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HomeMy WebLinkAboutCT 14-07; BEACHWALK AT ROOSEVELT; NOISE STUDY; 2014-07-02WIElAND ACOUSTICS noise ft vibration consultants WIELAND ACOUSTICS, INC. 1371 Warner Avenue, Suite A Tustin, CA 92780 Tel: 949.474.1222 www.wlelandacoustics.com Noise Study for the Proposed Carlsbad Village Residential Development at 2683 Roosevelt Street in the City of Carlsbad Project File 14.013.00 July 2, 2014 Prepared for: Vesta Pacific Development 1818 First Avenue, Su ite 100 San Diego, CA 92101 Prepared by: David Wieland, Principal Consult ant WIELAND ACOUSTICS nol ~e & 1.dbr11t,an consu1!111nts Table of Contents VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL 1 INTRODUCTION/PROJECT DESCRIPTION ............................................................................... 1 2 NOISE STANDARDS .............................................................................................................. 3 2.1 CITY OF CARLSBAD ..................................................................................................................... 3 2.2 STATE OF CALIFORNIA NOISE INSULATION STANDARDS .................................................................... 3 3 EXTERIOR NOISE LEVELS ....................................................................................................... 4 3.1 NOISE MEASUREMENTS .............................................................................................................. 4 3.2 NOISE MODELING ...................................................................................................................... 4 4 ASSESSMENT OF IMPACT ..................................................................................................... 5 S NOISE CONTROL REQUIREMENTS ......................................................................................... 6 5.1 EXTERIOR NOISE CONTROL .......................................................................................................... 6 5.2 INTERIOR NOISE CONTROL .......................................................................................................... 7 6 CONCLUSION ....................... .-............................................................................................. 10 7 IMPLEMENTATION DISCLAIMER ......................................................................................... 10 8 REFERENCES ...................................................................................................................... 10 List of Tables Table 3-1. Existing and Future Train Volumes on BNSF Railroad Adjacent to Project Site ................... 5 Table 4-1. Assessment of Exterior Noise Impact.. ................................................................................. 6 List of Figures Figure 1-1. Location of Project Site ....................................................................................................... 1 Figure 1-2. Proposed Site Plan ............................................................................................................... 2 Figure 5-1. Drainage Scupper at Balcony Barrier .................................................................................. 7 Figure 5-2. Acoustical Baffle for Attic Vent ........................................................................................... 9 List of Appendices Appendix I. Appendix II . Appendix Ill. Noise Measuremen·ts Exterior Noise Analysis Interior Noise Analysis www.wielandacoustics.com July 2, 2014 • I , WIELAND • ACOUSTICS nohe ft v1bra11on consult•nls 1 Introduction/Project Description VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL The purpose of this study is to provide a noise analysis for the proposed 16-unit townhome development to be located at 2683 Roosevelt Street in the City of Carlsbad, California. Refer to Figure 1-1 for the location of the project site and Figure 1-2 for the proposed site plan. The project site is bounded on the northwest and southeast by existing single family homes, on the northeast by Roosevelt Street, and on the southwest by existing commercial properties located on State Street. Located further to the southwest, at a distance of about 550 feet, is the Burlington Northern Santa Fe (BNSF) railroad. This railroad is used by both passenger trains (Amtrak and COASTER) and freight trains (BNSF). Based on a review by the City of Carlsbad Community & Economic Development Department (1), the railroad will be the only noise source addressed in this study. Figure 1-1. Location of Project Site www.wielandacoustics.com 1 July 2, 2014 WIELAND ACOUSTICS noise & vibration consultants VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL ---------·-·----------------------------- ROOSEVELT STREET Figure 1·1. Proposed Site Plan The following report provides a description of the noise standards that apply to the project, an analysis of the future noise environment at the site, an assessment of impact relative to the noise standards, and noise mitigation recommendations. www.wlelandacoustics.com 2 July 2, 2014 ; WIELAND ACOUSTICS nots<e & v1bri1t10n consultint~ 2 Noise Standards 2. 1 City of Carlsbad VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL The City of Carlsbad's Noise Guidelines Manual [2] identifies the maximum permissible exterior and interior noise levels for residential uses. Exterior noise levels must be mitigated to a community noise equivalent level (CNEL) of 60 dB or less, except for areas impacted by McClellan Palomar Airport, which must be mitigated to 65 dB CNEL or less. It is noted that the project site is well outside of the 60 dB CNEL noise contour for McClellan Palomar Airport [3] and, therefore, it is not considered impacted by the airport for the purposes of this study. It is our understanding that, for multi-family developments such as the proposed project, the exterior noise standard applies only to the required outside habitable space (i.e., the square footage of exterior habitable space required by City code for each unit). For this project, the developer has generally designated the balconies for each unit to be the exterior habitable space. However, for some units, the Code requirement may be satisfied with the entry patio. Interior noise levels must be mitigated to 45 dB CNEL or less when openings to the exterior of the residence are closed. Under certain circumstances, a project may be approved even if exterior or interior noise levels cannot be mitigated to comply with the standards of the City's Noise Guidelines Manual. Such approval requires the following findings: "a. The developer of the project has proved to the satisfaction of the Planning Commission or Design Review Board that it is not feasible to comply with the standard. b. The Planning Cam mission or Design Review Board must find that there are specifically identified overriding social and economic considerations which warrant approval of the development even though it does not meet the noise standard. c. 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 noise impacted and does not meet Carlsbad noise standards for residential property." 2.2 State of California Noise Insulation Standards All multifamily projects must comply with the State of California's noise insulation standards (CAC Title 24). The State's Title 24 standards specify that the intrusion of noise from exterior sources (such as trains) shall not exceed a CNEL of 45 dB within the interior of any habitable space. In addition, the State standards set minimum ratings for the sound and impact transmission of party wall and floor/ceiling separation assemblies. This report only provides an evaluation of, and recommendations for, the exterior-to-interior requirements of the State standards. It is the project developer and/or architect's responsibility to ensure compliance with the separation assembly requirements of the State standards. www.wle landacoustics.com 3 July 2, 2014 WIELAND ACOUSTICS noh~ 8 vibration coniullan1~ 3 Exterior Noise Levels VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL As discussed previously, the only source of noise considered in this study is the railroad located to the southwest. The overall noise levels generated by the railroad are determined by a combination of variables including the type and number of trains, the length and speed of trains, the time of day at which trains pass by, the use of train horns associated with at-grade crossings, the distance from the railroad to the project site, and the presence of intervening walls or structures. In order to assess the net result of all these variables on the overall noise exposure at the project site, noise levels measured at the project site were used to calibrate a 3-dimensional computer noise model to the existing noise environment. Available data regarding future proposed train operations, and site and architectural plans, were then used to update the model to represent the future conditions at the site and estimate future noise levels. The following sections describe the noise measurements and modeling in further detail. 3. 1 Noise Measurements In order to document the existing noise environment at the project site, a noise measurement was obtained over a 24-hour period between June 3 and June 4, 2014. Average noise levels were logged every hour in order to enable the calculation of the existing CNEL exposure. The measurement microphone was positioned at the approximate setback of the nearest proposed building fa~ade to the railroad at a height of about 20' above the ground. This measurement height was selected in order to be more representative of the upper floors of the proposed buildings. The results of the noise measurements, which are tabulated in Appendix I, indicate an existing CNEL of 61.0 dB at this location. The instrumentation used to obtain the noise measurement consisted of an integrating sound level meter (Model 820) and an acoustical calibrator (Model CAL200) manufactured by Larson Davis Laboratories. The accuracy of the calibrator is maintained through a program established by the manufacturer, and is traceable to the National Bureau of Standards. All instrumentation meets the requirements of the American National Standards Institute (ANSI) Sl.4. 3.2 Noise Modeling The results of the on-site noise measurement were used to develop a calibrated 3-dimensional computer noise model of the project site utilizing Sound PLAN software. This software takes a number of significant variables into account, including noise source sound power levels, the distance from sources to receivers, the heignts of sources and receivers, barrier effects provided by topography or structures, and noise reflected from hard surfaces such as walls and buildings. After the model had been calibrated to the noise measurements for existing conditions, it was updated to represent the future conditions at the site. These updates consisted of the following: 1. Addition of the proposed buildings at the project site. 2. Future double-tracking of the railroad in the vicinity of the project site. www.wielandacoustics.com 4 July 2, 2014 . WIELAND , ACOUSTICS noise & vibration consu1t1nr11;; VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL 3. Future increases in the number of trains using the railroad each day. The changes affecting the on-site buildings were based on the referenced project plans (4-6). The inclusion of future double-tracking was based on publicly available environmental/planning documents (7) for proposed improvements to the Los Angeles-San Diego-San Luis Obispo (LOSSAN) Rail Corridor, which includes the BNSF railroad adjacent to the project site. The estimated increase in rail traffic was determined from existing train timetables and from data provided in the· LOSSAN Corridorwide Strategic Implementation Plan (7). Table 3-1 summarizes the existing and future train data. Based on the indicated increase of 96% in train volumes, it was estimated that the overall sound power of the railroad would increase by 2.9 dBA. Table 3-1. Existing and Future Train Volumes on BNSF Railroad Adjacent to Project Site I Existing Daily Train I Future (2030) Daily I % Increase in Train Rail Operator/Line Volume Train Volume Volume Amtrak Pacific Surfliner 22 36 64 % Metrolink Commuter Service 0 14 . COASTER 22 40 82 % BNSF Frei11ht 6 8 33 % Total Trains 50 98 96 % The results of the analysis indicate that the future exterior CNEL is expected to comply with the City's standard of 60 dB at all but the following habitable spaces: ® Balconies of Units 5-7 and 12-16 ® Entry patios of Units 5 and 16 At the building facades, the exterior CNEL is expected to range from about 42 to 67 dB. 4 Assessment of Impact Whether or not an exterior noise impact exists at a particular unit depends, in some cases, on whether the balcony or the entry patio is defined as the required exterior living space for that unit. This is illustrated in Table 4-1. The findings provided in the table can be summarized as follows: ® The exterior CNEL standard of 60 dB will be achieved at the following units regardless of whether the balcony or entry patio is designated as the exterior living space: Units 1-4 and 8-11. Therefore, no exterior noise mitigation is required at these units. ® The exterior CNEL standard of 60 dB will be exceeded at the following units regardless of whether the balcony or entry patio is designated as the exterior living space: Units 5-7, 15, and 16. Therefore, exterior noise mitigation is required at these units. ® The exterior CNEL standard of 60 dB will be achieved at the following units if the entry patio is designated as the exterior living space rather than the balcony: Units 12-14. Therefore, exterior www.wfelandacoustics.com 5 July 2, 2014 WIELAND ACOUSTICS nolsr 6 vlbr.,,tlon consollo1nts VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL noise mitigation will only be required at these units if the balconies are designated as the exterior living spaces. Table 4-1. Assessment of Exterior Noise Impact Unit 1 Complies Complies 2 Complies Complies 3 Complies Complies 4 Complies No entry patio 5 Exceeds Exceeds 6 Exceeds No entry patio 7 Exceeds No entry patio 8 Complies No entry patio 9 Complies No entry patio 10 Complies No entry patio 11 Complies No entry patio 12 Exceeds Complies 13 Exceeds Complies 14 Exceeds Complies 15 Exceeds No entry patio 16 Exceeds Exceeds The future railroad noise exposure at the exterior facades of some of the units is estimated to be up to 67 dB CNEL. Therefore, at these units the building will need to be designed to provide an exterior- to-interior noise reduction of up to 22 dB in order to comply with the City and State interior standard of 45 dB CNEL. 5 Noise Control Requirements The following recommendations are provided for compliance with the City and State noise standards, as described in Section 2 of this report. 5.1 Exterior Noise Control E-1. A noise barrier having a minimum height of 6 feet relative to the elevation of the project site shall be constructed along the full length of the northwest, southwest, and southeast property lines. The barrier shall be constructed of concrete masonry units having a minimum surface density of 4 lbs/ft2. The barrier shall be a continuous structure, without gaps or openings. E-2. A noise barrier shall be constructed around the perimeter of the balconies of Units 6, 7, and 16. If designated an exterior living space, a noise barrier shall also be constructed around the perimeter of the balconies of Units 5, and 12-15. The following criteria shall be observed in the design and construction of the barrier: a. The minimum height of the barrier shall be 6 feet above the finished floor elevation of the balcony deck. www.wielandacoustics.com 6 July 2, 2014 VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL b. The barrier shall be constructed of material(s) with a minimum surface density of 4 lbs/ft2 • Such materials include stucco walls, tempered glass, Plexiglas, acrylic, or any combination of these materials. (It is noted that the minimum thickness required to achieve the n·ecessary 4 lbs/ft2 will vary depending on the specific material selected.) c. The barrier shall be placed around the entire exterior perimeter of the deck and shall terminate at the exterior walls of the unit. d. The barrier shall be a continuous structure, without gaps or openings, except as necessary at the base of the barrier for drainage. Drainage openings shall be kept to the minimum size possible and shall utilize a scupper, as shown in Figure 5-1. Patio/Deck Acoustical Sealant at Edge of Scupper Slope Down to Scupper ":\. Patio/Deck Construction (refer to architectural plans) . 4 4 <3 . 4 <3. 4 • A ... -~ Sound Barrier Exterior ~---Acoustical Sealant Between Sound Barrier and Scupper Scupper Height Dimension Lo be Same as Scupper Height, Minimum Acoustical Sealant Between Surface and Scupper G.I. Scupper Figure 5-1. Drainage Scupper at Balcony Barrier 5.2 Interior Noise Control 1-1. All window and door assemblies used throughout the project shall be well fitted and well weather-stripped. The perimeters of all window and door frames shall be sealed to the exterior wall construction with a weather-resistant sealant. All windows and doors on the third floor of Units 5-7 and 16 shall also be sound rated, with minimum outdoor-indoor transmission class {OITC) ratings of 25. 1-2. All front entry doors throughout the project shall be well weather-stripped solid core wood or insulated hollow metal assemblies at least 1-3/4" thick. 1-3. All exterior walls with a stucco finish on the third floor of Units 5-7 and 16 shall be constructed as follows: a. Minimum ¼" stucco exterior. www. wie Ian dacoustics. com 7 July 2, 2014 WIELAND ACOUSTICS nolst" £i vibration coniult11nt $ b. Stud space filled with minimum R-11 insulation batts. c. Minimum ¾" gypsum wallboard interior. d. All joints well fitted and/or caulked to form an airtight seal. VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL 1-4. All exterior walls with a siding finish on the third floor of Units 5-7 and 16 shall be constructed as follows: a. HardiePlank® exterior siding over minimum 6/8" stucco exterior. b. Stud space filled with minimum R-11 insulation batts. c. Minimum ¾" gypsum wallboard interior. d. All joints well fitted and/or caulked to form an airtight seal. 1-5. The interior noise standard is to be met in all homes with windows and doors closed. Therefore, ventilation is required in all homes per the Uniform Building Code and Uniform Mechanical Code standards in order to provide a habitable environment. Wall-mounted air conditioners shall not be used. 1-6. All supply and return ducts to the exterior (including, but not limited to ducts serving HVAC equipment, attic-mounted equipment, bathroom fans, and dryer exhausts), at Units 5-7 and 16 shall be oriented away from the railroad and shall incorporate at least 6' of flexible air duct with internal fiberglass lining and at least one 90° bend. For compliance with health and safety requirements, kitchen exhaust ducts should not be internally lined. 1-7. Attic vents at Units 5-7 and 16 shall be oriented away from the railroad. If such an orientation cannot be avoided, then an acoustic baffle shall be placed in the attic space behind the vent as shown in Figure 5-2. 1-8. The roof system at Units 5-7 and 16 shall have minimum ½"-thick plywood sheathing that is well sealed to form a continuous barrier to noise. Minimum R-19 unfaced fiberglass insu lation batts shall be placed on the underside of the roof sheathing. 1-9. Minimum ½"-thick gypsum board or plaster ceilings shall be provided in all rooms with an ~xterior roof at Units 5-7 and 16. At vaulted ceilings that have no attic space, two layers of minimum ¾"-thick type X gypsum board shall be used. All joints in the ceiling shall be well fitted and/or caulked to form an airtight sea l 1-10. At any penetrations of exterior walls by pipes, ducts or conduits, the space between the wall and pipes, ducts or conduits shall be caulked or filled with mortar to form an airtight seal. 1-11. Except as identified in Items 1-1 through 1-10 above, there shall be no other openings (through- the-wall or -door mailboxes, vents, etc.) in the exterior facades. www.wielandacoustics.com 8 July 2, 2014 G) @ @ © @ VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL PLYWOOD (OR EQUIVALENT) BACKING 2X4 SUPPORTS ATTACHEO TO ROOF JOIST MINIMUM 3.5" INSULA110N STAPLED TO BACKING OPENING A8V. FOR ROOF VENT INSULATION TO BE A MAX. OF 12" DOWN FROM BOTTOM Of ROOF JOIST. -----41 8" to 10" / R-11 Jn,"1,hnn Battl -Baffle Height= 48" Figure 5-1. Acoustical Baffle for Attic Vent www.wielandacoustics.com 9 July 2, 2014 WIEIAND ACOUSTICS noi'le & v1bt,H1on contull Ants 6 Conclusion VESTA PACIFIC DEVELOPMENT 2683 Roosevelt St. Project File 14.013.00 -FINAL Analysis indicates that the project site is exposed to significant levels of noise as a result of trains on the nearby BNSF railroad. However, it is concluded that with the recommendations provided herein, the project will comply with the City's exterior noise standards, and the City and State interior noise standards. The findings and recommendations provided in this report are based on the referenced plans. If these plans change in the future then it is further recommended that a qualified acoustical consultant review the final design to verify compliance with the City and State's noise standards. It is noted that, even after the implementation of the recommendations, passing trains will still be audible within the homes, particularly when they sound their horns. 7 Implementation Disclaimer Wieland Acoustics assumes no responsibility whatsoever for the implementation of the recommendations provided in this report, or for the details of construction or the final noise levels following completion of the project. We are responsible only for the accuracy of our calculations, which are based on the construction elements detailed in this report. No guarantees or assurances are given or implied. 8 References l. PRE 13-37-2683 Roosevelt, AP_N: 203-101-02, -05. City of Carlsbad Community & Economic Development Department. November 13, 2013. 2. City of Carlsbad, Noise Guidelines Manual. City of Carlsbad/Nolte and Associates, Inc. September 1995. 3. Map 3, Noise Element of the General Plan -noise contours for McClellan Palomar Airport. City of Carlsbad. Undated. 4. Carlsbad Village -architectural plans. Sheets A-2 through A-10. The McKinley Associates, Inc. May 5, 2014. 5. Tentative Map, 2685 & 2687 Roosevelt Street, Carlsbad CA, 92008. Pasco Laret Sutter & Associates. April 24, 2014. 6. Grading Plan. Pasco Laret Sutter & Associates. April 24, 2014. 7. LOSSAN Corridorwide Strategic Implementation Plan, Final Report. HNTB. April 2012. 8. Asiessment of Noise Environments Around Railroad Operations. Wyle Laboratories Report WCR 73-5. July 1973. www.wielandacoustics.com 10 July 2, 2014 APPENDIX I Noise Measurements Table 1-1. Measured Community Noise Equivalent Level, CNEL Project: Location: Date: 2683 Roosevelt Street At rear of property June 3-4, 2014 Hourly Noise Measurement Period Level, dB(A) 12:00 am -1 :00 am 56.2 1 :00 am -2:00 am 43.4 2:00 am -3:00 am 40.9 3:00 am -4:00 am 42.0 4:00 am -5:00 am 47.4 5:00 am -6:00 am 50.1 6:00 am -7:00 am 54.0 7:00 am -8:00 am 54.2 8:00 am -9:00 am 59.0 9:00 am -10:00 am 57.0 10:00 am -11:00 am 61.6 11:00 am -12:00 pm 61.3 70 60 ~ 50 a:, "CJ .; 40 > 41 -1-I--+--V"' \ l-1 ~ v- \ .,./ v~ -..J 41 "' ·5 30 z >-.::: :, 0 :I: 20 -·--- 10 --·-""" 0 WIELAND ACOUSTICS, INC. Measurement Period 12:00 pm -1:00 pm 1 :00 pm -2:00 pm 2:00 pm -3:00 pm 3:00 pm -4:00 pm 4:00 pm -5:00 pm 5:00 pm -6:00 pm 6:00 pm -7:00 pm 7:00 pm -8:00 pm 8:00 pm -9:00 pm 9:00 pm -10:00 pm 10:00 pm -11:00 pm 11:00 pm -12:00 am CNEL: IL": I ~ .... A e-,..~ r--,," ~LJ ,, r-,., '\ l\/ - Time of Day Hourly Noise Level, dB(A) 58.7 62.9 55.5 54.7 60.9 57.2 61 .8 56.8 49.9 56.0 57.9 49.7 61.0 r"\ V \. -- APPENDIX II Exterior Noise Analysis Figure 1/-1 . Est imated Railroad Noise Exposure at 1st Floor Locations, Unmitigated CNEL, dB .,, :,:, 90 95 85 90 80 85 75 80 70 75 65 70 60 65 <= 60 Signs and symbols [Zj Building -Balcony -Property Line t o w ~ ro Calculation Date: June 6, 2014 feet ~ WIELAND ACOUSTICS noise a vlbratfon consultants Figure 11-2. Estimated Railroad Noise Exposure at 2nd Floor Locations, Unmitigated CNEL, dB ,. ::,:, 90 95 85 -90 80 -85 75 -80 70 -75 65 70 60 65 <= 60 Signs and symbols [Z] Building -Balcony -Property Line t 0 W ~ W Calculation Date: June 6, 2014 feet 0 WIELAND ACOUSTICS noise & vibruton coniultanti Figure 1/-3. Estimated Railroad Noise Exposure at 3rd Floor Locations, Unmitigated CNEL, dB ,,. :,::, 90 95 85 -90 80 -85 75 -80 70 -75 65 -70 60 -65 <= 60 Signs and symbols [Z) Building -Balcony -Property Line t 20 40 Calculation Date: June 6, 2014 60 feet 0 WIELAND ACOUSTICS noise &. vlbution consultants APPENDIX Ill Interior Noise Analysis Table 11/-1 . Calculation of Interior Noise Levels • I Client: Case: Vesta Pacific Development Unit 5, Master Bedroom NOISE SOURCE: Source# Source Name 3 Train SOUND ABSORPTION: Type I Area I Material 19 187 Marble or Glazed Tile 17 437 112·· Gypsum Board, Painted 17 187 112·· Gypsum Board, Painted I 16 55 24 oz. Glass Operable Windows (C PARTITION ELEMENTS: Side Front Element Type Area Type Wall 1 104 1 Windows Openable 42 22 42 Fixed Doors Entry Sliding Glass French Wall A/C ~iscellaneous EXTERIOR LEVEL: II Side Front CNEL 67.0 63.0 INTERIOR LEVEL: Type 35 Area 110 33 Partition #1 Partition #2 CNEL 41.0 38.5 Partition Elements are: Partition #1 Partition #2 Element OITC OITC Wall 37 37 Openable Window 25 25 Fixed Window Entry Door Sliding Glass Dr. French Door Wall A/C Miscellaneous I Area I 75 Type Project No. Date: Material Padded Furniture Area i Partition #3 0.0 Partition #3 OITC 14.013.00 June 6, 2014 I Sum 42.9 • Analysis based on FHWA-EWR method per E966-99, Section 9.72, with 3 dB correction for room center. Table 111-2. Calculation of Interior Noise Levels~ Client: Vesta Pacific Development Case: Units 5 ft 16, Master Bedroom Landing NOISE SOURCE: Source# !source Name 3 !Train SOUND ABSORPTION: I Type I Area I Material I Type 19 101 Marble or Glazed Tile 35 17 340 1 /2" Gypsum Board, Painted 17 101 1 /2" Gypsum Board, Painted 16 42 24 oz. Glass Operable Windows (C PARTITION ELEMENTS: Front Element Type Area Type Area Wall 1 23 Windows Openable Fixed Doors Entry Sliding Glass French 30 42 Wall A/C !Miscellaneous EXTERIOR LEVEL: Front CNEL 63.0 INTERIOR LEVEL: Partition #1 Partition #2 CNEL 40.9 0.0 Partition Elements are: Partition #1 Partition #2 Element OITC OITC Wall 37 Openable Window Fixed Window Entry Door Sliding Glass Dr. French Door 25 Wall A/C Miscellaneous I Area I 40 Ty,..~. Project No. Date: Material Padded Furniture . II ,. ·-" Partition #3 0.0 Partition #3 OITC 14.013.00 June 6, 2014 I Sum 40.9 • Analysis based on FHWA-EWR method per E966-99, Section 9. 72, with 3 dB correction for room center. Table 111-3. Calculation of Interior Noise Levels . Client: Case: Vesta Pacific Development Unit 7, Master Bedroom NOISE SOURCE: Source# Source Name 3 Train SOUND ABSORPTION: Type Area Material 19 178 Marble or Glazed Tile 17 425 1 /2" Gypsum Board, Painted 17 178 1 /2" Gypsum Board, Painted 16 55 24 oz. Glass Operable Windows (( PARTff/ON ELEMENTS: Side Front Element Type Area Type Wall 1 106 1 Windows Openable 42 33 42 Fixed Doors Entry Sliding Glass French· Wall A/C Miscellaneous EXTERIOR LEVEL: Rear Side CNEL 67.0 65.0 INTERIOR LEVEL: Type 35 Area 102 22 Partition #1 Partition #2 CNEL 42.6 39.2 Partition Elements are: Partition #1 Partition #2 Element OITC OITC Wall 37 37 Openable Window 25 25 Fixed Window Entry Door Sliding Glass Dr. French Ooor Wall A/C Miscellaneous Area 71 Type Project No. Date: Material Padded Furniture Area Partition #3 0.0 Partition #3 OITC 14.013.00 June 6, 2014 Sum 44.2 • Analysis based on FHWA•EWR method per E966·99, Section 9. 72, with 3 dB correction for room center. Table 11/-4. Calculation of Interior Noise Levels · Client: Case: Vesta Pacific Development Unit 16, Master Bedroom NOISE SOURCE: Source# !source Name 3 !Train SOUND ABSORPTION: Type Area Material 19 187 Marble or Glazed Tile Type 35 17 437 1 /2" Gypsum Board, Painted 17 187 1 /2" Gypsum Board, Painted 16 55 24 oz. Glass Operable Windows (( PARTITION ELEMENTS: Side Front Element Type Area Type Area Wall 1 104 1 110 Windows Openable 42 22 42 33 Fixed Doors Entry Sliding Glass French WallA/C Miscellaneous EXTERIOR LEVEL: 11 Side Front CNEL 67.0 66.0 INTERIOR LEVEL: Partition #1 Partition #2 CNEL 41.0 41.5 Partition Elements are: Partition #1 Partition #2 Element OITC OITC Wall 37 37 Openable Window 25 25 Fixed Window Entry Door Sliding Glass Dr. French Door Wall A/C Miscellaneous Area 75 Type Project No. Date: Material Padded Furniture Area II Partition #3 0.0 Partition #3 OITC 14.013.00 June 6, 2014 Sum 44.3 • Analysis based on FHWA-EWR method per E966-99, Section 9.72, with 3 dB correction for room center. Table 111-5. Calculation of Interior Noise Levels· Client: Vesta Pacific Development Case: Unit 16, Master Bedroom Landing NOISE SOURCE: Source# !source Name 3 !Train SOUND ABSORPTION: I Type I Area I Material I Type 19 101 Marble or Glazed Tile 35 17 340 1 /2'" Gypsum Board, Painted 17 101 1 /2" Gypsum Board, Painted 16 42 24 oz. Glass Operable Windows (( PARTITION ELEMENTS: Front Element Type Area Type Area Wall 1 23 Windows Openable Fixed Doors Entry Sliding Glass French 30 42 Wall A/C Miscellaneous EXTERIOR LEVEL: II Front CNEL 66.0 INTERIOR LEVEL: Partition #1 Partition #2 -CNEL· 43.9 0.0 Partition Elements are: lbment Partition #1 Partition #2 OITC OITC IWall 37 Openable Window Fixed Window Entry Door Sliding Glass Dr. French Door 25 Wall A/C Miscellaneous I I I Area I 40 Type Project No. Date: Material Padded Furniture Area Partition #3 0.0 Partition #3 OITC 14.013.00 June 6, 2014 I Sum 43.9 • Analysis based on FHWA-EWR method per E966-99, Section 9.72, with 3 dB correction for room center.