HomeMy WebLinkAboutCUP 99-30; CANNON COURT; NOISE ANALYSIS; 2000-07-14NOISE ANALYSIS FOR
CANNON COURT
CITY OF CARLSBAD
Report #00-31.A
July 14, 2000
Prepared for:
J.A. Buza Corporation
P.O. Box 8617
R~ncho Santa Fe, CA 92067
Prepared By:
Fred Greve, P.E.
Mestre Greve Associates
280 Newport Center Drive, Suite 230
Newport Beach, CA 92660-7528
Phone (949) 760-0891
•
NOISE ANALYSIS FOR
CANNON COURT
CITY OF CARLSBAD
EXTERIOR NOISE MITIGATION
Cannon Court
Mestre Greve Associates
Page 1
The Cannon Court project consists of a hotel, country store, and a restaurant. The City of Carlsbad
does not have any exterior noise standards for these uses, and therefore, no mitigation for outdoor
areas is necessary.
INTERIOR NOISE MITIGATION
Country Store and Restaurant
No building upgrades are necessary to meet the City's indoor noise standard of 55 CNEL for the
country store and restaurant.
Hotel
Building surfaces for the hotel will be exposed to worst case noise levels of 77.7 CNEL, and will
therefore require at least a 32.7 dB exterior to interior noise reduction in order to meet the 45 CNEL
interior noise standard. The exterior to interior noise reduction (EWNR) was calculated for a number
of units within the hotel (see Appendix lB for analysis data). Building upgrades are needed for a
number of rooms for the hotel. The building upgrades are summarized below and are detailed in
Exhibit S-1 for first floor areas, Exhibit S-2 for second floor areas, and Exhibit S-3 for third floor
areas. In all cases the area of most concern is the east end of the building that faces the freeway.
First Floor (Exhibit S-1)
1. Upgrade single window on side/comer room to EWNR rating of 28 (or STC rating of 31).
2. Upgrade windows on three units on east end to EWNR rating of 32 (or STC rating 35).
Second Floor (Exhibit S-2)
1. Upgrade all windows on the three east end units and the side/comer unit to EWNR rating of 32
(or STC rating of 35).
2. Upgrade all windows along north and south side of hotel to EWNR rating of 24 (or STC rating of
26).
3. Attach second layer of gypsum board on inside of wall for the three end units. The extra layer of
gypsum board must be attached with resilient clips (RC-I channels).
4. All attic vents should be baffled (see Exhibits S-4 and S-5).
Third Floor (Exhibit S-3)
I. Upgrade window on side corner room to EWNR rating of 32 (or STC rating of 35).
2. Upgrade all windows along north and south side of hotel to EWNR rating of 24 (or STC rating of
26).
MESTRE GREVE ASSOCIATES
1 . Upgrade window to
EWNRof28
(orSTCof31) _
~
2. Upgrade
windowto
EWNRof32
(orSTCof35
Exhibit S-1
First Floor Building Upgrades
2. Upgrade all windows along
side of hotel to EWNR of 24
(or STC of 26)
-;;;;;._--'lll&iiil~ 1. Upgrade. ~ ___ window to
EWNRof32
(orSTCof35)
3.Attachsecondlayerof
gypsum board to walls
2. Upgrade all windows
along side of hotel to EWNR
of24
( or STC of 26)
MESTRE GREVE ASSOCIATES
with resilient clips
4. Provide attic vent roof
baffles for all roof areas.
Exhibit S-2
Second Floor Building Upgrades
2. Upgrade all windows along
side of hotel to EWNR of 24
( or STC of 26)
3.Attachsecondlayerof
gypsum board to walls
with resilient clips
2. Upgrade all windows
along side of hotel to EWNR
of24
( or STC of 26)
MESTRE GREVE ASSOCIATES
1. Upgrade
windowto
EWNRof32
(or STC of 35)
4. Provide attic vent roof
baffles for all roof areas.
Exhibit S-3
Third Floor Building Upgrades
CROSS SECTION
(BOTH SIDES ARE ENCLOSED)
MESTRE GREVE ASSOCIATES
Exhibit S-4
Example of Attic Vent Baffle (Gable)
Cannon Court
Mestre Greve Associates
Page 2
3. Attach second layer of gypsum board on inside of wall for the side/corner unit. The extra layer
of gypsum board must be attached with resilient clips (RC-1 channels).
4. All attic vents should be baffled (see Exhibits S-4 and S-5).
MECHANICAL VENTILATION
Since the noise attenuation of a building falls to about 12 dB with windows open, all buildings
exposed to noise levels greater than 57 CNEL will meet the 45 CNEL interior noise standard only with
windows closed. In order to assume that windows can remain closed to achieve this required
attenuation, adequate ventilation with windows closed must be provided per the Uniform Building
Code (1997 UBC Section 1207.1). This can be achieved with mechanical ventilation to provide fresh
air. The system must fresh make-up air obtained directly from the outside per the UBC. The fresh air
inlet duct shall be of sound attenuating construction and shall consist of a minimum of ten feet of
straight or curved duct, or six feet plus one sharp 90 degree bend. Air conditioning units may be an
adequate substitute for mechanical ventilation as long as they meet the ventilation requirements
specified in the Uniform Building Code. The acceptability of using air conditioners to meet the
mechanical ventilation requirement varies by municipality. The local jurisdiction and the mechanical
engineer for the project should be consulted. All buildings on the site are required to have mechanical
ventilation.
Cannon Court
Mestre Greve Associates
Page 3
NOISE ANALYSIS FOR CANNON COURT
CITY OF CARLSBAD
1.0 INTRODUCTION
The purpose of this report is to assess compliance of Cannon Court with the noise standards of the
City of Carlsbad. The project calls for the construction of a hotel, country store and restaurant. This
report addresses the future noise levels at the project site in relation to the City's 45 CNEL interior
noise standard for the hotel and the 55 CNEL indoor noise standard for the country store and
restaurant.
Site plan and grading information was obtained from McArdle Associates Architects and received July
12, 2000.
The project is located in the City of Carlsbad, as shown in Exhibit 1. The primary noise sources in the
project area is traffic noise from the San Diego Freeway (1-5), and the San Diego Northern Railway.
2.0 CITY OF CARLSBAD NOISE STANDARDS
The City of Carlsbad specifies outdoor and indoor noise limits for residential land uses. Both standards
are based upon the CNEL index. CNEL or Community Noise Equivalent Level is a 24 hour time
weighted annual average noise level based on the A-weighted decibel. A-weighting is a frequency
correction that correlates overall sound pressure levels with the frequency response of the human ear.
Time weighting refers to the fact that noise occurring during certain noise-sensitive time periods is
given more significance because it occurs at these times. In the calculation process, noise occurring in
the evening time period (7 p.m. to 10 p.m.) is increased by 5 dB, while noise occurring in the
nighttime period (10 p.m. to 7 a.m.) is increased by 10 dB. These time periods and increases were
selected to reflect increased sensitivity to noise while sleeping, eating and relaxing.
The City of Carlsbad has adopted an interior noise standard of 45 CNEL for hotel uses which is
consistent with State building codes. The City has also adopted an interior noise standard of 55 CNEL
for commercial uses which would apply to the country store and restaurant. This analysis assesses the
noise levels within the project with respect to these standards.
3.0 METHODOLOGY
The traffic noise levels projected in this report were computed using the Highway Noise Model
published by the Federal Highway Administration ("FHWA Highway Traffic Noise Prediction
Model", FHW A-RD-77-108, December 1978). The FHW A Model uses traffic volume, vehicle mix,
vehicle speed, and roadway geometry to compute the "equivalent noise level". A computer code has
been written which computes equivalent noise levels for each of the time periods used in CNEL.
Weighting these noise levels and summing them results in the CNEL for the traffic projections used.
For the railroad noise, on-site noise measurements where conducted to determine typical noise levels
for Amtrak, Coaster, and freight train operations. These noise levels were then combined with
forecasts for train operations to obtain a projection of future CNEL noise levels.
PROJECT Sil
CARLSBAD
MESTRE GREVE ASSOCIATES
lm!UAN
PAtGIMR
Exhibit 1
Vicinity Map
4.0 NOISE EXPOSURE
4.1 Traffic Noise Exposure
Cannon Court
Mestre Greve Associates
Page4
Future traffic infonnation (2020 build out) for 1-5 was obtained from Mr. Bob Gibbs of the San Diego
County District of Caltrans. Table 1 presents the traffic volumes, vehicle speeds, and roadway grades
used in the CNEL calculations and Table 2 presents the traffic distribution used in the calculations.
Truck mix percentages are indicative of what is currently operating on the freeway and were obtained
from the "1997 Annual Average Daily Truck Traffic on the California State Highway System," (State
of California Department of Transportation, December 1998).
TABLE 1
Future Traffic Volumes, Speeds and Roadway Grades
Roadway Traffic Volume (ADT)
San Diego Freeway (1-5) 235,000
TABLE2
Traffic Distribution per Time of Day in Percent of ADT
Vehicle Type
Automobile
Medium Truck
Heavy Truck
Day
58.02
2.46
2.52
Evening
16.58
0.74
0.76
Night
17.50
0.74
0.76
Speed Grade(%)
65 <2%
The FHW A model used these assumptions to compute the future noise levels at the project site. Table
3 reports the modeling results in terms of distances to the 60, 65, and 70 CNEL contours. These
represent the distances from the centerline of the roadway to the contour value shown.
TABLE3
Distance to Noise Contours for Future Traffic Conditions
Distance to CNEL Contour (ft.)
Roadway -70--65--60-
San Diego Freeway 703 1514 3261
4.2 Railway Noise Exposure
Cannon Court
Mestre Greve Associates
Page5
The San Diego Northern Railway runs adjacent to the proposed project site. Noise measurements of
the San Diego Northern Railway were made on January 27, 2000. The noise measurements were
performed at a distance of 190 feet with no intervening topography. These measurements were made
with a Brue] & Kjaer Type 2236 Sound Level Meter. The system was calibrated before and after each
measurement series. These noise measurement systems meet the American National Standards
Institute "Type l" specifications, which is the most accurate for community noise measurements. The
meter and calibrator have current certification traceable to the National Bureau Of Standards.
The noise exposure of the San Diego Northern Railway was measured in terms of SEL, the sound
exposure level, The SEL represents the total acoustic energy of an event. Therefore, an event that lasts
longer but is quieter, can have the same SEL as an event that is shorter but louder. The measurement
results are presented in Appendix lA, and summarized in Table 4. The summary below provides the
energy average SEL measured and the average number of cars for each train type.
Table 4
Train Measurement Summary (dBA)
Train Type
Coaster
Amtrak
Freight
Average SEL
92.4
97.1
97.6
Average No. of Cars
4
6
57
The "Assessment of Noise Environments Around Railroad Operations," (Wyle Laboratories Report
WCR-73-5, July 1973) was used in conjunction with the noise measurements to model the train noise·
levels on the project site. The Wyle Train Model was run for each train type and compared to the noise
measurement results. Adjustments were then made to the model so that the model for individual trains
matched the measurement results. The calibrated model was then used with the operation forecasts to
project future CNEL noise levels.
Data on railroad operations were obtained from the North San Diego County Transit Development
Board. The railroad line is used for freight, Amtrak, and commuter train operations. The times, speeds,
and number of evening, night-time, and day-time train operations were used with the train noise model
to project future train noise levels for the different types of trains. Future train operations were
projected to include 24 commuter train operations, 28 Amtrak operations, and 4 freight train
operations (these are the projected operations for the year 2010).
The closest portion of the hotel site will be located approximately 260 feet from the centerline of the
tracks. The results of the analysis indicate that the hotel will be exposed to worst case unmitigated
railway noise levels of approximately 64.8 CNEL. The country store would be expose to train noise as
high as 63.6 CNEL, and the restaurant exposed to 69.8 CNEL.
4.3 Combined Noise Exposure
The railroad runs along the west side of the project site, and the 1-5 runs along the east side of the
project site. Exhibit 2 provides the combined noise levels for all of the buildings on-site. Noise levels
in terms of CNEL are provided for each of the four sides of the buildings. The east side of the hotel
building will be the loudest and is exposed only to freeway noise. The north and south sides of the
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MESTRE GREVE ASSOCIATES
ttl
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Exhibit 2
Noise Exposure (CNEL)
Cannon Court
Mestre Greve Associates
Page6
hotel will be slightly quieter. These two sides are exposed to both the railroad and freeway noise,
however, the angle of view to both the freeway and railroad are limited, and therefore, the noise is
slightly less. The west side of the hotel is exposed only to the railroad, and in terms of the CNEL
noise scale is the quietest. Similar situations occur for the other two buildings.
5.0 EXTERIOR NOISE MITIGATION
The Cannon Court project consists of a hotel, country store, and a restaurant. The City of Carlsbad
does not have any exterior noise standards for these uses, and therefore, no mitigation for outdoor
areas is necessary.
6.0 INTERIOR NOISE MITIGATION
The residential rooms of the hotel must comply with the City of Carlsbad interior noise standard of 45
CNEL, and the country store and restaurants must meet an indoor standard of 55 CNEL. To meet the
interior noise standard, the buildings must provide sufficient outdoor to indoor building attenuation to
reduce the noise to acceptable levels. The outdoor to indoor noise reduction characteristics of a
building are determined by combining the transmission loss of each of the building elements which
make up the building. Each unique building element has a characteristic transmission loss. For
residential units, the critical building elements are the roof, walls, windows, doors, attic configuration
and insulation. The total noise reduction achieved is dependent upon the transmission loss of each
element, and the surf ace area of that element in relation to the total surface area of the room. Room
absorption is the final factor used in determining the total noise reduction.
The most direct way of computing the total building noise reduction is through the use of the
methodology published by the Federal Highway Administration ("Insulation of Buildings Against
Highway Noise," FHW A TS 77-202). This methodology consists of a single number rating concept
weighted for a specific noise. This is similar to the more traditional Sound Transmission Class (STC)
rating except that it is specifically weighted to account for the frequency components of transportation
noise sources. The FHW A methodology incorporates the Exterior Wall Noise Rating scale (EWNR).
The FHW A has published EWNR data for the noise reduction characteristics of various building
elements and construction techniques. This data is based upon empirically derived data on
construction materials and practices in use today. The following paragraphs specify the construction
details that were utilized in estimating the outdoor to indoor noise reduction.
The pertinent construction details were obtained from architectural plans provided by McArdle
Associates Architects and received in January and February 2000. The following is a summary of the
key building elements.
Hotel
1. Roofs are attic space constructions and incorporate wood shingles on the exterior and
gypsum drywall on the interior surface of the living areas. Attic spaces are insulated
with fiberglass insulation, and roofs are sloped.
2. Exterior walls for the second and third floors are wood stud construction with
horizontal wood lap siding exteriors and minimum 1/2 inch gypsum drywall on the
interior. On the first floor the exterior is stone.
Cannon Court
Mestre Greve Associates
Page 7
3. Windows are assumed to be single glazed. The operable windows were estimated to
achieve a noise reduction rating of at least EWNR=22.
Building surfaces for the hotel will be exposed to worst case noise levels of 77.7 CNEL, and will
therefore require at least a 32.7 dB exterior to interior noise reduction in order to meet the 45 CNEL
interior noise standard. The exterior to interior noise reduction (EWNR) was calculated for a number
of units within the hotel (see Appendix lB for analysis data). Building upgrades are needed for a
number of rooms for the hotel. The building upgrades are summarized below and are detailed in
Exhibit 3 for first floor areas, Exhibit 4 for second floor areas, and Exhibit 5 for third floor areas. In
all cases the area of most concern is the east end of the building that faces the freeway.
First Floor (Exhibit 3)
1. Upgrade single window on side/comer room to EWNR rating of 28 ( or STC rating of
31).
2. Upgrade windows on three units on east end to EWNR rating of 32 (or STC rating
35).
Second Floor (Exhibit 4)
1. Upgrade all windows on the three east end units and the side/comer unit to EWNR
rating of 32 ( or STC rating of 35).
2. Upgrade all windows along north and south side of hotel to EWNR rating of 24 ( or
STC rating of 26).
3. Attach second layer of gypsum board on inside of wall for the three end units. The
extra layer of gypsum board must be attached with resilient clips (RC-1 channels).
4. All attic vents should be baffled (see Exhibits 6 and 7).
Third Floor (Exhibit 5)
1. Upgrade window on side comer room to EWNR rating of 32 ( or STC rating of 35).
2. Upgrade all windows along north and south side of hotel to EWNR rating of 24 (or
STC rating of 26).
3. Attach second layer of gypsum board on inside of wall for the side/comer unit. The
extra layer of gypsum board must be attached with resilient clips (RC-1 channels).
4. All attic vents should be baffled (see Exhibits 6 and 7).
Country Store
Building surfaces for the Country Store will be exposed to worst case noise levels of 75.8 CNEL, and
will therefore require at least a 20.5 dB exterior to interior noise reduction in order to meet the 55
CNEL interior noise standard. The exterior to interior noise reduction (EWNR) was calculated for the
worst case room in the Country Store (see Appendix lB for analysis data). The building will achieve
the City indoor noise standard without building upgrades. Key elements of the building are as follows.
1. Roofs are attic space constructions and incorporate wood shingles on the exterior and
gypsum drywall on the interior surface of the living areas. Attic spaces are insulated
with fiberglass insulation, and roofs are sloped.
MESTRE GREVE ASSOCIATES
1. Upgrade window to
EWNRof28
(orSTCof31) _
2. Upgrade
windowto
EWNRof32
(orSTCof35
Exhibit 3
First Floor Building Upgrades
2. Upgrade all windows along
side of hotel to EWNR of 24
(or STC of 26)
1. Upgrade
windowto
EWNRof32
(or STC of 35)
3. Attach second layer of
gypsum board to walls
2. Upgrade all windows
along side of hotel to EWNR
of24
(or STC of 26)
MESTRE GREVE ASSOCIATES
with resilient clips
~
4. Provide attic vent roof
baffles for all roof areas.
Exhibit 4
Second Floor Building Upgrades
3. Attach second layer of
gypsum board to walls
with resilient clips
t
2. Upgrade all windows along
side of hotel to EWNR of 24
( or STC of 26)
1.Upgrade
windowto
EWNRof32
(orSTCof35)
4. Provide attic vent roof
baffles for all roof areas.
2. Upgrade all windows
along side of hotel to EWNR
of24
( or STC of 26)
MESTRE GREVE ASSOCIATES
Exhibit 5
Third Floor Building Upgrades
CROSS SECTION
(BOTH SIDES ARE ENCLOSED}
MESTRE GREVE ASSOCIATES
Exhibit 6
Example of Attic Vent Baffle (Gable)
___ { __ _
U Inches
(No Scale)
L,.------Ceiling Joist ..
--l----.... ---•·:·-··:·-··::··:-·.~·.··:·:··:-·.··:·:·:.··:: .':· .:: .. :· .. :· .. : ............... • .:::: .. :: .. : ... : ..... • ... ·. ,.....,,._ _____ 1" Thick Noise
Insulation Material
VIEW LOOKING
DOWN FROM
TOP OF VENT
18 Inches ~ 5/8" Gypsum Board
---------------------------.
2x4 Strut
I" Thick Noise
Insulation Material
(e.g., Owens Corning
____ 703 or 705
Compressed Fiberglas)
Mounted On 5/8"
Gypsum Board
I
1 Edge Of Noise
•◄◄-------Insulation Material I
1 (hidden behind roof) ---------------------------
MESTRE GREVE ASSOCIATES
Exhibit 7
Example of Attic Vent Baffle (Roof)
Cannon Court
Mestre Greve Associates
Page 8
2. Exterior walls are wood stud construction with horizontal wood lap siding exteriors
and minimum 1/2 inch gypsum drywall on the interior.
3. Windows are assumed to be single glazed. The operable windows were estimated to
achieve a noise reduction rating of at least EWNR=22.
Restaurant A
Building surfaces for the Restaurant A will be exposed to worst case noise levels of 76.2 CNEL, and
will therefore require at least a 21.2 dB exterior to interior noise reduction in order to meet the 55
CNEL interior noise standard. The exterior to interior noise reduction (EWNR) was calculated for the
worst case room in the Restaurant A (see Appendix lB for analysis data). The building will achieve
the City indoor noise standard without building upgrades. Key elements of the building are as follows.
1. Roofs are attic space constructions and incorporate wood shingles on the exterior and
gypsum drywall on the interior surface of the living areas. Attic spaces are insulated
with fiberglass insulation, and roofs are sloped.
2. Exterior walls are wood stud construction with horizontal wood lap siding exteriors
and minimum 1/2 inch gypsum drywall on the interior. The bottom 3 feet of the wall
has a stone exterior instead of wood sideing.
3. Windows are assumed to be single glazed. The operable windows were estimated to
achieve a noise reduction rating of at least EWNR=22.
Restaurant B
Building surfaces for the restaurant will be exposed to worst case noise levels of 70.8 CNEL, and will
therefore require on 15.8 dBA exterior to interior noise reduction in order to meet the 55 CNEL
interior noise standard. Calculations are only required when the exterior to interior noise reduction
required is greater than 20 dBA. No building upgrades will be required for the restaurant to meet the
interior noise standard.
Mechanical Ventilation
Since the noise attenuation of a building falls to about 12 dB with windows open, all buildings
exposed to noise levels greater than 57 CNEL will meet the 45 CNEL interior noise standard only with
windows closed. In order to assume that windows can remain closed to achieve this required
attenuation, adequate ventilation with windows closed must be provided per the Uniform Building
Code (1997 UBC Section 1207.1). This can be achieved with mechanical ventilation to provide fresh
air. The system must fresh make-up air obtained directly from the outside per the UBC. The fresh air
inlet duct shall be of sound attenuating construction and shall consist of a minimum of ten feet of
straight or curved duct, or six feet plus one sharp 90 degree bend. Air conditioning units may be an
adequate substitute for mechanical ventilation as long as they meet the ventilation requirements
specified in the Uniform Building Code. The acceptability of using air conditioners to meet the
mechanical ventilation requirement varies by municipality. The local jurisdiction and the mechanical
engineer for the project should be consulted. All buildings on the site are required to have mechanical
ventilation.
APPENDIX IA
Train Measurement Data
Cannon Court
Mestre Greve Associates
Page9
Train Noise Measurements for Cannon Court
Measurements made on January 27, 2000
Measurements conducted from 6:15 a.m. until noon
Time SEI.. Lmax Used Hom? Type
6.19 86.3 79.9 y Coaster
6.52 92.9 86.9 y Coaster
7.00 94.0 90.1 y Amtrak
7.24 92.4 87.7 y Coaster
7.32 88.0 79.2 y Coaster
7.54 95.9 90.8 y Coaster
7.58 89.1 81.0 y Amtrak
8.13 101.2 98.4 y Amtrak
8.43 Missed measurement y Coaster
8.53 92.8 87.5 y Amtrak
10.14 94.4 89.4 y Amtrak
10.38 100.4 96.8 y Amtrak
10.40 97.6 89.0 y Freight
11.08 Missed measurement y Coaster
11.20 97.7 93.8 y Amtrak .
11.45 94.7 90.9 y Amtrak
Direction Cars
S3 4
S3 4
1\13 4
S3 4
1\13 4
S3 4
1\13 6
S3 6
1\13 5
1\13 5
1\13 7
S3 7
1\13 57
S3 4
I\B 5
S3 7
APPENDIXlB
EWNR Calculation Sheets
Cannon Court
Mestre Greve Associates
Page IO
Cannon Court Hotel-No Mitigation
I
I
Corner Room on End
BUILDING ELEMENT AREA (ftA2)
Walls (2) 255
Roof 285
Windows (2) 85
TOTAL AREA (ft"2) 625
10 Log S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCllON NEEDED
Corner Room on Side
BUILDING ELEMENT AREA (ft"2)
Walls (2) 257.5
Roof 338
Windows (1) 42.5
TOTAL AREA (ft"2) 638
10 Loo S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED .
Side Room
BUILDING ELEMENT AREA (ft"2)
Walls (1) 105
Roof 442
Windows (1) 25
TOT AL AREA (ft"2) 572
10 Log S/A -4
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
~
48
70
22
25.6
1
24.6
32.7
l=WNR
48
70
22
28.7
1
27.7
32.7
E'M'JR
48
70
22
33.5
1
32.5
29.9
OOMMENTS
Stone veneer
room above
basic window
COMMENTS
Stone veneer
room above
basic window
COMMENTS
Stone veneer
room above
basic window
EWNRCalcs
1st Floor
10"{-EWNR/10)
0.004041478
0.0000285
0.536313743
0.54038372
10"(-EWNR/10)
0.0040811
0.0000338
0.268156871
0.272271771
10"(-EWNR/1 0t
0.001664138
0.0000442
0. 157739336
0. 15944 767 4
Cannon Court Hotel-Final Mitigation
I
Corner Room on End '
BUILDING ELEMENT AREA (ft"2)
Walls (2) 255
Roof 285
Windows (2) 85
TOT AL AREA (ft"2) 625
10 Loo S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCllON NEEDED
Corner Room on Side
BUILDING ELEMENT AREA (ft"2)
Walls (2) 257.5
Roof 338
Windows (1) 42.5
TOTAL AREA (ft"2) 638
10 Log S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED .
Side Room
BUILDING ELEMENT AREA (ft"2)
Walls (1) 105
Roof 442
Windows (1) 25
TOT AL AREA (ft"2) 572
10 Log S/A -4
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
eM\R
48
70
32
35.3
1
34.3
32.7
EWNR
48
70
28
34.5
1
33.5
32.7
EWNR
48
70
22
33.5
1
32.5
29.9
COMMENTS
Stone veneer
room above
high uoorade
COMM8'ITS
Stone veneer
room above
moderate uoarade
COMMENTS
Stone veneer
room above
basic window
EWNRcaJcs
1st Floor
"(-EWNR/10)
0.00404148
0.0000285
0.05363137
0.05770135
"(-EWNR/10)
0.0040811
0.0000338
0.06735796
0.07147286
"(-EWNR/10)
0.00166414
0.0000442
0.15773934
0.15944767
Cannon Court Hotel-No Mitigation
Corner Room on End
BUILDING ELEMENT AREA (ft"2)
Walls (2) 300
Roof 285
Windows (2) 40
TOT AL AREA (ft"2) 625
10 LoQ S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
Corner Room on Side
BUILDING ELEMENT AREA (ft"2)
Walls (2) 275
Roof 338
Windows (1) 25
TOTAL AREA (ft"2) 638
10 Log S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUC11ON NEEDED .
Side Room
BUILDING ELEMENT AREA (ft"2)
Walls (1) 105
Roof 442
Windows (1) 25
TOTAL AREA (ft"2) 572
10 Loo S/A -4
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
8M\fl
31
34
22
25.1
1
24.1
32.7
E'M\IR
31
34
22
26.0
1
25.0
32.7
E'M\IR
31
60
22
31.7
1
30.7
29.9
COMMENTS
Wood siding
attic space wood shingle
basic window
OOMMENTS
Wood siding
attic space wood shingle
basic window
COMMENTS
Wood siding
Covered w/3rd Floor
basic window
EWNRCalcs
2nd Floor
10"(-EWNR/10)
0.23829847
0.113460544
0.252382938
0.604141952
10A(-EWNR/10)
0.218440265
0.134560224
0.157739336
0.510739824
10"(-EWNR/10)
0.083404465
0.000442
0.157739336
0.241585801
Cannon Court Hotel-Final Mitigation
Corner Room on End
BUILDING ELEMENT AREA (ft"2)
Walls (2) 300
Roof 285
Windows (2) 40
TOT AL AREA (ft"2) 625
10 Log S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
Corner Room on Side
BUILDING ELEMENT AREA (ft"2)
Walls (2) 275
Roof 338
Windows (1) 25
TOT AL AREA (ft"2) 638
10 Loo S/A -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED .
Side Room
BUILDING ELEMENT AREA (ft"2)
Walls (1) 105
Roof 442
Windows (1) 25
TOT AL AREA (ft"2) 572
10 Log S/A -4
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
E.VvN={
42
39.5
32
34.1
1
33.1
32.7
EVVNR
42
39.5
32
34.5
1
33.5
32.7
E\M\IR
31
60
24
32.9
1
31.9
29.9
COMMENTS
Double Mass.resilient moI
with baffles
double pane
COMMENTS
Double Mass,resilient mo1
with baffles
high uoarade
COMMENTS
Wood sidinQ
Covered w/3rd Floor
slight upgrade
EWNRCalcs
2nd Floor
"(-EWNR/10)
0.01892872
0.03197753
0.02523829
0.07614454
"(-EWNR/10)
0.01735133
0.03792422
0.01577393
0.07104948
"(-EWNR/10)
0.08340446
0.000442
0.09952679
0.18337326
Cannon Court Hotel-No Mitigation
Corner Room on End
BUILDING ELEMENT AREA (ft/'2)
Walls (2) 435
Roof 429
Windows (2) 25
TOTAL AREA (ft"2) 889
10 Loa SIA -1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
Side Room
BUILDING ELEMENT AREA (ft"2)
Walls (1) 105
Roof 442
Windows (11 25
TOTAL AREA (ft"2) 572
10 Loa SIA -4
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED .
eM\R
31
34
22
26.2
1
25.2
32.7
EWNR
31
34
22
29.4
1
28.4
29.9
COMMENTS
Wood siding
attic space wood shingle
basic window
COMMENTS
Wood siding
attic space wood shingle
basic window
EWNRCalcs
3rd Floor
10"(-EWNRl10)
0.345532782
0.170787976
0.157739336
0.674060094
10"(-EWNRl101
0.083404465
0.175963369
0.157739336
0.41710717
Cannon Court Hotel-Final Mitigation
Corner Room on End
BUILDING ELEMENT AREA (ft"2)
Walls (2) 435
Roof 429
Windows (2) 25
TOTAL AREA (ft"2) 889
10 Log S/A -1
TOT AL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
Side Room
BUILDING ELEMENT AREA (ftl\2)
Walls (1) 105
Roof 442
Windows (1) 25
TOT AL AREA (W-2) 572
10 Log S/A -4
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
I
I
~
42
39.5
32
34.9
1
33.9
32.7
eNNR
31
39.5
24
31.9
1
30.9
29.9
COMM8'ITS
Double Mass.resilient moI
with baffles
high uoarade
COMM8'ITS
Wood siding
with baffles
slioht uoorade
EWNRCalcs
3rd Floor
"(-EWNR/10)
0.02744664
0.04813459
0.01577393
0.09135517
"(-EWNR/10)
0.08340446
0.04959322
0.09952679
0.23252447
Country Store-No Mitigation
Country Store
BUILDING ELEMENT AREA (ttA2)
Walls (2) 755
Roof 1760
Windows (4) 135
Sectional Doors (3) 300
TOT AL AREA (ft"2) 2950
10 Log S/A 1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
EWt.f\
31
34
22
23
22.1
1
21.1
20.8
COMMENTS
Wood siding
attic space wood shingle
basic window
EWNRCalcs
Country Store
10"(-EWNR/10)
0.599717817
0.70066862
0.851792415
1.503561701
3.655740553
Restaurant A -No Mitigation
Restaurant A
BUILDING ELEMENT AREA (ftA2)
Wall -wood 544
Roof 792
Windows 101
Wall -stone 258
TOT AL AREA (ft"2) 1695
10 Log S/A 1
TOTAL NOISE REDUCTION:
S.F.
FINAL NOISE REDUCTION
NOISE REDUCTION NEEDED
~
31
34
22
48
23.9
1
22.9
21.2
OOMMENTS
Wood siding
attic space wood shinale
basic window
Stone siding
EWNRCalcs
Restaurant A
10"(-EWNR/1 O)
0.43211456
0.315300879
0.637266918
0.004089024
1.388771381