRY
26 - 20.8 89 P1 17.9 MASONRY
27 - 20.8 89 P2 26.0 MASONRY
28 - 20.8 09 P3 17.0 MASONRY
29 - 15. B9 P4 10.0 MASONRY
30 - 10. B9 P5 60.0 MASONRY
31 - 10.8 B9 P6 31.8 MASONRY
01234567
1
REC REC ID DNL PEOPLE LEQ(CAL)
1 Lotl-1 67. 500. 53.8
2 Lot2-1 67. 500. 53.8
3 Lct3-1 67. 500. 62.4
09-83 Eucalyptus Lane - Ground Level Mitigated
T-Measurement Period, 1
4013, 55, 75, 55, 12,55
L-Centetllne, 1
Y,81.,713,84,
Y,140.,694,83,
Y,270.,653,81,
Y,405.,600,78,
Y,538.,546,74,
Y,715.,448,66,
Y,934.,330,54,
Y,1276.,146,44,
B-South Edge Lot 2, 1, 1, 0,0
436.,274,75,75,
455.,310,80,80,
470.,334,85,85,
465,352,94,94,
B-Topof Lot 3-South, 2,2,0,0
465,352,94,100,
481.,360,94,100,
492.,370,94,100,
495.,380,94,100,
B-Topof Lot 3- East, 3, 1, 0,0
513.,394,89,89,
517.,403,90,90,
514,409,93,93,
505.,423,94,94,
494.,431,95,95,
448.,452,95,95,
B-Slope from Lot 3-4, 4,1,0,0
418.,453,100,100,
428,448,100,100,
448.,452,95,95,
B-ExIsting Wall Lot 4, 5 , 2 , 0 ,0
418.,453,100,106,
331,499,100,106,
B-North Edge of Site, 6, 1 , 0,0
331.,499,100,100,
306,449,100,100,
281.,390,90,90,
250.,316,80,80,
B-North Edge - Mite, 7, 1, 0,0
331.,499,100,100,
281.,523,102,102,
230.,556,102,102,
209.,578,104,104,
142.,609,106,106,
B-Existing Home - North, 8, 2, 0,0
255.,462,102,112,
267.,493,102,118,
276,520,102,112,
214.,543,102,112,
206.,520,102,118,
B-Exlstng Home - Lot 4,9, 2, 0,0
380.,420,100,120,
396,412,100,120,
406.,436,100,120,
391.,444,100,120,
391,444,100,110,
336.,468,100,110,
321,440,100,110,
67,500
323,333,85.,lotl-1
67,500
A
370,296,82.,Lot2-1
R,3,67,500
460,360,99.,Lot3-1
c,c
SOUND32 - RELEASE 07/30/91
TITLE:
09-83 Eucalyptus Lane - Ground Level MAgated
BARRIER DATA
Is * *
BAR
ELE 0 1
BARRIER HEIGHTS
2 3 4 5 6 7 ID
BAR
LENGTH TYPE
1 - 0. B1 PI 41.0 BERM
2 - Q* BI P2 28.7 BERM
3 - 0. BI P3 20.7 BERM
4 - 6. 82 P1 17.9 MASONRY
5 - 6. B2 P2 14.9 MASONRY
6 - 6. B2 P3 10.4 MASONRY
7 - D. B3 P1 9.9 BERM
8 - 0. B3 P2 7.3 BERM
9 - 0. B3 P3 16.7 BERM
10 - 0.' B3 P4 13.6 BERM
11 - 0. 83 P5 50.6 BERM
12 - O. BA P1 11.2 BERM
13 - 0. 84 P2 21.0 BERM
14 - 6. B5 P1 98.4 MASONRY
15 - 0. B6 P1 55.9 BERM
16 - 0. B6 P2 64.9 BERM
17 - Q* 86 P3 80.9 BERM
18 - 0. B7 P1 55.5 BERM
19 - 0.' B7 P2 60.7 BERM
20 - 0.' B7 P3 30.5 BERM
21 - 0.' B7 P4 73.9 BERM
22 - 13.' B8 P1 33.8 MASONRY
23 - 13.' 88 P2 29.1 MASONRY
24 - 10.' 88 P3 66.1 MASONRY
25 - 13.' 88 P4 25.1 MASONRY
26 - 20.' 89 P1 17.9 MASONRY
27 - 20.' B9 P2 26.0 MASONRY
28 - 20. B9 P3 17.0 MASONRY
29 - 15.* B9 P4 10.0 MASONRY
30 - 10. 89 P5 60.0 MASONRY
31 - 10.' 89 P6 31.8 MASONRY
01234567
REC REC ID DNL PEOPLE LEQ(CAL)
1 Lotl-1 67. 500. 53.8
2 Lot2-1 67. 500. 53.8
3 Lot3-1 67. 500. 60.0
09-83 Eucalyptus Lane - Second Level Facades
T-Measurement Period, 1
4013, 55, 75, 55, 12,55
L-CenterIlne, 1
Y,81.,713,84,
Y,140.,694,83,
Y,270.,653,81,
Y,405.,600,78,
Y,538.,546,74,
Y,715.,448,66,
Y,934.,330,54,
Y,1276.,146,44,
Mouth Edge Lot 2, 1,1,0,0
436.,274,75,75,
455.,310,80,80,
470.,334,85,85,
465.,352,94,94,
B-Top of Lot 3-South, 2,2,0,0
465.,352,94,100,
481,360,94,100,
492.,370,94,100,
495.,380,94,100,
B-Top of Lot 3 - East, 3, 1, 0,0
513.,394,89,89,
517,403,90,90,
514.,409,93,93,
505,423,94,94,
494.,431,95,95,
448,452,95,95,
B-Slope from Lot 3-4, 4, 1, 0,0
418.,453,100,100,
428.,448,100,100,
448.,452,95,95,
B-Existing Wall Lot 4, 5,2,0,0
418.,453,100,106,
331.,499,100,106,
B-North Edge of Site, 6, 1 , 0,0
331.,499,100,100,
306.,449,100,100,
281.,390,90,90,
250.,316,80,80,
B-North Edge - Mite, 7, 1 , 0,0
331.,499,100,100,
281,523,102,102,
230.,556,102,102,
209.,578,104,104,
142,609,106,106,
B-Existing Home - North, 8,2,0,0
255.,462,102,112,
267.,493,102,118,
276.,520, 102,112,
214.,543,102,112,
206,520,102,118,
B-Existng Home- Lot 4, 9,2,0,0
380,420,100,120,
396.,412,100,120,
406.,436,100,120,
391.,444,100,120,
391.,444,100,110,
336.,468,100,110,
321.,440,100,110,
67,500
333,308,95.,Lotl-2
67,500
I
409,282,92.,Lot2-2
R, 3, 67,500
467,410,109.,lot3-2
SCUND32 - RELEASE 07/30/91
TITLE:
09-83 Eucalyptus Lane - Second Level Facades
BARRIER DATA
* * * * * ** * *** *
BAR BARRIER HEIGHTS BAR
ELE 0 1 2 3 4 5 6 7 ID LENGTH TYPE
1 - 0.' B1 PI 41.0 BERM
2 - 0.' BI P2 28.7 BERM
3 - 0.' Bi P3 20.7 BERM
4 - 6.' 82 P1 17.9 MASONRY
5 - 6.' B2 P2 14.9 MASONRY
6 - 6.' B2 P3 10.4 MASONRY
7 0.' B3 P1 9.9 BERM
8 - 0. 83P2 7.3 BERM
9 - 0.' B3 P3 16.7 BERM
10 - 0.' B3 P4 13.6 BERM
11 - 0. B3 PS 50.6 BERM
12 - 0. 84 P1 11.2 BERM
13 - 0.' 84 P2 21.0 BERM
14 - 6.' 85 P1 98.4 MASONRY
15 - 0.' B6 P1 55.9 BERM
16 - 0.' B6 P2 64.9 BERM
17 - 0.' 86P3 80.9 BERM
18 0.' B7 P1 55.5 BERM
19 - 0.' 07 P2 60.7 BERM
20 - 0.' B7 P3 30.5 BERM
21 - 0.' 87 P4 73.9 BERM
22 - 13.' B8 P1 33.8 MASONRY
23 - 13.' 88 P2 29.1 MASONRY
24 - 10.' 88 P3 66.1 MASONRY
25 - 13.' B8 P4 25.1 MASONRY
26 - 20.' B9 P1 17.9 MASONRY
27 - 20.' 89 P2 25.0 MASONRY
28 - 20.' 89 P3 17.0 MASONRY
29 - 15.' B9 P4 10.0 MASONRY
30 - 10.' 89 P5 60.0 MASONRY
31 - 10.' 89 P6 31.8 MASONRY
01234567
1
RECRECID DNL PEOPLE IEQ(CAL)
1 Lot1-2 67. 500. 58.2
2 Lot2-2 67. 500. 63.0
3 Lot3-2 67. 500. 71.0