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HomeMy WebLinkAboutSDP 2023-0014; CARLSBAD VILLAGE MIXED-USE - SB 330; NOISE STUDY - DECEMBER 2023; 2023-12-01 Noise Technical Report Carlsbad Village Drive Mixed Use Project DECEMBER 2023 Prepared for: GRT Carlsbad Village, LLC c/o Tooley Interests, LLC 2001 Wilshire Blvd Suite 420 Santa Monica, CA 90403 Prepared by: 605 Third Street Encinitas, California 92024 Contact: Mark Storm, INCE Bd. Cert. Printed on 30% post-consumer recycled material. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 i DECEMBER 2023 Table of Contents SECTION PAGE NO. Acronyms and Abbreviations ............................................................................................................................................ iii 1 Introduction .......................................................................................................................................................... 1 1.1 Report Purpose and Scope .................................................................................................................... 1 1.2 Regional and Local Setting .................................................................................................................... 1 1.3 Project Description ................................................................................................................................. 1 1.4 Fundamentals of Noise and Vibration ................................................................................................... 1 1.4.1 Sound, Noise, and Acoustics .................................................................................................... 1 1.4.2 Sound Pressure Levels and Decibels ...................................................................................... 2 1.4.3 A-Weighted Sound Level ........................................................................................................... 7 1.4.4 Human Response to Changes in Noise Levels ....................................................................... 8 1.4.5 Noise Descriptors...................................................................................................................... 8 1.4.6 Sound Propagation ................................................................................................................... 8 2 Regulatory Setting ............................................................................................................................................. 10 2.1 Federal ................................................................................................................................................. 10 2.2 State ..................................................................................................................................................... 10 2.3 Local ..................................................................................................................................................... 10 2.3.1 Noise Ordinance .................................................................................................................... 10 2.3.2 General Plan Noise Element ................................................................................................. 10 3 Existing Conditions ............................................................................................................................................ 12 4 Thresholds of Significance ............................................................................................................................... 15 5 Impact Discussion ............................................................................................................................................. 16 5.1 Project Impact Assessment ................................................................................................................ 16 5.2 Cumulative Impact Assessment ......................................................................................................... 20 6 Summary of Findings ........................................................................................................................................ 24 7 References Cited ............................................................................................................................................... 26 TABLES Table 1. Typical Sound Levels in the Environment and Industry .................................................................................... 7 Table 2. Performance Standards for Non-Transportation Sources ............................................................................. 11 Table 3. Measured Baseline Outdoor Ambient Noise Levels ....................................................................................... 12 Table 4. Typical Construction Equipment Maximum Noise Levels .............................................................................. 16 Table 5. Estimated Distances between Construction Activities and the Nearest Noise-sensitive Receptors .......... 17 CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 ii DECEMBER 2023 Table 6. Predicted Construction Noise at Indicated Receptors per Activity Phase .................................................... 18 Table 7. Predicted Project Rooftop HVAC Noise Levels ................................................................................................ 19 FIGURES Figure 1 Project Location ...................................................................................................................................... 3 Figure 2 Site Plan .................................................................................................................................................. 5 Figure 3 Noise Measurement Locations ........................................................................................................... 13 APPENDICES A Baseline Noise Measurement Field Data B Construction Noise Modeling Input and Output C Traffic Noise Modeling Input and Output D Project HVAC Noise Prediction CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 iii DECEMBER 2023 Acronyms and Abbreviations Acronym/Abbreviation Definition Caltrans California Department of Transportation CEQA California Environmental Quality Act City City of Carlsbad CNEL Community Noise Equivalent Level dB decibel dBA A-weighted decibel FTA Federal Transit Administration Ldn day–night average noise level Leq equivalent noise level Lmax maximum sound level Lmin minimum sound level Carlsbad Village Mixed Use proposed project RCNM Roadway Construction Noise Model SF square feet SLM sound level meter SPL sound pressure level ST short-term VLI very low income CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 iv DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 1 DECEMBER 2023 1 Introduction 1.1 Report Purpose and Scope This technical noise report evaluates the potential noise impacts during construction and operation of the proposed Carlsbad Village Drive Mixed Use project (proposed project). This assessment utilizes the significance thresholds in Appendix G of the California Environmental Quality Act Guidelines (14 CCR 15000 et seq.) adopted January 2019. 1.2 Regional and Local Setting The project site is located in the City of Carlsbad (City), south of Carlsbad Village Drive and west of Interstate 5 (San Diego Freeway). The project site is bound by Carlsbad Village Drive to the north, Interstate 5 (San Diego Freeway) to the east, commercial residential development to the west, and Oak Avenue to the south (Figure 1, Project Location). The land is currently occupied by approximately 58,750 square feet (SF) of commercial businesses. The Project site includes Assessor’s Parcel Numbers designated as Village (V) in the City’s General Plan and zoned Village-Barrio (V-B) (APNs 203-320-53-00, 203-320-55-00, and 203-320-56-00). 1.3 Project Description The Project proposes to develop a mixed-use development consisting of 218 multi-family units, as well as 13,800 square feet of commercial space, including parking and open space. The proposed commercial uses would be contained in two, one-story buildings along Carlsbad Village Drive, and the residential units would be provided in two five-story buildings. 340 vehicular parking spaces will be provided at grade surround the commercial and residential buildings and within an above-grade parking structure. The existing Project site is fully paved and developed with commercial buildings that would be demolished during Project construction. 1.4 Fundamentals of Noise The following is a brief discussion of fundamental noise concepts and terminology. 1.4.1 Sound, Noise, and Acoustics Sound is actually a process that consists of three components: the sound source, sound path, and sound receiver. All three components must be present for sound to exist. Without a source to produce sound, there is no sound. Similarly, without a medium to transmit sound pressure waves, there is no sound. Finally, sound must be received; a hearing organ, sensor, or object must be present to perceive, register, or be affected by sound or noise. In most situations, there are many different sound sources, paths, and receptors rather than just one of each. Acoustics is the field of science that deals with the production, propagation, reception, effects, and control of sound. Noise is defined as sound that is loud, unpleasant, unexpected, or undesired. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 2 DECEMBER 2023 1.4.2 Sound Pressure Levels and Decibels The amplitude of a sound determines its loudness. Loudness of sound increases with increasing amplitude. Sound pressure amplitude is measured in units of micronewton per square meter, also called micropascal. One micropascal is approximately one-hundred billionth (0.00000000001) of normal atmospheric pressure. The pressure of a very loud sound may be 200 million micropascals, or 10 million times the pressure of the weakest audible sound. Because expressing sound levels in terms of micropascal would be very cumbersome, sound pressure level in logarithmic units is used instead to describe the ratio of actual sound pressure to a reference pressure squared. These units are called Bels. To provide a finer resolution, a Bel is subdivided into 10 decibels (dB). Da t e : 1 1 / 2 1 / 2 0 2 2 - L a s t s a v e d b y : o c h o w - P a t h : Z : \ P r o j e c t s \ j 1 4 8 1 4 0 1 \ M A P D O C \ D O C U M E N T \ B E \ F i g u r e 1 _ P r o j e c t L o c a t i o n . m x d Project Location Tooley Carlsbad SOURCE: USGS 7.5-Minute Series San Luis Rey QuadrangleTownsip: 12S; Range: 4W; Section: 6 0 2,6001,300 Feetn Project Boundary FIGURE 1 !^Carlsbad Chula Vista Coronado DanaPoint El Cajon Encinitas Escondido ImperialBeach Irvine LaMesa LaQuintaMenifee Murrieta Oceanside Palm Springs Poway San Clemente San Diego SanJuanCapistrano San Marcos Santee SolanaBeach Temecula Vista Wildomar R i v e r s i d eC o u n t y ÄÆ905 ÄÆ52 ÄÆ54 ÄÆ94 ÄÆ163 ÄÆ241 ÄÆ125 ÄÆ98 ÄÆ73 ÄÆ195 ÄÆ56 ÄÆ78 ÄÆ86 ÄÆ111ÄÆ74 ÄÆ67 ÄÆ74 ÄÆ76 ÄÆ79 §¨¦805 §¨¦215 §¨¦15 §¨¦8Project Site S A N D I E G O C O U N T Y 0 500250Meters CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 4 DECEMBER 2023 INTENTIONALLY LEFT BLANK 0 144 288 432 576 720 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2448 2592 2736 2880 3024 3168 3312 3456 3600 3744 3888 4032 4176 4320 4464 4608 4752 4896 5040 5184 5328 5472 5616 5760 5904 6048 6192 6336 6480 6624 6768 6912 7056 7200 7344 7488 7632 7776 7920 8064 8208 8352 8496 8640 8784 8928 9072 9216 9360 9504 9648 9792 9936 100 8 0 102 2 4 103 6 8 105 1 2 106 5 6 108 0 0 109 4 4 110 8 8 112 3 2 113 7 6 115 2 0 116 6 4 118 0 8 119 5 2 120 9 6 122 4 0 123 8 4 125 2 8 126 7 2 128 1 6 129 6 0 131 0 4 132 4 8 133 9 2 135 3 6 136 8 0 138 2 4 139 6 8 141 1 2 142 5 6 144 0 0 145 4 4 146 8 8 148 3 2 149 7 6 151 2 0 152 6 4 154 0 8 155 5 2 156 9 6 158 4 0 159 8 4 161 2 8 162 7 2 164 1 6 165 6 0 167 0 4 168 4 8 169 9 2 171 3 6 172 8 0 174 2 4 175 6 8 177 1 2 178 5 6 180 0 0 181 4 4 182 8 8 184 3 2 185 7 6 187 2 0 188 6 4 190 0 8 191 5 2 192 9 6 194 4 0 195 8 4 197 2 8 198 7 2 200 1 6 201 6 0 203 0 4 204 4 8 205 9 2 207 3 6 208 8 0 210 2 4 211 6 8 213 1 2 214 5 6 216 0 0 217 4 4 218 8 8 220 3 2 221 7 6 223 2 0 224 6 4 226 0 8 227 5 2 228 9 6 230 4 0 231 8 4 233 2 8 234 7 2 236 1 6 237 6 0 239 0 4 240 4 8 241 9 2 243 3 6 244 8 0 246 2 4 247 6 8 249 1 2 250 5 6 252 0 0 253 4 4 254 8 8 256 3 2 257 7 6 259 2 0 260 6 4 262 0 8 263 5 2 264 9 6 266 4 0 267 8 4 269 2 8 270 7 2 272 1 6 273 6 0 275 0 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 SOURCE:Tooley 2023 Carlsbad Village Mixed Use Project (Dudek No. 14814) FIGURE 2 Project Site Plan CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 6 DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 7 DECEMBER 2023 1.4.3 A-Weighted Sound Level Sound pressure level alone is not a reliable indicator of loudness. The frequency, or pitch, of a sound also has a substantial effect on how humans will respond. Although the intensity (energy per unit area) of the sound is a purely physical quantity, the loudness, or human response, is determined by the characteristics of the human ear. Human hearing is limited not only in the range of audible frequencies, but also in the way it perceives the sound in that range. In general, the healthy human ear is most sensitive to sounds between 1,000 and 5,000 hertz, and it perceives a sound within that range as more intense than a sound of higher or lower frequency with the same magnitude. To approximate the frequency response of the human ear, a series of sound level adjustments is usually applied to the sound measured by a sound level meter. The adjustments (referred to as a weighting network) are frequency dependent. The A-scale weighting network approximates the frequency response of the average healthy young ear when listening to ordinary sounds. When people make judgments about the relative loudness or annoyance of a sound, their judgments correlate well with the A-scale sound levels of those sounds. Other weighting networks have been devised to address high noise levels or other special situations (e.g., B-scale, C-scale, D-scale), but these scales are rarely used in conjunction with most environmental noise. Noise levels are typically reported in terms of A-weighted sound levels. All sound levels discussed in this report are A-weighted decibels (dBA). Examples of typical noise levels for common indoor and outdoor activities are depicted in Table 1. Table 1. Typical Sound Levels in the Environment and Industry Common Outdoor Activities Noise Level (dB) Common Indoor Activities — 110 Rock band Jet fly over at 300 meters (1,000 feet) 100 — Gas lawn mower at 1 meter (3 feet) 90 — Diesel truck at 15 meters (50 feet), at 80 kilometers per hour (50 miles per hour) 80 Food blender at 1 meter (3 feet); garbage disposal at 1 meter (3 feet) Noisy urban area, daytime; gas lawn mower at 30 meters (100 feet) 70 Vacuum cleaner at 3 meters (10 feet) Commercial area; heavy traffic at 90 meters (300 feet) 60 Normal speech at 1 meter (3 feet) Quiet urban, daytime 50 Large business office; dishwasher next room Quiet urban, nighttime 40 Theater; large conference room (background) Quiet suburban, nighttime 30 Library Quiet rural, nighttime 20 Bedroom at night; concert hall (background) — 10 Broadcast/Recording studio Lowest threshold of human hearing 0 Lowest threshold of human hearing Source: Caltrans 2013. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 8 DECEMBER 2023 1.4.4 Human Response to Changes in Noise Levels Under controlled conditions in an acoustics laboratory, the trained, healthy human ear is able to discern changes in sound levels of 1 dBA when exposed to steady, single-frequency signals in the mid-frequency range. Outside such controlled conditions, it is widely accepted that the average healthy ear can barely perceive noise level changes of 3 dBA. A change of 5 dBA is readily perceptible, and a change of 10 dBA is perceived as twice (if a gain) or half (if a loss) as loud. A doubling of sound energy results in a 3-dBA increase in sound, which means that a doubling of sound energy (e.g., doubling the volume of traffic on a road) would result in a barely perceptible change in sound level. 1.4.5 Noise Descriptors Units of measure and standardized descriptors have been developed to quantify and evaluate characteristics of sound. For instance, the energy-equivalent sound level (Leq) is the equivalent steady-state or constant sound level that in a stated period of time would contain the same acoustical energy as the actual time-varying sound level during the same time period. For instance, the 1-hour A-weighted equivalent sound level, Leq(h), is the energy average decibel value of A-weighted sound occurring during a 1-hour period, and represents one of the City’s performance- based noise level standards. People are generally more sensitive to and thus potentially more annoyed by noise occurring during the evening and nighttime hours. Hence, another noise descriptor used in community noise assessments—the community noise equivalent level (CNEL)—represents a time-weighted, 24-hour average noise level based on the A-weighted sound level. However, unlike an unmodified 24-hour Leq value, the CNEL descriptor accounts for increased noise sensitivity during the evening (7 p.m. to 10 p.m.) and nighttime (10 p.m. to 7 a.m.) by adding 5 dBA and 10 dBA, respectively, to the average sound levels occurring during these defined hours within a 24-hour period. 1.4.6 Sound Propagation Sound propagation (i.e., the traverse of sound from a noise emission source position to a receiver location) is influenced by multiple factors that include geometric spreading, ground absorption, atmospheric effects, and occlusion by natural terrain and/or features of the built environment. Sound levels attenuate (or diminish) geometrically at a rate of approximately 6 dBA per doubling of distance from an outdoor point-type source due to the spherical spreading of sound energy with increasing distance travelled. The effects of atmospheric conditions such as humidity, temperature, and wind gradients are typically distance- dependent and can also temporarily either increase or decrease sound levels measured or perceived at a receptor location. In general, the greater the distance the receiver is from the source of sound emission, the greater the potential for variation in sound levels at the receptor due to these atmospheric effects. Additional attenuation can result from sound path occlusion and diffraction due to intervention of natural (ridgelines, dense forests, etc.) and built features (such as solid walls, buildings and other structures). CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 9 DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 10 DECEMBER 2023 2 Regulatory Setting 2.1 Federal In its Transit Noise and Vibration Impact Assessment guidance manual, the Federal Transit Administration (FTA) recommends a daytime construction noise level threshold of 80 dBA Leq over an 8-hour period (FTA 2018) when detailed construction noise assessments are performed to evaluate potential impacts to community residences surrounding a project. Although this FTA guidance is not a regulation, it can serve as a quantified standard in the absence of such noise limits at the state and local jurisdictional levels. 2.2 State In its assessment of applicant-proposed energy projects under its jurisdiction, and with respect to impact significance for durable increases in outdoor ambient sound level per CEQA, California Energy Commission (CEC) technical staff has often concluded that it is “reasonable to assume that an increase in background noise levels up to 5 dBA in a residential setting is insignificant; an increase of more than 10 dBA is considered significant. An increase between 5 and 10 dBA should be considered adverse, but may be either significant or insignificant, depending on the particular circumstances of the case” (CEC 2010). In this context, the CEC defines “background” sound with an L90 statistical sound level descriptor, which is the sound level exceeded for a cumulative ninety percent (90%) of the time during a measurement period. Regarding noise from construction activities, the CEC usually considers a project’s impact less than significant with respect to CEQA compliance if it is temporary, limited to daytime hours, and industry-standard noise abatement measures are implemented for noise producing equipment. 2.3 Local 2.3.1 Noise Ordinance The City’s noise control ordinance (Municipal Code, Chapter 8.48) outlines regulations for limitation of hours for construction (i.e., the erection, demolition, alteration, or repair of any building or structure or the grading or excavation of land) that creates disturbing, excessive, or offensive noise. Construction can occur Monday through Friday from 7 a.m. to 6 p.m., and Saturday 8 a.m. to 6 p.m.; no work can be conducted on Sundays or on federal holidays. Carlsbad Municipal Code Chapter 8.48 also outlines exceptions that may be granted by the City for circumstances such as emergency repairs required to protect the health and safety of the community. 2.3.2 General Plan Noise Element The Noise Element of the City’s General Plan (City of Carlsbad 2015a) includes performance standards for noise that are applicable to the proposed project. Table 2 (reproduced from City of Carlsbad 2015, Table 5-3) provides City standards for noise from non-transportation noise sources, including on-site stationary equipment and machinery such as heating, ventilation, and air conditioning (HVAC) equipment. These standards apply to the noise CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 11 DECEMBER 2023 sources themselves, as measured at the edge of the property line; noise caused by motor vehicles traveling to and from the site is exempt from this standard. Table 2. Performance Standards for Non-Transportation Sources Noise Level Descriptor Daytime (7 A.M. to 10 P.M.) Nighttime (10 P.M. to 7 A.M.) Hourly Leq, dB 55 45 Maximum Level, dB 75 65 Source: City of Carlsbad 2015, Table 5-3. Note: Each of the noise levels specified above shall be lowered by 5 dB for simple tone noises, noises consisting primarily of speech or music, or for recurring impulsive noises. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 12 DECEMBER 2023 3 Existing Conditions Sound pressure level (SPL) measurements were conducted near the project site on October 19, 2022, to quantify and characterize the existing outdoor ambient noise levels. Table 3 provides the location and time at which these baseline noise level measurements were taken. The SPL measurements were performed by an attending Dudek field investigator using a Rion NL-52 sound level meter (SLM) equipped with a 0.5-inch, pre-polarized condenser microphone with pre-amplifier. This SLM meets the current American National Standards Institute (ANSI) standard for a Type 1 (Precision Grade) instrument. The accuracy of the SLM was verified using a reference sound signal (i.e., field calibrator) before and after the measurements, and the measurements were conducted with the microphone positioned approximately 5 feet above the ground. Four (4) short-term noise level measurement locations (ST1–ST4) are depicted on Figure 3, Noise Measurement and Modeling Locations. Two of these SPL survey positions, ST1 and ST3, represent existing offsite noise-sensitive receptors (NSR): 985 Oak Avenue (single-family home) and 965 Oak Avenue (Windsor Pointe Apartments); and The Lofts (multi-family residences). The Leq and Lmax noise levels are provided in Table 3, along with noted perceived sound sources that included traffic from adjacent roadways and the Interstate-5 (I-5) freeway, and birdsong. As shown in Table 3, the measured sound levels ranged from approximately 58.4 dBA Leq at ST4 to 67.6 dBA Leq at ST3. Noise measurement data is also included in Appendix A, Baseline Noise Measurement Field Data. Given the proximity of the Project site and these measurement survey positions to the I-5 freeway, the dominant noise source in the outdoor environment, these samples of daytime measured Leq can be interpreted as approximations of CNEL, since evening SPL would likely be 5 dBA less, and nighttime SPL would be 10 dBA less than the daytime values according to FTA outdoor ambient noise estimation techniques (FTA 2018). Table 3. Measured Baseline Outdoor Ambient Noise Levels Site Location/Address (and noise-sensitive receptor) Perceived/Observed Sound Sources Date/Time Leq (dBA) Lmax (dBA) ST1 985 Oak Avenue (single-family residence) 965 Oak Avenue (Windsor Pointe [multi-family residences]) Local roadway traffic, I-5 freeway traffic dominant 2022-10-19, 10:00 AM to 10:15 AM 67.1 70.4 ST2 3044 Harding Street, 3 feet from edge of pavement Local roadway traffic, birds, I-5 freeway traffic 2022-10-19, 11:00 AM to 11:15 AM 62.7 70.4 ST3 1006 Carlsbad Village Drive, 20 feet from edge of pavement (multi-family residence) Local roadway traffic, I-5 freeway traffic, train horn 2022-10-19, 09:30 AM to 09:45 AM 67.6 75.5 ST4 958 Oak Avenue Local roadway traffic, I-5 freeway noise dominant, air-conditioning (AC) unit. 2022-10-19, 10:35 AM to 10:50 AM 58.4 60.7 Source: Appendix A. Notes: Leq = equivalent continuous sound level (time-averaged sound level); Lmax = maximum sound level during the measurement interval; dBA = A-weighted decibels; ST = short-term noise measurement locations. 0 144 288 432 576 720 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2448 2592 2736 2880 3024 3168 3312 3456 3600 3744 3888 4032 4176 4320 4464 4608 4752 4896 5040 5184 5328 5472 5616 5760 5904 6048 6192 6336 6480 6624 6768 6912 7056 7200 7344 7488 7632 7776 7920 8064 8208 8352 8496 8640 8784 8928 9072 9216 9360 9504 9648 9792 9936 100 8 0 102 2 4 103 6 8 105 1 2 106 5 6 108 0 0 109 4 4 110 8 8 112 3 2 113 7 6 115 2 0 116 6 4 118 0 8 119 5 2 120 9 6 122 4 0 123 8 4 125 2 8 126 7 2 128 1 6 129 6 0 131 0 4 132 4 8 133 9 2 135 3 6 136 8 0 138 2 4 139 6 8 141 1 2 142 5 6 144 0 0 145 4 4 146 8 8 148 3 2 149 7 6 151 2 0 152 6 4 154 0 8 155 5 2 156 9 6 158 4 0 159 8 4 161 2 8 162 7 2 164 1 6 165 6 0 167 0 4 168 4 8 169 9 2 171 3 6 172 8 0 174 2 4 175 6 8 177 1 2 178 5 6 180 0 0 181 4 4 182 8 8 184 3 2 185 7 6 187 2 0 188 6 4 190 0 8 191 5 2 192 9 6 194 4 0 195 8 4 197 2 8 198 7 2 200 1 6 201 6 0 203 0 4 204 4 8 205 9 2 207 3 6 208 8 0 210 2 4 211 6 8 213 1 2 214 5 6 216 0 0 217 4 4 218 8 8 220 3 2 221 7 6 223 2 0 224 6 4 226 0 8 227 5 2 228 9 6 230 4 0 231 8 4 233 2 8 234 7 2 236 1 6 237 6 0 239 0 4 240 4 8 241 9 2 243 3 6 244 8 0 246 2 4 247 6 8 249 1 2 250 5 6 252 0 0 253 4 4 254 8 8 256 3 2 257 7 6 259 2 0 260 6 4 262 0 8 263 5 2 264 9 6 266 4 0 267 8 4 269 2 8 270 7 2 272 1 6 273 6 0 275 0 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 SOURCES: Google 2021; Dudek 2022 Carlsbad Village Mixed Use Project (Dudek No. 14814) FIGURE 3 0 81.5 163 Feet Noise Measurement Locations and Nearest Noise-Sensitive Receptors Project Boundary 985 Oak Avenue 965 Oak Avenue (Windsor Pointe) 1006 Carlsbad Village Drive CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 14 DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 15 DECEMBER 2023 4 Thresholds of Significance The following significance criteria are based on Appendix G of the California Environmental Quality Act Guidelines (14 CCR 15000 et seq.) and will be used to determine the significance of potential noise impacts. Impacts associated with noise would be significant if the proposed project would result in:  Generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies.  Expose people residing or working in the project area to excessive noise levels (for a project located within the vicinity of a private airstrip or an airport land use plan, or where such a plan has not been adopted, within 2 miles of a public airport or public use airport). In light of these above significance criteria, this analysis uses the following standards to evaluate potential noise impacts.  Construction noise – although neither the City’s Municipal Code or its Noise Guidelines offer a quantitative decibel limit for construction noise, within allowable construction hours per the City of Carlsbad General Plan Noise Element (City of Carlsbad 2015), an informational-based threshold is utilized herein to evaluate a potential construction noise impact at an NSR (i.e., residential land use): o Relative threshold – up to a 10 dB increase over existing ambient sound level, akin to CEC assessment of potentially significant impact for long-duration changes to the outdoor sound environment. Because the Project site is already characterized by existing outdoor ambient levels ranging from 67 to 68 dBA Leq per samples at ST1 and ST3, respectively, as appearing in Table 3, this means that construction noise would be considered a significant impact if greater than the position-dependent existing sound level by more than 10 dB. In other words, based on these measured outdoor ambient Leq samples at ST1 and ST3 in Table 3, the allowable construction noise levels would be 77 to 78 dBA hourly Leq values. For context, these construction noise magnitudes are slightly less than the 80 dBA noise threshold that FTA guidance recommends at the exterior of a receiving residence.  Offsite traffic noise – the project would generate vehicle trips, thereby having the potential to increase traffic on local roadways. Such a change attributed to the project resulting in more than a 3 dB increase would be considered perceptible and thus a significant impact.  Project operations (onsite stationary sources) – 55 dBA hourly Leq during daytime hours and 45 dBA hourly Leq during nighttime hours. Maximum sound levels (Lmax) are 20 dB higher than these limits. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 16 DECEMBER 2023 5 Impact Discussion 5.1 Project Impact Assessment Potential noise impacts attributed to project construction and operation are studied in the following subsections that are categorized by the CEQA Guidelines Appendix G significance for noise. a) Would the project result in generation of a substantial temporary or permanent increase in ambient noise levels in the vicinity of the project in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? Short-Term Construction Construction noise is a temporary phenomenon, with emission levels varying from hour to hour and day to day, depending on the equipment in use, the operations performed, and the distance between the source and receptor. Equipment that would be in use during construction would include, in part, graders, backhoes, rubber-tired dozers, loaders, cranes, forklifts, pavers, rollers, and air compressors. The typical maximum noise levels at a distance of 50 feet from various pieces of construction equipment and activities anticipated for use on the proposed project site are presented in Table 4. Note that the equipment noise levels presented in Table 4 are maximum noise levels. Usually, construction equipment operates in alternating cycles of full power and low power, producing average noise levels over time that are less than the maximum noise level. The average sound level of construction activity also depends on the amount of time that the equipment operates and the intensity of construction activities during that time. Table 4. Typical Construction Equipment Maximum Noise Levels Equipment Type Typical Equipment (Lmax, dBA at 50 Feet) All Other Equipment > 5 HP 85 Backhoe 78 Compressor (air) 78 Concrete Saw 90 Crane 81 Dozer 82 Excavator 81 Flat Bed Truck 74 Front End Loader 79 Generator 72 Grader 85 Man Lift 75 Paver 77 Roller 80 Scraper 84 Welder / Torch 73 Source: DOT 2006. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 17 DECEMBER 2023 Note: Lmax = maximum sound level; dBA = A-weighted decibels. Aggregate noise emission from proposed project construction activities, broken down by sequential phase, was predicted from the geographic center of the construction site, which serves as the time-averaged location or geographic acoustical centroid of active construction equipment for the phase under study. The centroid-to-receptor distance is used in a manner similar to the general assessment technique as described in the FTA guidance for construction noise assessment, when the location of individual equipment for a given construction phase is uncertain over some extent of (or the entirety of) the construction site area. In this studied scenario, because of the equipment location uncertainty, all the equipment for a construction phase is assumed to operate—on average—from the acoustical centroid position and may be operating up to eight hours per day (i.e., a typical onsite daytime work shift). Table 5. Estimated Distances between Construction Activities and the Nearest Noise-sensitive Receptors Construction Phase (and Equipment Types Involved) Distance from Noise-Sensitive Receptor to Site Acoustical Centroid (Feet) ST1 ST3 Demolition (concrete saw/industrial saw, rubber-tired dozer, excavator) 300 285 Site preparation (dozer, tractor, loader, backhoe) 300 285 Grading (excavator, grader, rubber-tired dozer, tractor, loader, backhoe) 300 285 Building construction (crane, forklift, generator set, tractor, loader, backhoe, welder) 300 285 Paving (cement and mortar mixer, paver, paving equipment, roller, tractor, loader, backhoe) 300 285 Architectural coating (air compressor) 300 285 A Microsoft Excel–based noise prediction model emulating and using reference data from the Federal Highway Administration Roadway Construction Noise Model (RCNM) (FHWA 2008) was used to estimate construction noise levels at the nearest occupied noise-sensitive land use. (Although the RCNM was funded and promulgated by the Federal Highway Administration, it is often used for non-roadway projects, because the same types of construction equipment used for roadway projects are often used for other types of construction.) Input variables for the predictive modeling consist of the equipment type and number of each (e.g., two graders, a loader, a tractor), the duty cycle for each piece of equipment (e.g., percentage of time within a specific time period, such as an hour, when the equipment is expected to operate at full power or capacity and thus make noise at a level comparable to what is presented in Table 4), and the distance from the noise-sensitive receiver. The predictive model also considers how many hours that equipment may be on site and operating (or idling) within an established work shift. Conservatively, no topographical or structural shielding was assumed in the modeling. The RCNM has default duty-cycle values for the various pieces of equipment, which were derived from an extensive study of typical construction activity patterns. Those default duty-cycle values were used for this noise analysis, which is detailed in Appendix B, Construction Noise Modeling Input and Output, and produce the predicted results displayed in Table 6. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 18 DECEMBER 2023 Table 6. Predicted Construction Noise at Indicated Receptors per Activity Phase Construction Phase (and Equipment Types Involved) Predicted Construction Noise (dBA, hourly Leq) at the NSR ST1 ST3 Construction Noise Threshold* 77.1 77.6 Demolition (concrete saw/industrial saw, rubber-tired dozer, excavator) 71.2 71.7 Site preparation (dozer, tractor, loader, backhoe) 69.1 69.5 Grading (excavator, grader, rubber-tired dozer, tractor, loader, backhoe) 70.4 70.9 Building construction (crane, forklift, generator set, tractor, loader, backhoe, welder) 67.7 68.2 Paving (cement and mortar mixer, paver, paving equipment, roller, tractor, loader, backhoe) 71.8 72.2 Architectural coating (air compressor) 58.5 58.9 Do any predicted phase noise levels exceed the threshold? no no Notes: Leq = equivalent noise level; dBA = A-weighted decibels; NSR = noise-sensitive receptor. *10 dB greater than the measured sample of outdoor ambient noise level at the NSR. As presented in Table 6, the estimated construction noise levels are predicted to be as high as 72 dBA Leq hourly Leq at the nearest NSR during site demolition and paving phases. Although these nearby occupied properties to the north and south of the Project would be exposed to elevated construction noise levels, the increased noise levels would typically be relatively short term and, as shown in Table 6, represent a temporary and less than 10 dB increase of the outdoor ambient sound level. Thus, construction-related noise impacts would be considered less than significant. Long-Term Operational Off-Site Traffic Noise Exposure The proposed project would result in the creation of additional vehicle trips on local arterial roadways (i.e., Carlsbad Village Drive); however, the Project Trip Generation Summary (LLG 2023) demonstrates that the net effect of substituting current commercial-only land use and associated traffic volumes with that of the proposed mixed-use project would be a reduction in traffic volumes and thus a corresponding reduction in traffic noise. Appendix C, Traffic Noise Modeling Input and Output, includes both this Project Trip Generation Summary and traffic noise prediction worksheets that estimate the with- and without-project traffic noise levels at baseline noise survey location ST3 (see Table 3). The ST3 survey position is, like the proposed project, near Carlsbad Village Drive and the “Lofts” existing multi-family (and mixed-use) residential receptor. The technique to predict traffic noise from both the local Carlsbad Village Drive roadway and the nearby (and acoustically dominant) I-5 freeway is based upon the Federal Highway Administration (FHWA) RD-77-108 model that applies Caltrans-adopted “Calveno” curves. In summary, the net change in outdoor traffic noise due to introduction of the proposed project is negligible because the I-5 freeway traffic is essentially unaffected, and the change to Carlsbad Village Drive is negative (i.e., a less than one dB reduction). For these reasons, the impact to offsite exterior traffic noise would be less than significant. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 19 DECEMBER 2023 Stationary Noise Sources The incorporation of new multi-family homes and a mix of open space uses attributed to development of the proposed project will add a variety of noise-producing electro-mechanical equipment that include those presented and discussed in the following paragraphs. Most of these noise-producing equipment or sound sources would be considered stationary, or limited in mobility to a defined area. Using the commercially available Datakustik CadnaA outdoor sound propagation prediction model, which incorporates International Organization of Standardization (ISO) 9613-2 algorithms and reference data, project- attributed operational noise at nearby community receptors was predicted using several parameters and assumptions as follows:  The model calculation area encompasses the Project and surrounding land uses that adjoin its boundary.  Acoustical ground absorption of the Project site and the surrounding topography (conservatively modeled as flat, which generally approximates the site terrain characteristics) is set at 0.50, which on a zero (reflective) to one (absorptive) scale approximates a combination of the grass-covered soils that generally surround the Project area and any anticipated loosely graveled Project site cover.  Meteorological conditions presume “calm” wind conditions (i.e., less than 0.5 meters per second in any direction) and average air temperature and relative humidity of 50 degrees Fahrenheit and 70%, respectively.  The model “configuration” settings include reflection order set to “1”, which can be interpreted to mean that a sound emission path from a source will continue to be analyzed after impingement upon and reflection from the first intervening structure or barrier. Please see Appendix D for quantitative details of the inputs and outputs that form the basis of the following assessment presentations. Residential Unit Heating, Ventilation, and Air Conditioning Noise For purposes of this analysis, each of the new occupied residential units would be expected to feature a split-system type air-conditioning unit, with an outdoor-exposed air-cooled (2 to 3-ton refrigeration capacity) condenser (ACC) unit having an SPL of approximately 68 dBA at 3 feet based on available data from a likely manufacturer (Carrier 2012). All such ACC units, as well as comparable air-conditioning units for the three retail buildings, would be located on the building rooftops. Table 7 presents the predicted aggregate noise level for each of three elevations above grade (roughly corresponding with potential ground floor, 2nd floor, and 3rd floor receptor heights) at the four surveyed receptor locations from Table 3. Table 7. Predicted Project Rooftop HVAC Noise Levels Site Location(s)/Address(es) At 5-feet above grade (dBA Leq) At 15-feet above grade (dBA Leq) At 25-feet above grade (dBA Leq) ST1 985 Oak Avenue (single-family residence 965 Oak Avenue (Windsor Pointe [multi-family residences]) 31.3 32.4 33.7 CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 20 DECEMBER 2023 Table 7. Predicted Project Rooftop HVAC Noise Levels Site Location(s)/Address(es) At 5-feet above grade (dBA Leq) At 15-feet above grade (dBA Leq) At 25-feet above grade (dBA Leq) ST2 3044 Harding Street, 3 feet from edge of pavement 33.8 34.7 35.3 ST3 1006 Carlsbad Village Drive, 20 feet from edge of pavement (multi-family residence) 37.4 38.2 38.3 ST4 958 Oak Avenue 31.6 32.7 34.0 Source: Appendix D. Notes: Leq = equivalent continuous sound level (time-averaged sound level); Lmax = maximum sound level during the measurement interval; dBA = A-weighted decibels; ST = short-term noise measurement locations. For all three receptor elevations at each of the four studied offsite geographic positions, aggregate Project HVAC noise is predicted to be compliant with the City’s nighttime threshold of 45 dBA hourly Leq. These predicted noise levels are also much less than the measured samples of daytime sound level in the Project vicinity, and would also be expected to be much less than nighttime noise levels, since FTA guidance indicates that nighttime outdoor ambient noise levels are estimated to be 10 dB less than those during the day when in the proximity of a major highway (FTA 2018) such as the I-5. Therefore, under such conditions, the operation of commercial and residential building HVAC units would result in a less-than-significant noise impact. b) For a project located within the vicinity of a private airstrip or an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? There are no private airstrips within the vicinity of the project site. The closest airport to the proposed project site is the McClellan-Palomar Airport, approximately 6 miles southeast of the site and would therefore not expose people residing or working in the project area to excessive noise levels. Impacts would be less than significant. 5.2 Cumulative Impact Assessment Noise in Excess of Standards Implementation of the Project as well as unrelated development projects within its vicinity would all be individually subject to applicable noise regulations, such as the exterior noise level standards already discussed herein. On this basis, and because noise impacts of the Project with respect to relevant standards would be less than significant with mitigation, the Project would not contribute to cumulative exceedances of noise standards, and its incremental effect would be a less-than-significant impact. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 21 DECEMBER 2023 Temporary/Periodic Increases in Ambient Noise Levels The Project would result in temporary outdoor ambient noise increases during construction activities, as discussed under Section 5.1. An unrelated but potentially concurrent construction project, such as the anticipated renovation of the Carlsbad Village Inn, could introduce the potential for a cumulatively considerable significant impact, but it depends on both the intensity of the construction noise emission and its distance to a studied NSR common to both the Project and the unrelated other project site. Due to the decrease in propagated noise levels with distance and the potential presence of physical barriers (i.e., intervening buildings and topography) that can occlude direct and reflected sound paths between noise sources and a receptor position, such opportunity for cumulative noise effects tends to be very localized. By way of illustration, if there are two concurrent construction projects of comparable sound emission intensity, and the activity nearest to the studied noise-sensitive receptor is compliant with the City’s applicable noise threshold, the other activity could be no closer than three times the distance of the receptor to the nearest activity and not make a cumulatively measurable contribution to the total and still City-compliant noise exposure level. If two concurrent projects were close to a receptor, the cumulative noise would be one of the following:  the louder (in dBA) of the two concurrent activities; or,  a logarithmic sum of the two activity noise levels that, per acoustic principles, cannot be more than 3 dBA greater than the louder of the two individual noise-producing activities. In sum, cumulative construction noise is likely to be dominated by the closest or loudest activity to the receptor, and the combination will be no more than a barely perceptible difference (i.e., up to a 3 dBA change). This can be exemplified by a predictive study of the Project’s predicted construction noise at ST3 (i.e., a position representing The Lofts, a multi-family NSR) combined with potential concurrent construction noise originating at the Carlsbad Village Inn site. Construction noise levels predicted for the Project that appear in Table 6 do not exceed 72.2 dBA at ST3 and are several dB less than the 77.6 dBA threshold that presumes a 10 dB allowable increase in outdoor ambient sound level. If construction noise from the unrelated Carlsbad Village Inn renovation project were to occur and have comparable phase-specific aggregate noise emission levels, meaning it too would cause 72.2 dBA noise exposure at ST3, then the logarithmic sum would be 75.2 dBA and thus still compliant with a 77.6 dBA threshold. In this case, neither the Project nor the unrelated proximate project would be making a cumulatively considerable contribution to push a combined noise level over the threshold. Thus, cumulative impacts associated with temporary increases in ambient noise levels would be considered less than significant. Permanent Increase in Ambient Noise Levels Off-Site Traffic Implementation of the Project along with development from other unrelated projects would generate off-site traffic noise. But as discussed in Section 5.1, the Project is expected to yield a net reduction in proximate traffic volumes, and thus a traffic noise level reduction, based on its substitution of commercial land uses on the current Project site. Future traffic conditions are likely to exhibit greater volumes of traffic along the same roadways adjoining the Project due to the effects of other development projects in the area and expected regional growth. This means that a future year traffic noise setting without the Project traffic added, but including cumulative contribution from other projects such as those listed in Section 2.4, would result in a higher noise level against which a future-plus-Project case would be compared. Since the Project traffic contribution would be the same, its effect to the future traffic CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 22 DECEMBER 2023 volumes would be smaller; hence, its change to traffic noise level would be less than the predicted sub-decibel decrease, and consequently less than the allowable dB increase of 3 dB. On this basis, the Project would have a less than significant cumulative traffic noise impact. Stationary Sources Noise from operation of stationary mechanical equipment added to the outdoor ambient sound environment as a result of Project implementation would include permanent on-site noise sources (e.g., rooftop HVAC equipment) as addressed under Section 5.1. A cumulative increase in the outdoor ambient sound environment due to such operation of Project onsite noise sources and comparable sound sources from other unrelated future projects could occur, but only if distances to a common receptor position were sufficiently short. Noise emission from HVAC equipment and other potential onsite sources attenuates with distance and can be occluded by structures and terrain. Since both the Project and a comparably distant unrelated project with respect to a common NSR, such as represented by ST3, would need to be compliant with the City’s exterior noise standards, their potential logarithmic combination would be no greater than 3 dB higher than the louder of the two. By way of illustration, if the concurrently operating and comparably distant unrelated project were to emit stationary- source operations noise (e.g., rooftop HVAC) at the same magnitude as that predicted for the Project, a noise level of 38 dBA at ST3, then the logarithmic combination would be 41 dBA and thus still lower than the City’s nighttime threshold of 45 dBA. Furthermore, this combined HVAC noise level would still be far less than the pre-existing nighttime noise level due to the NSR’s proximity to dominant I-5 noise levels estimated to be 57 dBA at night (i.e., 10 dB less than the daytime measured Leq sample at ST3, per FTA guidance [FTA 2018]). Hence, cumulative impacts to outdoor ambient noise levels resulting from Project stationary sources would be less than significant. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 23 DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 24 DECEMBER 2023 6 Summary of Findings This noise report was conducted for the proposed project. The results indicate that potential impacts during construction would be less than significant. Noise impacts due to operation of the proposed project (including traffic noise) would also be less than significant. No noise mitigation measures are anticipated at this time. Cumulative impacts area also found to be less than significant. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 25 DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 26 DECEMBER 2023 7 References Cited Caltrans (California Department of Transportation). 2013. Technical Noise Supplement to the Traffic Noise Analysis Protocol. September. Caltrans. 2020. Truck Traffic. https://dot.ca.gov/programs/traffic-operations/census Carrier. 2012. CA16NA 018-061 Single-Stage Air Conditioner w/ Puron Refrigerant. Catalog No: CA16NA-06PD. https://resource.carrierenterprise.com/is/content/Watscocom/carrier_ca16na03600g_article_1404816 230548_en_ss?_ga=2.123164302.489492439.1570570581-792571132.1570570581 City of Carlsbad. 2015. City of Carlsbad General Plan. Noise Element. DOT (U.S. Department of Transportation). 2006. FHWA Roadway Construction Noise Model: User’s Guide. Final Report. FHWA-HEP-06-015. DOT-VNTSC-FHWA-06-02. Cambridge, Massachusetts: DOT, Research and Innovative Technology Administration. August 2006. FHWA. 2008. Roadway Construction Noise Model (RCNM), Software Version 1.1. U.S. Department of Transportation, Research and Innovative Technology Administration, John A. Volpe National Transportation Systems Center, Environmental Measurement and Modeling Division. Washington, D.C. December 8, 2008. FTA (Federal Transit Administration). 2018. Transit Noise and Vibration Impact Assessment. FTA Report No. 0123. September. Linscott Law & Greenspan. 2023. Project Trip Generation Summary. Carlsbad Village Mixed Use Project. November 10th. CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT 14814 27 DECEMBER 2023 INTENTIONALLY LEFT BLANK CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix A Baseline Noise Measurement Field Data Field Noise Measurement Data Record: 1498 Project Name Carlsbad village Observer(s)Connor Burke Date 2022-10-19 Meteorological Conditions Temp (F)72 Humidity % (R.H.)40 Wind Light Wind Speed (MPH)5 Wind Direction East Sky Sunny Instrument and Calibrator Information Instrument Name List (ENC) Rion NL-52 Instrument Name (ENC) Rion NL-52 Instrument Name Lookup Key (ENC) Rion NL-52 Manufacturer Rion Model NL-52 Serial Number 553896 Calibrator Name (ENC) LD CAL150 Calibrator Name (ENC) LD CAL150 Calibrator Name Lookup Key (ENC) LD CAL150 Calibrator Manufacturer Larson Davis Calibrator Model LD CAL150 Calibrator Serial #5152 GPS Assistance Used Yes Pre-Test (dBA SPL)94 Post-Test (dBA SPL)94 Windscreen Yes Weighting?A-WTD Slow/Fast?Slow ANSI?Yes Monitoring Record #1 Site ID ST3 Site Location Lat/Long 33.162655, -117.343688 Begin (Time)09:30:00 End (Time)09:45:00 Leq 67.6 Lmax 75.5 Lmin 61.7 Other Lx?L90, L50, L10 L90 63.2 L50 66.2 L10 70.2 Other Lx (Specify Metric)L Primary Noise Source Traffic Other Noise Sources (Background)Distant Traffic Other Noise Sources Additional Description Freeway noise. Train horn. Is the same instrument and calibrator being used as previously noted? Yes Are the meteorological conditions the same as Yes Page 1/6 previously noted? Source Info and Traffic Counts Number of Lanes 4 Lane Width (feet)10 Roadway Width (feet)40 Roadway Width (m)12.2 Distance to Roadway (feet)20 Distance to Roadway (m)6.1 Distance Measured to Centerline or Edge of Pavement? Edge of Pavement Estimated Vehicle Speed (MPH)35 Traffic Counts Vehicle Count Summary A 320, MT 6, HT 6, B 0, MC 0 Select Method for Recording Count Duration Enter Manually Counting Both Directions?Yes Count Duration (minutes)15 Vehicle Count Tally Select Method for Vehicle Counts Enter Manually Number of Vehicles - Autos 320 Number of Vehicles - Medium Trucks 6 Number of Vehicles - Heavy Trucks 6 Number of Vehicles - Buses 0 Number of Vehicles - Motorcyles 0 Description / Photos Site Photos Photo Page 2/6 Monitoring Record #2 Site ID ST1 Site Location Lat/Long 33.161674, -117.342166 Begin (Time)10:00:00 End (Time)10:15:00 Leq 67.1 Lmax 70.4 Lmin 64.5 Other Lx?L90, L50, L10 L90 65.2 L50 66.9 L10 68.7 Other Lx (Specify Metric)L Primary Noise Source Traffic Other Noise Sources Additional Description Freeway traffic dominant Is the same instrument and calibrator being used as previously noted? Yes Are the meteorological conditions the same as previously noted? Yes Description / Photos Site Photos Photo Page 3/6 Monitoring Record #3 Site ID ST4 Site Location Lat/Long 33.161466, -117.343572 Begin (Time)10:35:00 End (Time)10:50:00 Leq 58.4 Lmax 60.7 Lmin 56.3 Other Lx?L90, L50, L10 L90 57.1 L50 57.8 L10 60.1 Other Lx (Specify Metric)L Primary Noise Source Traffic Other Noise Sources Additional Description Freeway noise dominant. AC unit. Is the same instrument and calibrator being used as previously noted? Yes Are the meteorological conditions the same as previously noted? Yes Description / Photos Site Photos Photo Page 4/6 Monitoring Record #4 Site ID ST2 Site Location Lat/Long 33.161376, -117.344028 Begin (Time)11:00:00 End (Time)11:15:00 Leq 62.7 Lmax 70.4 Lmin 58.5 Other Lx?L90, L50, L10 L90 59.1 L50 60.7 L10 65.5 Other Lx (Specify Metric)L Primary Noise Source Traffic Other Noise Sources (Background)Birds, Distant Traffic Other Noise Sources Additional Description Freeway audible. Is the same instrument and calibrator being used as previously noted? Yes Are the meteorological conditions the same as previously noted? Yes Source Info and Traffic Counts Number of Lanes 2 Lane Width (feet)10 Roadway Width (feet)20 Roadway Width (m)6.1 Distance to Roadway (feet)3 Distance to Roadway (m)0.9 Distance Measured to Centerline or Edge of Pavement? Edge of Pavement Estimated Vehicle Speed (MPH)25 Traffic Counts Vehicle Count Summary A 118, MT 2, HT 0, B 0, MC 0 Select Method for Recording Count Duration Enter Manually Counting Both Directions?Yes Count Duration (minutes)15 Vehicle Count Tally Select Method for Vehicle Counts Enter Manually Number of Vehicles - Autos 118 Number of Vehicles - Medium Trucks 2 Number of Vehicles - Heavy Trucks 0 Number of Vehicles - Buses 0 Number of Vehicles - Motorcyles 0 Description / Photos Page 5/6 Site Photos Photo Powered by TCPDF (www.tcpdf.org) Page 6/6 CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix B Construction Noise Modeling Input and Output CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix B - Construction Noise Modeling Input and Output To User: bordered cells are inputs, unbordered cells have formulae noise level limit (ambient + 10 dB) for construction phase at NSR =77 allowable hours over which Leq is to be averaged (example: 8 per FTA guidance) = 1 Construction Activity Equipment Total Equipment Qty AUF % (from FHWA RCNM) Reference Lmax @ 50 ft. from FHWA RCNM Client Equipment Description, Data Source and/or Notes Source to NSR Distance (ft.) Barrier / Topo Insertion Loss (dB) Distance- Adjusted Lmax Allowable Operation Time (hours) Allowable Operation Time (minutes) Predicted 1- hour Leq Demolition Concrete Saw 1 20 90 Concrete/Industrial Saws 300 74.4 1 60 67 Dozer 2 40 82 Rubber Tired Dozers 300 66.4 1 60 65 Excavator 3 40 81 300 65.4 1 60 66 Total for Demolition Phase:71.2 Site Preparation Dozer 3 40 82 300 66.4 1 60 67 Tractor 1 40 84 Tractors/Loaders/Backhoues 300 68.4 1 60 64 Front End Loader 0 40 79 Tractors/Loaders/Backhoues 300 63.4 1 60 0 Backhoe 0 40 78 Tractors/Loaders/Backhoues 300 62.4 1 60 0 Total for Site Preparation Phase:69.1 Grading Excavator 1 40 81 300 65.4 1 60 61 Grader 1 40 85 300 69.4 1 60 65 Dozer 1 40 82 Rubber Tired Dozers 300 66.4 1 60 62 Tractor 1 40 84 Tractors/Loaders/Backhoues 300 68.4 1 60 64 Front End Loader 1 40 79 Tractors/Loaders/Backhoues 300 63.4 1 60 59 Backhoe 1 40 78 Tractors/Loaders/Backhoues 300 62.4 1 60 58 Total for Grading Phase:70.4 Building Construction Crane 1 16 81 300 65.4 1 60 57 Man Lift 3 20 75 Forklifts 300 59.4 1 60 57 Generator 1 50 72 Generator Sets 300 56.4 1 60 53 Tractor 1 40 84 Tractors/Loaders/Backhoues 300 68.4 1 60 64 Front End Loader 1 40 79 Tractors/Loaders/Backhoues 300 63.4 1 60 59 Backhoe 1 40 78 Tractors/Loaders/Backhoues 300 62.4 1 60 58 Welder / Torch 1 40 73 Welders 300 57.4 1 60 53 Total for Building Construction Phase:67.7 Paving Concrete Mixer Truck 2 40 79 Cement and Mortar Mixers 300 63.4 1 60 62 Paver 1 50 77 300 61.4 1 60 58 All Other Equipment > 5 HP 2 50 85 Paving Equipment 300 69.4 1 60 69 Roller 2 20 80 300 64.4 1 60 60 Tractor 1 40 84 Tractors/Loaders/Backhoues 300 68.4 1 60 64 Front End Loader 0 40 79 Tractors/Loaders/Backhoues 300 63.4 1 60 0 Backhoe 0 40 78 Tractors/Loaders/Backhoues 300 62.4 1 60 0 Total for Paving Phase:71.8 Architectural Coating Compressor (air)1 40 78 300 62.4 1 60 58 Total for Architectural Coating Phase:58.5 ST1_centroid Dudek Project No. 14814 ST1_centroid CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix B - Construction Noise Modeling Input and Output To User: bordered cells are inputs, unbordered cells have formulae noise level limit (ambient + 10 dB) for construction phase at NSR =78 allowable hours over which Leq is to be averaged (example: 8 per FTA guidance) = 1 Construction Activity Equipment Total Equipment Qty AUF % (from FHWA RCNM) Reference Lmax @ 50 ft. from FHWA RCNM Client Equipment Description, Data Source and/or Notes Source to NSR Distance (ft.) Barrier / Topo Insertion Loss (dB) Distance- Adjusted Lmax Allowable Operation Time (hours) Allowable Operation Time (minutes) Predicted 1- hour Leq Demolition Concrete Saw 1 20 90 Concrete/Industrial Saws 285 74.9 1 60 68 Dozer 2 40 82 Rubber Tired Dozers 285 66.9 1 60 66 Excavator 3 40 81 285 65.9 1 60 67 Total for Demolition Phase:71.7 Site Preparation Dozer 3 40 82 285 66.9 1 60 68 Tractor 1 40 84 Tractors/Loaders/Backhoues 285 68.9 1 60 65 Front End Loader 0 40 79 Tractors/Loaders/Backhoues 285 63.9 1 60 0 Backhoe 0 40 78 Tractors/Loaders/Backhoues 285 62.9 1 60 0 Total for Site Preparation Phase:69.5 Grading Excavator 1 40 81 285 65.9 1 60 62 Grader 1 40 85 285 69.9 1 60 66 Dozer 1 40 82 Rubber Tired Dozers 285 66.9 1 60 63 Tractor 1 40 84 Tractors/Loaders/Backhoues 285 68.9 1 60 65 Front End Loader 1 40 79 Tractors/Loaders/Backhoues 285 63.9 1 60 60 Backhoe 1 40 78 Tractors/Loaders/Backhoues 285 62.9 1 60 59 Total for Grading Phase:70.9 Building Construction Crane 1 16 81 285 65.9 1 60 58 Man Lift 3 20 75 Forklifts 285 59.9 1 60 58 Generator 1 50 72 Generator Sets 285 56.9 1 60 54 Tractor 1 40 84 Tractors/Loaders/Backhoues 285 68.9 1 60 65 Front End Loader 1 40 79 Tractors/Loaders/Backhoues 285 63.9 1 60 60 Backhoe 1 40 78 Tractors/Loaders/Backhoues 285 62.9 1 60 59 Welder / Torch 1 40 73 Welders 285 57.9 1 60 54 Total for Building Construction Phase:68.2 Paving Concrete Mixer Truck 2 40 79 Cement and Mortar Mixers 285 63.9 1 60 63 Paver 1 50 77 285 61.9 1 60 59 All Other Equipment > 5 HP 2 50 85 Paving Equipment 285 69.9 1 60 70 Roller 2 20 80 285 64.9 1 60 61 Tractor 1 40 84 Tractors/Loaders/Backhoues 285 68.9 1 60 65 Front End Loader 0 40 79 Tractors/Loaders/Backhoues 285 63.9 1 60 0 Backhoe 0 40 78 Tractors/Loaders/Backhoues 285 62.9 1 60 0 Total for Paving Phase:72.2 Architectural Coating Compressor (air)1 40 78 285 62.9 1 60 59 Total for Architectural Coating Phase:58.9 ST3_centroid Dudek Project No. 14814 ST3_centroid CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix C Traffic Noise Modeling Input and Output Volume Rate In Out Total Rate In Out Total Proposed Project Apartment (Multi-family units >20 DU/acre) b 218 DU 6 /DU 1,308 8% 20% : 80% 21 84 105 9% 70% : 30% 83 35 118 Supermarket 5.8 KSF 150 /KSF 870 4% 70% : 30% 25 10 35 10% 50% : 50% 44 43 87 Retail / Strip Commercial 2 KSF 40 /KSF 80 3% 60% : 40% 1 1 2 9% 50% : 50% 4 3 7 Quality Restaurant 6 KSF 100 /KSF 600 1% 60% : 40% 4 2 6 8% 70% : 30% 34 14 48 Project Subtotal 2,858 5%51 97 148 9%165 95 260 Mixed Use Reduction c -616 -4 -4 -8 -39 -41 -80 Final Project Trips 2,242 47 93 140 126 54 180 Existing to be replaced Neighborhood Shopping Center d 58.7 KSF 120 /KSF 7,044 4% 60% : 40% 169 113 282 10% 50% : 50% 352 352 704 Net New Trip Generation -4,802 -122 -20 -142 -226 -298 -524 Footnotes: Therefore, the SANDAG "Neighborhood Shopping Center" rate is appropriate for the existing site. This rate accurately reflects the operations of a shopping center as a whole including trip-chaining and internal interaction between individual uses that are typical of similar shopping centers. If specific trip rates for existing individual uses within the shopping center were applied, this would increase the existing trip generation and therefore overstate the net trip reduction associated with the proposed project. The individual use trip rates pertain to isolated uses and do not accurately reflect driveway trips for a combined shopping center. Split Split Project Trip Generation Summary (rev 11.10.2023) Carlsbad Village Mixed Use Land Use Quantity Daily Volumes AM Peak Hour PM Peak Hour Rate a a. Trip generation rates from SANGAG's (Not So) Brief Guide of Vehicular Traffic Generation Rates for the San Diego Region, April 2002. ("SANDAG Brief Guide") b. The site acreage is 4.12 therefore the residential density calculates to 53 DU/acre (218 / 4.12 = 53). d. Per SANDAG this land use is typically less than 15 acres, less than 125,000 sq. ft., w/usually grocery & drugstore, cleaners, beauty & barber shop, & fast food services) The existing 4.12 acre, 58.7 KSF site contains all of these individual uses including: grocery, drugstore, cleaners, barber shop, and eating establishments. c. Mixed use reduction for AM/PM peak hours calculated using NCHRP 8-51 Internal Trip Capture Estimation Tool. Daily reduction estimated using relationship between peak hours and daily volumes for unadjusted project trips. N:\3651\Trip Generation\Trip Generation11/13/2023 10:11 AM CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix C - Traffic Noise Modeling Input and Output Roadway Traffic Noise Prediction (CNEL) (FHWA RD-77-108, using Calveno curves)Auto %93.74%Day 80.00%Day Evening Nighttime Equivalent MT (%)3.71%Evening 10.00%Auto 74.99%9.37%9.37%198.4% Project:HT (%)2.55%Nighttime 10.00%MT 2.97%0.37%0.37%7.9% HT 2.04%0.25%0.25%5.4% Auto MT HT CNEL Noise Noise Noise Total (at 15m)(at 15m)(at 15m)(at 15m) Existing (2025)Interstate-5 Freeway Southbound ramp onto I-5 6,200 30 58.3 54.9 58.9 62.5 350 49.7 49.9 Southbound I-5 86,300 65 79.4 71.6 73.4 80.9 435 66.7 66.9 Southbound I-5 HOV lane 12,700 65 71.1 63.2 65.1 72.6 455 58.1 58.3 Northbound I-5 HOV lane 13,600 65 71.4 63.5 65.4 72.9 500 57.8 58.0 Northbound I-5 87,100 65 79.4 71.6 73.5 81.0 530 65.5 65.7 total CNEL at above receptor:67.8 68.0 L VEHICLE TRUCK TRUCK TRUCK AADT TOTAL %TRUCK AADT EAL POST E AADT AADT % TOT ----------------- ------By Axle------ ---------------- --------------- -------By Axle------------------2-WAY RTE DIST CNTY MILE DESCRIPTION TOTAL TOTAL VEH 2 3 4 5+2 3 4 5+(1000) data from 2020 Caltrans truck AADT -->5 11 SD 42.712 Leucadia Blvd. 17400 10893 6.26 6,456 591 237 3,607 59.27 5.43 2.18 33.12 1,560 3.710302 * based on conversion of CNEL to Leq(peak hour) per Caltrans TeNS eq. 2-32 (Caltrans 2013) Tooley - Carlsbad Village Mixed Use Study Year or Condition Roadway Roadway Segment and Direction of Traffic Average Weekday Traffic (AWT) at ST3 Leq* (dBA) 2.55 User Inputs (boxed cells)Traffic Percentages by Vehicle Type Speed (mph) Distance (feet) CNEL (dBA) Calveno-based-traffic-noise_mcs120523 Dudek Project No. 14814 I5_Caltrans CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix C - Traffic Noise Modeling Input and Output Roadway Traffic Noise Prediction (CNEL) (FHWA RD-77-108, using Calveno curves)Auto %96.39%Day 80.00%Day Evening Nighttime Equivalent MT (%)1.81%Evening 10.00%Auto 77.11% 9.64% 9.64% 204.0% Project:HT (%)1.81%Nighttime 10.00%MT 1.45% 0.18% 0.18% 3.8% HT 1.45% 0.18% 0.18% 3.8% Auto MT HT CNEL Noise Noise Noise Total (at 15m) (at 15m) (at 15m) (at 15m) 20,500 25 61.3 55.7 61.9 65.1 70 62.8 63.1 15-min traffic counts: (from CB 10/19/22 field survey at ST3)acoustic contribution from I-5 traffic (see "I5_Caltrans" worksheet): 67.8 68.0 autos 320 medium trucks 6 logarithmic sum of Carlsbad Village Drive and I-5 freeway traffic noise:69.0 69.2 heavy trucks 6 measured noise level at ST3 (Oct. 19, 2022 field survey sample Leq):67.6 buses 0 difference between measured outdoor noise level at ST3 and prediction: -1.6 validated? (< +/-3 dB): yes * based on conversion of CNEL to Leq(peak hour) per Caltrans TeNS eq. 2-32 (Caltrans 2013) Existing (2025) without Project User Inputs (boxed cells)Traffic Percentages by Vehicle Type Tooley - Carlsbad Village Mixed Use Study Year or Condition Roadway Roadway Segment and Direction of Traffic Average Weekday Traffic (AWT) Speed (mph) at ST3 Distance (feet) CNEL (dBA) Carlsbad Village Drive west of I-5 and east of Hope Leq* (dBA) Calveno-based-traffic-noise_mcs120523 Dudek Project No. 14814 CVD_woutProj CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix C - Traffic Noise Modeling Input and Output Roadway Traffic Noise Prediction (CNEL) (FHWA RD-77-108, using Calveno curves)Auto %96.39%Day 80.00%Day Evening Nighttime Equivalent MT (%)1.81%Evening 10.00%Auto 77.11% 9.64% 9.64% 204.0% Project:HT (%)1.81%Nighttime 10.00%MT 1.45% 0.18% 0.18% 3.8% HT 1.45% 0.18% 0.18% 3.8% Auto MT HT CNEL Noise Noise Noise Total (at 15m) (at 15m) (at 15m) (at 15m) 15,698 25 60.2 54.6 60.7 64.0 70 61.7 61.9 from Sept. 15, 2022 LLG Project Trip Generation Summary:15-min traffic counts: (from CB 10/19/22 field survey at ST3)acoustic contribution from I-5 traffic (see "I5_Caltrans" worksheet): 67.8 68.0 ADT of current shopping center to be replaced -7044 autos 320 Project added ADT 2242 medium trucks 6 logarithmic sum of Carlsbad Village Drive and I-5 freeway traffic noise:68.8 69.0 net change to Carlsbad Village Drive 2025 ADT:-4802 heavy trucks 6 logarithmic sum of Carlsbad Village Drive and I-5 freeway traffic noise (without Project): 69.0 69.2 buses 0 difference between with and without Project (dB): -0.3 -0.3 significant impact? (> +3 dB): no no * based on conversion of CNEL to Leq(peak hour) per Caltrans TeNS eq. 2-32 (Caltrans 2013) at ST3 Distance (feet) CNEL (dBA) Leq* (dBA) Existing (2025) without Project Carlsbad Village Drive west of I-5 and east of Hope User Inputs (boxed cells)Traffic Percentages by Vehicle Type Tooley - Carlsbad Village Mixed Use Study Year or Condition Roadway Roadway Segment and Direction of Traffic Average Weekday Traffic (AWT) Speed (mph) Calveno-based-traffic-noise_mcs120523 Dudek Project No. 14814 CVD_withProj CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix C - Traffic Noise Modeling Input and Output Calveno-based-traffic-noise_mcs120523 Dudek Project No. 14814 CVD_SANDAG_TFIC CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix D Project HVAC Noise Prediction 0 144 288 432 576 720 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2448 2592 2736 2880 3024 3168 3312 3456 3600 3744 3888 4032 4176 4320 4464 4608 4752 4896 5040 5184 5328 5472 5616 5760 5904 6048 6192 6336 6480 6624 6768 6912 7056 7200 7344 7488 7632 7776 7920 8064 8208 8352 8496 8640 8784 8928 9072 9216 9360 9504 9648 9792 9936 100 8 0 102 2 4 103 6 8 105 1 2 106 5 6 108 0 0 109 4 4 110 8 8 112 3 2 113 7 6 115 2 0 116 6 4 118 0 8 119 5 2 120 9 6 122 4 0 123 8 4 125 2 8 126 7 2 128 1 6 129 6 0 131 0 4 132 4 8 133 9 2 135 3 6 136 8 0 138 2 4 139 6 8 141 1 2 142 5 6 144 0 0 145 4 4 146 8 8 148 3 2 149 7 6 151 2 0 152 6 4 154 0 8 155 5 2 156 9 6 158 4 0 159 8 4 161 2 8 162 7 2 164 1 6 165 6 0 167 0 4 168 4 8 169 9 2 171 3 6 172 8 0 174 2 4 175 6 8 177 1 2 178 5 6 180 0 0 181 4 4 182 8 8 184 3 2 185 7 6 187 2 0 188 6 4 190 0 8 191 5 2 192 9 6 194 4 0 195 8 4 197 2 8 198 7 2 200 1 6 201 6 0 203 0 4 204 4 8 205 9 2 207 3 6 208 8 0 210 2 4 211 6 8 213 1 2 214 5 6 216 0 0 217 4 4 218 8 8 220 3 2 221 7 6 223 2 0 224 6 4 226 0 8 227 5 2 228 9 6 230 4 0 231 8 4 233 2 8 234 7 2 236 1 6 237 6 0 239 0 4 240 4 8 241 9 2 243 3 6 244 8 0 246 2 4 247 6 8 249 1 2 250 5 6 252 0 0 253 4 4 254 8 8 256 3 2 257 7 6 259 2 0 260 6 4 262 0 8 263 5 2 264 9 6 266 4 0 267 8 4 269 2 8 270 7 2 272 1 6 273 6 0 275 0 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 SOURCES: Tooley 2022; Dudek 2022 Carlsbad Village Mixed Use Project (Dudek No. 14814) FIGURE D-1 0 62.5 125 Feet Aggregate Project Operations Noise Prediction Results - across horizontal plane 5' above grade Aggregate A-weighted Sound Pressure Level (SPL) ST3 ST1 ST4 ST2 0 144 288 432 576 720 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2448 2592 2736 2880 3024 3168 3312 3456 3600 3744 3888 4032 4176 4320 4464 4608 4752 4896 5040 5184 5328 5472 5616 5760 5904 6048 6192 6336 6480 6624 6768 6912 7056 7200 7344 7488 7632 7776 7920 8064 8208 8352 8496 8640 8784 8928 9072 9216 9360 9504 9648 9792 9936 100 8 0 102 2 4 103 6 8 105 1 2 106 5 6 108 0 0 109 4 4 110 8 8 112 3 2 113 7 6 115 2 0 116 6 4 118 0 8 119 5 2 120 9 6 122 4 0 123 8 4 125 2 8 126 7 2 128 1 6 129 6 0 131 0 4 132 4 8 133 9 2 135 3 6 136 8 0 138 2 4 139 6 8 141 1 2 142 5 6 144 0 0 145 4 4 146 8 8 148 3 2 149 7 6 151 2 0 152 6 4 154 0 8 155 5 2 156 9 6 158 4 0 159 8 4 161 2 8 162 7 2 164 1 6 165 6 0 167 0 4 168 4 8 169 9 2 171 3 6 172 8 0 174 2 4 175 6 8 177 1 2 178 5 6 180 0 0 181 4 4 182 8 8 184 3 2 185 7 6 187 2 0 188 6 4 190 0 8 191 5 2 192 9 6 194 4 0 195 8 4 197 2 8 198 7 2 200 1 6 201 6 0 203 0 4 204 4 8 205 9 2 207 3 6 208 8 0 210 2 4 211 6 8 213 1 2 214 5 6 216 0 0 217 4 4 218 8 8 220 3 2 221 7 6 223 2 0 224 6 4 226 0 8 227 5 2 228 9 6 230 4 0 231 8 4 233 2 8 234 7 2 236 1 6 237 6 0 239 0 4 240 4 8 241 9 2 243 3 6 244 8 0 246 2 4 247 6 8 249 1 2 250 5 6 252 0 0 253 4 4 254 8 8 256 3 2 257 7 6 259 2 0 260 6 4 262 0 8 263 5 2 264 9 6 266 4 0 267 8 4 269 2 8 270 7 2 272 1 6 273 6 0 275 0 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 SOURCES: Tooley 2022; Dudek 2022 Carlsbad Village Mixed Use Project (Dudek No. 14814) FIGURE D-2 0 74.5 149 Feet Aggregate Project Operations Noise Prediction Results - across horizontal plane 15' above grade Aggregate A-weighted Sound Pressure Level (SPL) ST3 ST1 ST4 ST2 0 144 288 432 576 720 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2448 2592 2736 2880 3024 3168 3312 3456 3600 3744 3888 4032 4176 4320 4464 4608 4752 4896 5040 5184 5328 5472 5616 5760 5904 6048 6192 6336 6480 6624 6768 6912 7056 7200 7344 7488 7632 7776 7920 8064 8208 8352 8496 8640 8784 8928 9072 9216 9360 9504 9648 9792 9936 100 8 0 102 2 4 103 6 8 105 1 2 106 5 6 108 0 0 109 4 4 110 8 8 112 3 2 113 7 6 115 2 0 116 6 4 118 0 8 119 5 2 120 9 6 122 4 0 123 8 4 125 2 8 126 7 2 128 1 6 129 6 0 131 0 4 132 4 8 133 9 2 135 3 6 136 8 0 138 2 4 139 6 8 141 1 2 142 5 6 144 0 0 145 4 4 146 8 8 148 3 2 149 7 6 151 2 0 152 6 4 154 0 8 155 5 2 156 9 6 158 4 0 159 8 4 161 2 8 162 7 2 164 1 6 165 6 0 167 0 4 168 4 8 169 9 2 171 3 6 172 8 0 174 2 4 175 6 8 177 1 2 178 5 6 180 0 0 181 4 4 182 8 8 184 3 2 185 7 6 187 2 0 188 6 4 190 0 8 191 5 2 192 9 6 194 4 0 195 8 4 197 2 8 198 7 2 200 1 6 201 6 0 203 0 4 204 4 8 205 9 2 207 3 6 208 8 0 210 2 4 211 6 8 213 1 2 214 5 6 216 0 0 217 4 4 218 8 8 220 3 2 221 7 6 223 2 0 224 6 4 226 0 8 227 5 2 228 9 6 230 4 0 231 8 4 233 2 8 234 7 2 236 1 6 237 6 0 239 0 4 240 4 8 241 9 2 243 3 6 244 8 0 246 2 4 247 6 8 249 1 2 250 5 6 252 0 0 253 4 4 254 8 8 256 3 2 257 7 6 259 2 0 260 6 4 262 0 8 263 5 2 264 9 6 266 4 0 267 8 4 269 2 8 270 7 2 272 1 6 273 6 0 275 0 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 SOURCES: Tooley 2022; Dudek 2022 Carlsbad Village Mixed Use Project (Dudek No. 14814) FIGURE D-3 0 74.5 149 Feet Aggregate Project Operations Noise Prediction Results - across horizontal plane 25' above grade Aggregate A-weighted Sound Pressure Level (SPL) ST3 ST1 ST4 ST2 0 144 288 432 576 720 864 1008 1152 1296 1440 1584 1728 1872 2016 2160 2304 2448 2592 2736 2880 3024 3168 3312 3456 3600 3744 3888 4032 4176 4320 4464 4608 4752 4896 5040 5184 5328 5472 5616 5760 5904 6048 6192 6336 6480 6624 6768 6912 7056 7200 7344 7488 7632 7776 7920 8064 8208 8352 8496 8640 8784 8928 9072 9216 9360 9504 9648 9792 9936 100 8 0 102 2 4 103 6 8 105 1 2 106 5 6 108 0 0 109 4 4 110 8 8 112 3 2 113 7 6 115 2 0 116 6 4 118 0 8 119 5 2 120 9 6 122 4 0 123 8 4 125 2 8 126 7 2 128 1 6 129 6 0 131 0 4 132 4 8 133 9 2 135 3 6 136 8 0 138 2 4 139 6 8 141 1 2 142 5 6 144 0 0 145 4 4 146 8 8 148 3 2 149 7 6 151 2 0 152 6 4 154 0 8 155 5 2 156 9 6 158 4 0 159 8 4 161 2 8 162 7 2 164 1 6 165 6 0 167 0 4 168 4 8 169 9 2 171 3 6 172 8 0 174 2 4 175 6 8 177 1 2 178 5 6 180 0 0 181 4 4 182 8 8 184 3 2 185 7 6 187 2 0 188 6 4 190 0 8 191 5 2 192 9 6 194 4 0 195 8 4 197 2 8 198 7 2 200 1 6 201 6 0 203 0 4 204 4 8 205 9 2 207 3 6 208 8 0 210 2 4 211 6 8 213 1 2 214 5 6 216 0 0 217 4 4 218 8 8 220 3 2 221 7 6 223 2 0 224 6 4 226 0 8 227 5 2 228 9 6 230 4 0 231 8 4 233 2 8 234 7 2 236 1 6 237 6 0 239 0 4 240 4 8 241 9 2 243 3 6 244 8 0 246 2 4 247 6 8 249 1 2 250 5 6 252 0 0 253 4 4 254 8 8 256 3 2 257 7 6 259 2 0 260 6 4 262 0 8 263 5 2 264 9 6 266 4 0 267 8 4 269 2 8 270 7 2 272 1 6 273 6 0 275 0 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 SOURCES: Tooley 2022; Dudek 2022 Carlsbad Village Mixed Use Project (Dudek No. 14814) FIGURE D-4 0 74.5 149 Feet Aggregate Project Operations Noise Prediction Results - across horizontal plane 25' above grade - no pool or 5th floor deck noises Aggregate A-weighted Sound Pressure Level (SPL) ST3 ST1 ST4 ST2 CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix D - Project HVAC Noise Prediction Receivers 5ft_plane Name M. ID Level Lr Limit. Value Land Use Height CoordinatesDay Night Day Night Type Auto Noise Type X Y Z (dBA) (dBA) (dBA) (dBA)(ft)(ft) (ft) (ft) noise sensitive receptor (and baseline SPL spot) ST1 39 39 0 0 x Total 5 r 953.25 410 5baseline SPL spot ST2 39.5 39.5 0 0 x Total 5 r 329.65 382.19 5noise-sensitive receiver (and baseline SPL spot) ST3 44.5 44.5 0 0 x Total 5 r 516.93 791.87 5noise sensitive receptor (and baseline SPL spot) ST4 35.8 35.8 0 0 x Total 5 r 571.59 280.3 5 15ft_plane Name M. ID Level Lr Limit. Value Land Use Height CoordinatesDay Night Day Night Type Auto Noise Type X Y Z (dBA) (dBA) (dBA) (dBA)(ft)(ft) (ft) (ft) noise sensitive receptor (and baseline SPL spot) ST1 40.2 40.2 0 0 x Total 15 r 953.25 410 15baseline SPL spot ST2 40.4 40.4 0 0 x Total 15 r 329.65 382.19 15noise-sensitive receiver (and baseline SPL spot) ST3 45 45 0 0 x Total 15 r 516.93 791.87 15noise sensitive receptor (and baseline SPL spot) ST4 37.2 37.2 0 0 x Total 15 r 571.59 280.3 15 25ft_plane Name M. ID Level Lr Limit. Value Land Use Height CoordinatesDay Night Day Night Type Auto Noise Type X Y Z (dBA) (dBA) (dBA) (dBA)(ft)(ft) (ft) (ft) noise sensitive receptor (and baseline SPL spot) ST1 41.1 41.1 0 0 x Total 25 r 953.25 410 25baseline SPL spot ST2 41 41 0 0 x Total 25 r 329.65 382.19 25noise-sensitive receiver (and baseline SPL spot) ST3 45.6 45.6 0 0 x Total 25 r 516.93 791.87 25noise sensitive receptor (and baseline SPL spot) ST4 39.2 39.2 0 0 x Total 25 r 571.59 280.3 25 25ft_plane; without pool and fifth-floor common area sound sources Name M. ID Level Lr Limit. Value Land Use Height CoordinatesDay Night Day Night Type Auto Noise Type X Y Z (dBA) (dBA) (dBA) (dBA)(ft)(ft) (ft) (ft) noise sensitive receptor (and baseline SPL spot) ST1 39.2 39.2 0 0 x Total 25 r 953.25 410 25baseline SPL spot ST2 37.6 37.6 0 0 x Total 25 r 329.65 382.19 25noise-sensitive receiver (and baseline SPL spot) ST3 39.5 39.5 0 0 x Total 25 r 516.93 791.87 25noise sensitive receptor (and baseline SPL spot) ST4 35.8 35.8 0 0 x Total 25 r 571.59 280.3 25 Area Sources Name M. ID Result. PWL Result. PWL''Lw / Li Correction Sound Reduction AttenuationOperating Time K0 Freq. Direct. Moving Pt. SrcDay Evening Night Day Evening Night Type Value norm. Day Evening Night R Area Day Special Night Number (dBA) (dBA) (dBA) (dBA) (dBA) (dBA)dB(A) dB(A) dB(A) dB(A)(ft²)(min) (min) (min) (dB) (Hz)Day Evening Night Building Retail A Noise Source BRANS 79.2 79.2 79.2 51.7 51.7 51.7 Lw RAAHU++RBAHU++RAAC++RBAC0 0 0 0 (none)Building Retail B Noise Source BRBNS 77.1 77.1 77.1 51.4 51.4 51.4 Lw RCAHU++RCAC 0 0 0 0 (none)Residential Tower 1 AC RT1AC 88.9 88.9 88.9 58.1 58.1 58.1 Lw R1AC++R2AC++R3AC++R4AC++R5AC0 0 0 3.4899 0 (none)Residential Tower 2 AC RT2AC 89.6 89.6 89.6 57 57 57 Lw R1AC++R2AC++R3AC++R4AC++R5AC0 0 0 2.8421 0 (none) Residential Tower 2 AHU RT2AHU 87.5 87.5 87.5 56.3 56.3 56.3 Lw R1AHU++R2AHU++R3AHU++R4AHU++R5AHU0 0 0 2.8421 0 (none) Residential Tower 1 AHU RT1AHU 86.9 86.9 86.9 55 55 55 Lw R1AHU++R2AHU++R3AHU++R4AHU++R5AHU0 0 0 3.4899 0 (none)Bldg C northern deck guest speech BCNDGS 90 90 90 72.6 72.6 72.6 Lw HSS 0 0 0 -93.2 0 (none)Bldg C southern deck guest speech BCSDGS 90 90 90 66.4 66.4 66.4 Lw HSS 0 0 0 -93.2 0 (none)Bldg C northern deck guest speech BCNDGS 90 90 90 69.2 69.2 69.2 Lw HSS 0 0 0 -93.2 0 (none) pool area guest speech PAGS 90 90 90 69.7 69.7 69.7 Lw HSS 0 0 0 -93.2 0 (none) Parking Garage lvl 1 noises PGL1N 78 78 78 47.7 47.7 47.7 Lw PM 0 0 0 36.4-15 0 (none)Parking Garage lvl 2 noises PGL2N 75 75 75 44.7 44.7 44.7 Lw PM 0 0 0 36.4-12 0 (none)Parking Garage lvl 3 noises PGL3N 72 72 72 41.7 41.7 41.7 Lw PM 0 0 0 36.4-9 0 (none)Parking Garage lvl 4 noises PGL4N 69 69 69 38.7 38.7 38.7 Lw PM 0 0 0 36.4-6 0 (none) Parking Garage lvl 5 noises PGL5N 66 66 66 35.7 35.7 35.7 Lw PM 0 0 0 36.4-3 0 (none) Point Sources Name M. ID Result. PWL Lw / Li Correction Sound Reduction AttenuationOperating Time K0 Freq. Direct. Height Coordinates Day Evening Night Type Value norm. Day Evening Night R Area Day Special Night X Y Z (dBA) (dBA) (dBA)dB(A) dB(A) dB(A) dB(A)(ft²)(min) (min) (min) (dB) (Hz)(ft)(ft) (ft) (ft)Bldg C northern deck outdoor spkr BCNDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 591.64 506.55 54.25Bldg C northern deck outdoor spkr BCNDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 605.1 485.5 54.25Bldg C northern deck outdoor spkr BCNDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 629.62 501.67 54.25 Bldg C southern deck outdoor spkr BCSDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 608.57 292.13 54.25 Bldg D northern deck outdoor spkr BDNDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 699.5 622.01 54.25Pool Area outdoor speaker PAOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 691.99 573 0.25Pool Area outdoor speaker PAOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 682.7 524.05 0.25Pool Area outdoor speaker PAOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 635.94 508.46 0.25 Bldg D northern deck outdoor spkr BDNDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 714 601.5 54.25 Bldg D northern deck outdoor spkr BDNDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 728.76 579.9 54.25Bldg C southern deck outdoor spkr BCSDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 631.65 307.28 54.25Bldg C southern deck outdoor spkr BCSDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 653.36 323.48 54.25Bldg C southern deck outdoor spkr BCSDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 676.09 339.67 54.25 Bldg C southern deck outdoor spkr BCSDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 697.11 354.14 54.25 Bldg C southern deck outdoor spkr BCSDOS 78 78 78 Lw HSS 0 0 0 -81.2 0 (none) 0.25 g 718.81 369.3 54.25 Sound Levels (local) Name ID Type Oktave Spectrum (dB)Source Weight. 31.5 63 125 250 500 1000 2000 4000 8000 A linRetail A AHU RAAHU Lw A 49 52 64 65 66 63 56 50 45 70.9 89.5 stat-ops-noise-sources_mcs112222Retail B AHU RBAHU Lw A 47 50 62 63 64 61 54 48 43 68.9 87.5 stat-ops-noise-sources_mcs112222Retail C AHU RCAHU Lw A 50 53 65 66 67 64 57 51 46 71.9 90.5 stat-ops-noise-sources_mcs112222 Residential - Lvl 1 AHU R1AHU Lw A 61 64 76 77 78 75 68 62 57 82.9 101.5 stat-ops-noise-sources_mcs112222 Residential - Lvl 2 AHU R2AHU Lw A 62 65 77 78 79 76 69 63 58 83.9 102.5 stat-ops-noise-sources_mcs112222Residential - Lvl 3 AHU R3AHU Lw A 62 65 77 78 79 76 69 63 58 83.9 102.5 stat-ops-noise-sources_mcs112222Residential - Lvl 4 AHU R4AHU Lw A 61 64 76 77 78 75 68 62 57 82.9 101.5 stat-ops-noise-sources_mcs112222Residential - Lvl 5 AHU R5AHU Lw A 61 64 76 77 78 75 68 62 57 82.9 101.5 stat-ops-noise-sources_mcs112222 Retail A AC RAAC Lw 70 73 73 72 74 72 64 61 55 75.5 80.4 stat-ops-noise-sources_mcs112222 Retail B AC RBAC Lw 68 71 71 71 73 71 62 59 53 74.4 79 stat-ops-noise-sources_mcs112222Retail C AC RCAC Lw 70 73 73 72 74 72 64 61 55 75.5 80.4 stat-ops-noise-sources_mcs112222residential 1st floor AC R1AC Lw 79 82 82 80 82 83 74 72 67 85.4 89.5 stat-ops-noise-sources_mcs112222residential 2nd floor AC R2AC Lw 79 82 82 80 82 83 74 72 67 85.4 89.5 stat-ops-noise-sources_mcs112222 residential 3rd floor AC R3AC Lw 79 82 82 80 82 83 74 72 67 85.4 89.5 stat-ops-noise-sources_mcs112222 residential 4th floor AC R4AC Lw 79 82 82 80 82 83 74 72 67 85.4 89.5 stat-ops-noise-sources_mcs112222residential 5th floor AC R5AC Lw 79 82 82 80 82 83 74 72 67 85.4 89.5 stat-ops-noise-sources_mcs112222Haynes speech spectrum HSS Lw -14 -11 -8 -5 -5 -7 -13 -20 -26 -3.2 0.7 Haynes 2006parking movement PM Lw A 75 86 90 89 91 93 93 90 85 99.4 116.9 Nicol and Johnson 2011 stat-ops-CadnaA-results_mcs043023 Dudek Project No. 14814 CadnaA_IO CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix D - Project HVAC Noise Prediction AHUs (plenum-type return fan only, no condenser units [see separate worksheet]):A-weighting adjustments 26 13 9 3 0 -1 -1 1 Building Minimum Ventilation average of values for the two fan diameter ranges, per Guyer (Table 12)plug 40 40 38 34 29 23 19 16 average of values for the two fan diameter ranges, per Guyer (Table 12)tube 47 44 46 47 44 45 38 35 per Guyer (Table 12, presumed based on Bies & Hansen ENC)prop 46 48 55 53 52 48 43 38 percent GSF actually occupied (and need ventilation):90 Tag Building GSF Avail. SF Height (ft)Avg. minutes to change air* Volume (ft3)CFM m2 comparable facility function Pressure(iwg)Pressure(Pa) Q (m 3/s)63 125 250 500 1000 2000 4000 8000 OA dB return air fans in building rooftop AHUs: Retail A 4800 4320 10 8 43200 5400 402 retail stores 2 500 3 plug 52 64 65 66 63 56 50 45 71 Retail B 3260 2934 10 8 29340 3667.5 273 retail stores 2 500 2 plug 50 62 63 64 61 54 48 43 69 Retail C 5735 5162 10 8 51615 6451.875 480 retail stores 2 500 3 plug 53 65 66 67 64 57 51 46 72 Residential - Lvl 1 51619 46457 8 4 371657 92914.2 4318 residences 2 500 44 plug 64 76 77 78 75 68 62 57 83 Residential - Lvl 2 53627 48264 8 4 386114 96528.6 4486 residences 2 500 46 plug 65 77 78 79 76 69 63 58 83 Residential - Lvl 3 53627 48264 8 4 386114 96528.6 4486 residences 2 500 46 plug 65 77 78 79 76 69 63 58 83 Residential - Lvl 4 50878 45790 8 4 366322 91580.4 4256 residences 2 500 43 plug 64 76 77 78 75 68 62 57 83 Residential - Lvl 5 43652 39287 8 4 314294 78573.6 3652 residences 2 500 37 plug 64 76 77 78 75 68 62 57 83 fan or AHU cabinet liner/interior attenuation (excludes inlet/outlet PWL split, already in calcs above: 2 3 4 5 6 8 10 10 *from 3-10 minute range for "retail stores", 2-5 minute range for "residences" per Loren Cook's "Engineering Cookbook", 1999 edition, p. 41 fantype = plug, tube, or prop A-weighted PWL (for CadnaA inputs) stat-ops-noise-source-CadnaA-inputs_mcs112222 Dudek Project No. 14814 bldg_AHU CARLSBAD VILLAGE DRIVE MIXED USE PROJECT / NOISE TECHNICAL REPORT Appendix D - Project HVAC Noise Prediction with or without sound insulation? (enter Y/N): yACCs (air-cooled chillers on rooftops):tons LWA 63 125 250 500 1000 2000 4000 8000 LWA 63 125 250 500 1000 2000 4000 8000 LWA 63 125 250 500 1000 2000 4000 8000Building Interior Comfort Bryant BH16-018 (no sound blanket)1.5 67 66.2 66.2 63.9 63.8 62.3 58.4 56.4 50.3 68 66.2 66.2 63.8 64.1 64.6 59.9 57.7 53.6 67 66.2 66.2 63.9 63.8 62.3 58.4 56.4 50.3 Bryant BH16-024 (no sound blanket) 2 71 65 65 63.7 63.4 68.5 64.7 58.7 52.8 72 63.4 63.4 63.3 63.3 70.4 64.5 59.3 55.5 71 65 65 63.7 63.4 68.5 64.7 58.7 52.8 Bryant BH16-036 (no sound blanket) 3 71 68.2 68.2 66.4 67.5 68.4 59.6 58.2 52.4 72 67.7 67.7 66.8 68.1 69.9 62.8 60.3 55.2 71 68.2 68.2 66.4 67.5 68.4 59.6 58.2 52.4 Bryant BH16-048 (no sound blanket) 4 71 68.4 68.4 67.7 69.7 67.6 59.4 56.4 50 73 67.5 67.5 67.8 70.1 70.6 63.1 58.5 53.3 71 68.4 68.4 67.7 69.7 67.6 59.4 56.4 50 Bryant BH16-060 (no sound blanket) 5 69 63.7 63.7 65.4 67.3 64.9 58.3 56.2 51.9 70 61.7 61.7 65.6 68.1 65.8 59.8 58.4 56.1 69 63.7 63.7 65.4 67.3 64.9 58.3 56.2 51.9Daikin AGZ-E 30 (w/out sound insulation) 30 85 84 84 83 84 77 75 74 70 88 92 91 88 87 83 78 73 68 85 84 84 83 84 77 75 74 70Daikin AGZ-E 40 (w/out sound insulation) 40 85 84 84 83 84 77 75 74 70 89 92 91 90 88 84 79 74 69 85 84 84 83 84 77 75 74 70 Daikin AGZ-E 50 (w/out sound insulation) 50 87 85 85 85 86 80 77 75 70 90 93 93 91 89 85 79 74 69 87 85 85 85 86 80 77 75 70 Daikin AGZ-E 60 (w/out sound insulation) 60 87 85 85 85 86 80 77 75 70 91 94 93 94 89 86 81 76 71 87 85 85 85 86 80 77 75 70 Daikin AGZ-E 70 (w/out sound insulation) 70 87 85 85 85 86 80 77 75 70 92 95 95 94 89 87 81 76 71 87 85 85 85 86 80 77 75 70 Daikin AGZ-E 80 (w/out sound insulation) 80 88 88 85 87 86 81 81 77 71 92 95 95 95 89 87 81 76 71 88 88 85 87 86 81 81 77 71 Daikin AGZ-E 90 (w/out sound insulation) 90 88 88 87 87 86 83 80 77 71 93 94 95 92 91 89 83 81 81 88 88 87 87 86 83 80 77 71 Daikin AGZ-E 120 (w/out sound insulation) 120 89 91 85 88 86 82 81 79 72 95 93 96 92 92 90 84 84 82 89 91 85 88 86 82 81 79 72 Daikin AGZ-E 240 (w/out sound insulation) 241 94 94 88 91 90 91 84 82 75 100 98 98 98 95 96 90 90 86 94 94 88 91 90 91 84 82 75 actual percent of GSF occupied:90 Phase Building Tag GSF Avail. SF comparable facility function Avg. GSF per ton* tons of refrig. Approx. Qty. of ACCs tons per ACC Approx. Total PWL (dBA) 63 125 250 500 1000 2000 4000 8000 Retail A 4800 4320 Department Stores - main floor 350 12.3 3 4 76 73 73 72 74 72 64 61 55 Retail B 3260 2934 Department Stores - main floor 350 8.4 2 4 74 71 71 71 73 71 62 59 53 Retail C 5735 5162 Department Stores - main floor 350 14.7 8 2 76 75 75 73 73 71 67 65 59 Residential - Lvl 1 51619 46457 Residential - large 600 77.4 24 3 85 82 82 80 81 82 73 72 66 Residential - Lvl 2 53627 48264 Residential - large 600 80.4 26 3 85 82 82 81 82 83 74 72 67 Residential - Lvl 3 53627 48264 Residential - large 600 80.4 26 3 85 82 82 81 82 83 74 72 67Residential - Lvl 4 50878 45790 Residential - large 600 76.3 25 3 85 82 82 80 81 82 74 72 66Residential - Lvl 5 43652 39287 Residential - large 600 65.5 21 3 84 81 81 80 81 82 73 71 66 *based upon "lo" value per Loren Cook's "Engineering Cookbook", 1999 edition, pp. 59-60 data for models "with sound insulation" or "sound blankets"unweighted PWL (dB) per OCBF (Hz) at full load (100%) unweighted PWL (dB) per OCBF (Hz) at full load (100%) data for models "without sound insulation" or no "sound blankets" stat-ops-noise-source-CadnaA-inputs_mcs112222 Dudek Project No. 14814 bldg_AC