HomeMy WebLinkAboutAMEND 2017-0012; LA COSTA TOWN SQUARE PARCEL 3 RESIDENTIAL; NOISE STUDY; 2017-06-29NOISE STUDY
La Costa Town Square
Residential Development
Carlsbad, CA
Project Proponent:
Hunsaker & Associates San Diego, Inc.
9707 Waples Street
San Diego, CA 92121
Prepared by:
""'Contrlltl6 Inc.
42428 Chisolm Trail
Murrieta, CA 92562
760-473-1253
June 29, 2017
Project: 1757-02 La Costa Town Square Noise Report
JUL 31 2017
CITY OF CAf~LSBAD
PLAi'~f\llNG DIVISION
TABLE OF CONTENTS
TABLE OF CONTENTS .......................................................................................................................................... II
LIST OF FIGURES •.........................................................•...........•........................................................•................. II
LIST OF TABLES .............•..............................•.................................•.............................................................•...... II
ATTACHMENTS •................................................................................•.....•.............................................•............ II
GLOSSARY OF TERMS .........•...........•........................................................•.....•.............................................•..... 111
EXECUTIVE SUMMARY ......•...........•....•..................•.....................•............................................•................•....... 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 ........................................................................................... 5
4.0 NOISE ENVIRONMENT ......................................................................•........................................................ 7
4.1 EXISTING NOISE ENVIRONMENTONSITE ................................................................................................................... 7
4.2 FUTURE NOISE PREDICTION METHODOLOGY ............................................................................................................. 7
5.0 FINDINGS AND MITIGATION •..........•.......................................................••................................................ 11
LIST OF FIGURES
FIGURE 1-1: PROJECT VICINITY MAP ................................................................................................................... 2
FIGURE 1-2: PROJECT SITE PLAN ......................................................................................................................... 3
FIGURE 4-1: AMBIENT MONITORING LOCATION ................................................................................................. 8
FIGURE 4-2: MODELED RECEPTOR LOCATIONS ..........................................•....•.....•..........................•.................. 10
UST OF TABLES
TABLE 3-1: ALLOWABLE NOISE EXPOSURE1 ......................................................................................................... 5
TABLE 4-1: MEASURED AMBIENT NOISE LEVELS .................................................................................................. 7
TABLE 4-2: FUTURE TRAFFIC PARAMETERS ......................................................................................................... 9
TABLE 5-1: FUTURE EXTERIOR NOISE LEVELS ...................................................................................................... 11
ATTACHMENTS
FUTURE NOISE MODEL INPUT AND OUTPUT FILES ............................................................................................. 12
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
GLOSSARY OF TERMS
Sound Pressure Level {SPL): a ratio of one sound pressure to a reference pressure (Lret) of
20 µPa. Because of the dynamic range of the human ear, the ratio is calculated logarithmically
by 20 log (L/Lret)
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 {Lm1n): 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 {Leci): 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.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square 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 La Costa Town Square
Residential Development consists of ninety-one (91) new multi-family units in 18 buildings. The
project site is located north of La Costa Avenue between Rancho Santa Fe Road and Camino De
Los Caches in the City of Carlsbad, CA.
The results of this analysis indicate that future vehicle noise from La Costa Avenue is the principal
source of community noise that could impact the site. It was determined from the detailed
analysis that the multifamily NSLU's adjacent to the roadways will comply with the City of
Carlsbad 60 dBA CNEL exterior noise standard without mitigation measures. Additionally, all
building facades were found to be below the General Plan Noise Element Standard, of 60 dBA
CNEL at multifamily dwellings. Therefore, an interior noise assessment is not required to
mitigate the exterior noise levels to an interior level of 45 dBA CNEL.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square 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 La Costa Avenue. 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 north of La Costa Avenue between Rancho Santa Fe Road and Camino De Los Coches.
Access to the project site is from La Costa Avenue. A general project vicinity map is shown in
Figure 1-1 on the following page.
1.3 Project Setting
The proposed project consists of 91 multi-family residences in 18 buildings. The existing site
conditions are characterized as disturbed land that was formerly graded but has no structures
onsite. Residential uses exist across La Costa Avenue to the south, east and west, and retail
uses existing to the north. A project site plan is shown in Figure 1-2 on Page 3 of this report.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
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1757-02 La Costa Town Square Noise Report
Figure 1-2: Project Site Plan
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Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square 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 based 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, travel speed, 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. Hard site conditions consist of concrete, asphalt and hard pack dirt
while soft site conditions exist in areas having grade changes, landscaped areas and vegetation.
On the other hand, fixed 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.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
3.0 SIGNIFICANCE THRESHOLDS AND STANDARDS
The City of Carlsbad's General Plan Noise Element requires that all exterior sensitive areas shall
limit noise exposure. Table 3-1 below (Table 5-2 of the General Plan) indicates acceptable limits of
noise for various land uses for both exterior and interior environments from transportation sources.
While Table 5-1 of the Noise Element establishes standards to help the city determine the
appropriateness of locating specific uses in noise-prone environments, Table 5-2 provides
standards that development shall attain through noise attenuation measures. These limits are
based on guidelines provided by the California Office of Planning and Research.
Table 3-1: Allowable Noise Exposure1
Outdoor Activit/' 3 Interior Spaces
Land Use Areas (dBA CNEL) (dBA CNEL)
Residential 604 45
Motels, Hotels 65 45
Hospitals, Residential Care
Facilities, Schools, Libraries, 65 45 Museums, Churches, Day Care
Facilities
Playgrounds, Parks, Recreation 65 50 Uses
Commercial and Office Uses 65 50
Industrial Uses 70 65
1 Development proposed within the McClellan-Palomar Airport Area of Influence
shall also be subject to the noise compatibility policies contained in the ALUCP.
2 For non-residential uses, where an outdoor activity area is not proposed, the
standard does not apply. Where the location of outdoor activity areas is
unknown, the exterior noise level standard shall be applied to the property line
of the receiving use.
3 Where it is not possible to reduce noise in outdoor activity areas to the allowable
maximum, levels up to 5 dB higher may be allowed provided that available
exterior noise level reduction measures have been implemented and interior
noise levels are in compliance with this table.
4 An exterior noise exposure level of 65 dBA CNEL is allowable for residential uses
in a mixed-use project and for residential uses within the McClellan-Palomar
Airport Area of Influence, pursuant to the noise compatibility policies contained
in the ALUCP.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
For noise sensitive residential land uses, the City has adopted a policy which has established a
"normally acceptable" exterior noise level goal of 60 dBA CNEL for the outdoor areas and an
interior noise level of less than 45 dBA CNEL. For residential properties identified as requiring a
noise study, the 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 the Noise
Element. If the acoustical study shows that exterior noise levels cannot be mitigated to the level
allowable as identified in this policy or less, the development should not be approved without
one or more of the following findings:
(1) Changes or alterations have been required in, or incorporated into, the project which avoid
or substantially lessen the significant environmental effect (noise).
(2) Changes or alterations to avoid or substantially lessen the significant environmental effect
(noise) are within the responsibility and jurisdiction of another public agency and not the City of
cartsbad. Such changes have been adopted by such other agency or can and should be
adopted by such other agency.
(3) Specific economic, social, or other considerations make infeasible the mitigation measures
or project alternatives to avoid or substantially lessen the significant environmental effect
(noise).
If a project is approved with exterior noise levels exceeding the level allowable pursuant to this
policy, all purchasers of the impacted property shall be notified in writing prior to purchase, and
by deed disclosure in writing, that the property they are purchasing is, or will be, noise
impacted and does not meet Carlsbad noise standards for residential property.
California Noise Insulation Standards (California Code of Regulations, Title 24) and the City of
Carlsbad Noise Element establish an interior noise standard of 45 dBA for residential structures.
Acoustical studies must be prepared for residential structures that are proposed to be located
within the Community Noise Equivalent Level (CNEL) noise contours of 60 dBA or greater. In
addition, the City requires residential structures located within the CNEL noise contours of 60 or
greater to prepare an acoustical study. The studies must demonstrate that the building is
designed to reduce interior noise to 45 dBA or lower (CNEL).
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square 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 200.
The ambient measurements were conducted on June 22, 2017 between 1 p.m. and 1:30 p.m.
The results of the noise level measurements are presented in Table 4-1. The measurement was
located adjacent to Rancho Santa Fe Road. The overall sound level was found to be roughly 60
dBA. The statistical indicators Lmax, Lmin, LlO, LS0 and L90, are given for the monitoring
location. As can be seen from the L90 data, 90% of the time the noise level is roughly 49 dBA.
The noise monitoring location can be seen in Figure 4-1 on the following page.
Table 4-1: Measured Ambient Noise Levels
Noise Levels (dBA)
Measurement Description Time Identification
Leq Lmax Lmin LlO LSO L90
ML1 Adjacent to La 1:00 p.m. -60.3 69.3 42.5 64.0 58.7 48.9 Costa Avenue 1:30 p.m.
Source: Ldn Consulting, Inc. 6/22/17
4.2 Future Noise Prediction Methodology
To determine the future noise environment and impact potentials the Caltrans Sound32 noise
model was utilized. 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.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
Figure 4-1: Ambient Monitoring Location
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Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
The required coordinate information necessary for the Sound32 traffic noise prediction model input
was taken from the preliminary site plans provided by Hunsaker & Associates, June 2017. To
determine 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 roadway and the roadway
segments were extended a minimum of 300 feet beyond the observer locations. To evaluate the
future potential noise impacts on the proposed development, outdoor observers were located in
the ground level patios, upper level balconies, and recreation areas adjacent to the roadways.
The first floor modeled observers were placed five feet above the finished pad elevation. In
addition, the top of pads were modeled to adjust for grade separation and the natural shielding
from the roadways.
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 the future
Buildout conditions. The vehicle mix provides the hourly distribution percentages of automobile,
medium trucks and heavy trucks for input into the Sound32 Model. The Buildout conditions include
the future year traffic volume forecasts provided in the SANDAG Series 13 Traffic Forecast 2035 as
shown in Table 4-2. To assess the peak hour traffic noise conditions, 10% of the ADT was utilized.
The future traffic noise model also utilizes the common vehicle mix found on City's roadways. The
modeled observer locations for a sampling of the Lots of the proposed project are presented in
Figure 4-2 on the following page.
Typically, three decibels of attenuation is allowed for the first row of buildings when they block 40
to 65% of the line of sight to the noise source, and three to five decibels of attenuation is allowed
when the buildings obstruct more than 65% of the line of sight (Source: CALTRANS Technical
Noise Supplement Section N-5515). The line of sight to the roadway from the second and third
floor balconies is blocked by the proposed structures by more than 40% due to th orientation of he
buildings, therefore a factor of 3 dBA was taken into account.
Table 4-2: Future Traffic Parameters
1 Source: SANDAG Series 13 Traffic Forecast 2035
2 10% of the ADT
3 Trucks observed at slower speeds
4 Typical Vehicle Mixed observed in carlsbad
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
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Ldn Consulting, Inc. 6/29/17
Figure 4-2: Modeled Receptor Locations
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1757-02 La Costa Town Square Noise Report
5.0 FINDINGS AND MmGATION
The Buildout analysis was modeled utilizing the roadway parameters described above in Section 4
and shown in Table 4-2 for the future conditions. The modeling results are quantitatively shown in
Table 5-1 below. It was determined from the detailed analysis that the single family NSLU's
adjacent to the roadways will comply with the City of carlsbad 60 dBA CNEL exterior noise
standard without mitigation measures. Additionally, all building facades were found to be below
the General Plan Noise Element Standard, of 60 dBA CNEL at multifamily dwellings. Therefore, an
interior noise assessment is not required to mitigate the exterior noise levels to an interior level of
45 dBA CNEL. The 532 models input parameters and output files for the future conditions with and
without mitigation are also provided in Attachment A.
Table 5-1: Future Exterior Noise Levels
Exterior
Common First Floor Building First Floor Second Floor Third Floor
Unmitigated Facade Receptor Patio Noise Balcony Noise Balcony Noise Use Area
Receptor Noise Level Receptor Location Levels Levels Levels
Number (dBA CNEL) Number (dBA CNEL) (dBA CNEL) (dBA CNEL)
1 59 1 Building 4 54 55 55
2 60 2 Building 4 57 57 58
3 58 3 Building 3 60 60 60
4 58 4 Building 3 56 58 59
5 Building 2 57 59 59
6 Building 1 59 57 58
7 Building 9 53 51 52
8 Building 10 52 50 51
9 Building 18 60 58 58
10 Building 17 57 57 57
11 Building 16 55 57 57
12 Building 16 57 58 58
13 Building 16 51 52 56
Interior Noise Study required if noise level is above 60 dBA CNEL per City Guidelines.
Ldn Consulting, Inc. 6/29/17 1757-02 La Costa Town Square Noise Report
ATTACHMENT A
FUTURE NOISE MODEL INPUT
AND OUTPUT FILES
La Costa Town Square -Ground Level Unmitigated
T-PEAK HOUR TRAFFIC CONDillONS, 1
1077 I 35 f 20 I 35 I 3 I 35
L-La Costa, 1
N,62,706,281,
N,139,644,277,
N,224,585,276,
N,344,521,277,
N,480,472,280,
N,622,442,280,
N,753,434,277,
N,882,442,273,
N,993,463,270,
N,1162,521,267,
N,1285,587,265,
N,1385,655,263,
N,1534,760,264,
N,1627,825,268,
N,1732,898,268,
B-West, 1 , 2 , 0 ,0
469,699,323,323,
488.,652,300,300,
492.,641,296,296,
536.,532,294,294,
619.,515,293,293,
713.,507,292,292,
788.,518,292,292,
812.,550,292,292,
830.,600,292,292,
828.,619,292,292,
B-East, 2 , 2 , 0 ,0
907,662,294,294,
932,592,294,294,
946,582,294,294,
972,580,293,293,
1055,611,294,294,
1197,664,295,295,
1332,754,297,297,
1332.,756,297,297,
1322.,849,299,299,
R, 1, 65 ,10
519,654,301.,Bldg 4
R, 2, 65 ,10
541,596,301.,Bldg 4
R, 3, 65 ,10
609,537,300.,Bldg 3
R, 4, 65 ,10
663,556,299.,Bldg 3
R, 5, 65 ,10
728,540,298.,Bldg 2
R, 6, 65 ,10
814,572,298.,Bldg 1
R, 7, 65 ,10
831,702,300.,Bldg 9
R, 8, 65 ,10
903,727,301.,Bldg 10
R, 9, 65 ,10
946,593,300.,Bldg 18
R, 10, 65 ,10
1020,619,300.,Bldg 17
R, 11, 65 ,10
1120,678,303.,Bldg 16
R, 12, 65 ,10
1181,685,303.,Bldg 16
R, 13, 65 ,10
1248,770,303.,Bldg 15
R, 14, 65 ,10
676,532,299.,Rec Area
R, 15, 65 ,10
772,534,298.,Rec Area
R, 16, 65 ,10
1076,646,303.,Rec Area
R, 17, 65 ,10
1209,693,303.,Rec Area c,c
SOUND32 -RELEASE 07/30/91
lTTLE:
La C.osta Town Square -Ground Level Unmitigated
REC REC ID DNL PEOPLE LEQ(CAL)
1 Bldg 4 65.
2 Bldg 4 65.
3 Bldg 3 65.
4 Bldg 3 65.
5 Bldg 2 65.
6 Bldg 1 65.
7 Bldg 9 65.
8 Bldg 10 65.
9 Bldg 18 65.
10 Bldg 17 65.
11 Bldg 16 65.
12 Bldg 16 65.
13 Bldg 15 65.
14 Rec Area 65.
15 Rec Area 65.
16 Rec Area 65.
17 Rec Area 65.
10. 53.8
10. 57.3
10. 59.7
10. 56.2
10. 57.3
10. 59.2
10. 53.2
10. 52.0
10. 60.1
10. 57.3
10. 54.8
10. 56.7
10. 51.3
10. 59.3
10. 59.9
10. 57.6
10. 58.4
La c.osta Town Square -Second Level Unmitigated
T-PEAK HOUR TRAFAC CONDmONS, 1
1077 , 35 , 20 , 35 , 3 , 35
L-l.a c.osta, 1
N,62, 706,281,
N,139,644,277,
N,224,585,276,
N,344,521,277,
N,480,472,280,
N,622,442,280,
N,753,434,277,
N,882,442,273,
N,993,463,270,
N,1162,521,267,
N,1285,587,265,
N,1385,655,263,
N,1534,760,264,
N,1627,825,268,
N, 1732,898,268,
B-West, 1 , 2 , 0 ,0
469,699,323,323,
488.,652,300,300,
492.,641,296,296,
536.,532,294,294,
619.,515,293,293,
713.,507,292,292,
788.,518,292,292,
812.,550,292,292,
830.,600,292,292,
828.,619,292,292,
B-East, 2 , 2 , 0 ,0
907,662,294,294,
932,592,294,294,
946,582,294,294,
972,580,293,293,
1055,611,294,294,
1197,664,295,295,
1332,754,297,297,
1332.,756,297,297,
1322.,849,299,299,
R, 1, 65 ,10
519,654,311.,Bldg 4
R, 2, 65 ,10
541,596,311.,Bldg 4
R, 3, 65 ,10
609,537,310.,Bldg 3
R, 4, 65 ,10
663,556,309.,Bldg 3
R, 5, 65 ,10
728,540,308.,Bldg 2
R, 6, 65 ,10
814,572,308.,Bldg 1
R, 7, 65 ,10
831,702,310.,Bldg 9
R, 8, 65 ,10
903,727,311.,Bldg 10
R, 9, 65 ,10
946,593,310.,Bldg 18
R, 10, 65 ,10
1020,619,310.,Bldg 17
R, 11, 65 ,10
1120,678,313.,Bldg 16
R, 12, 65 ,10
1181,685,313.,Bldg 16
R, 13, 65 ,10
1248,770,313.,Bldg 15
K,-3
ALL,ALL c,c
SOUND32 • RELEASE 07/30/91
TITLE:
La Costa Town Square -Second Level Unmitigated
REC REC ID DNL PEOPLE LEQ(CAL)
1 Bldg 4 65. 10. 54.9
2 Bldg 4 65. 10. 56.6
3 Bldg 3 65. 10. 59.6
4 Bldg 3 65. 10. 57.7
5 Bldg 2 65. 10. 58.8
6 Bldg 1 65. 10. 56.9
7 Bldg 9 65. 10. 50.9
8 Bldg 10 65. 10. 50.2
9 Bldg 18 65. 10. 57.6
10 Bldg 17 65. 10. 57.4
11 Bldg 16 65. 10. 56.5
12 Bldg 16 65. 10. 57.6
13 Bldg 15 65. 10. 52.1
La Costa Town Square -Third Level Unmitigated
T-PEAK HOUR TRAFAC CONDITTONS, 1
1077 , 35 , 20 , 35 , 3 , 35
L-La Costa, 1
N,62,706,281,
N,139,644,277,
N,224,585,276,
N,344,521,277,
N,480,472,280,
N,622,442,280,
N,753,434,277,
N,882,442,273,
N,993,463,270,
N,1162,521,267,
N,1285,587,265,
N,1385,655,263,
N,1534,760,264,
N,1627,825,268,
N,1732,898,268,
B-West, 1 , 2 , 0 ,0
469,699,323,323,
488.,652,300,300,
492.,641,296,296,
536.,532,294,294,
619.,515,293,293,
713.,507,292,292,
788.,518,292,292,
812.,550,292,292,
830.,600,292,292,
828.,619,292,292,
B-East, 2 , 2 , 0 ,0
907,662,294,294,
932,592,294,294,
946,582,294,294,
972,580,293,293,
1055,611,294,294,
1197,664,295,295,
1332, 754,297,297,
1332.,756,297,297,
1322.,849,299,299,
R, 1, 65 ,10
519,654,321.,Bldg 4
R, 2, 65 ,10
541,596,321.,Bldg 4
R, 3, 65 ,10
609,537,320.,Bldg 3
R, 4, 65 ,10
663,556,319.,Bldg 3
R, 5, 65 ,10
728,540,318.,Bldg 2
R, 6, 65 ,10
814,572,318.,Bldg 1
R, 7, 65 ,10
831,702,320.,Bldg 9
R, 8, 65 ,10
903,727,321.,Bldg 10
R, 9, 65 ,10
946,593,320.,Bldg 18
R, 10, 65 ,10
1020,619,320.,Bldg 17
R, 11, 65 ,10
1120,678,323.,Bldg 16
R, 12, 65 ,10
1181,685,323.,Bldg 16
R, 13, 65 ,10
1248,770,323.,Bldg 15
K,-3
ALL,ALL c,c
SOUND32 -RELEASE 07/30/91
TITLE:
La Costa Town Square -Third Level Unmitigated
REC REC ID DNL PEOPLE LEQ(CAL)
1 Bldg 4 65.
2 Bldg 4 65.
3 Bldg 3 65.
4 Bldg 3 65.
5 Bldg 2 65.
6 Bldg 1 65.
7 Bldg 9 65.
8 Bldg 10 65.
9 Bldg 18 65.
10 Bldg 17 65.
11 Bldg 16 65.
12 Bldg 16 65.
13 Bldg 15 65.
10. 55.0
10. 57.6
10. 59.5
10. 58.5
10. 58.9
10. 57.6
10. 51.6
10. 50.9
10. 57.6
10. 57.4
10. 56.9
10. 57.5
10. 56.1