Loading...
HomeMy WebLinkAboutRP 14-10; Laguna Breeze Condominiums; Redevelopment Permits (RP) (5)ACOUSTICAL SITE ASSESSMENT LAGUNA BREEZE CONDOMINIUMS (RP 14-10) CARLSBAD, CA Submitted to: Ms. Mandy Miller - Project Manager ZEPHYR PARTNERS 700 Second Street Encinitas, CA 92024 Investigative Science and Engineering, Inc. Scientific, Environmental, and Forensic Consultants P.O. Box 488 /1134 D Street Ramona, CA 92065 (760) 787-0016 www.ise.us ISE Project #14-018 Investigative Science and Engineering, Inc. August 15, 2014 AEROSPACE/FORENSIC ENGINEERING-ACOUSTICS-VIBRATION-MATERIALS SCIENCE EXPERT WITNESS -AIR QUAUTY - ENVIRONMENTAL COMPLIANCE REPORT CONTENTS INTRODUCTION AND DEFINITIONS 1 Existing Site Characterization 1 Project Description 1 Acoustical Definitions and Theory 1 ENVIRONMENTAL SIGNIFICANCE THRESHOLDS 7 City of Carlsbad Noise Regulations 7 State of California CCR Title 24 8 APPROACH AND METHODOLOGY 8 Field Acoustical Reconnaissance 8 Exterior Traffic Noise Impact Assessment Approach 8 FINDINSS AND RECOMMENDATIONS 9 Field Acoustical Reconnaissance Findings 9 Future Traffic Noise Impacts to Proposed Development 12 CERTIFICATION OF ACCURACY AND QUALIFICATIONS 15 APPENDICIES AND SUPPLEMENTAL INFORMATION 16 APP 1 - Field Reconnaissance IVIeasurement Results 16 APP 2 - TNM Model Input/Output Data Results 18 INDEX OF lAAPORTANT TERMS 28 © 2014 Investigative Science and Engineehng. inc. fhe leader in Scientific Consulting .ind Researcli . LIST OF TABLES TABLE 1: MEASURED AMBIENT SOUND LEVELS 9 TABLE 2: PREDICTED FUTURE TRANSPORTATION NOISE LEVELS 14 LIST OF FIGURES / MAPS / ADDENDA FIGURE 1: PROJECT STUDY AREA VICINITY MAP 2 FIGURE 2: PROJECT STUDY AREA PARCEL MAP 3 FIGURE 3A: PROJECT SITE PANORAMIC PHOTOGRAPH - VIEW LOOKING EAST 4 FIGURE 38: PROJECT SITE PANORAMIC PHOTOGRAPH - VIEW LOOKING WEST 4 FIGURE 4: PROPOSED LAGUNA BREEZE CONDOMINIUMS DEVELOPMENT MAP 5 FIGURE 5: AMBIENT NOISE MONITORING LOCATION MAP 10 FIGURE 6: AMBIENT NOISE MONITORING LOCATION PHOTOS ML 1 11 FIGURE 7: SANDAG YEAR 2030 FUTURE TRAFFIC SEGMENT PREDICTIONS 13 © 2074 Investigative Science and Engineering. Inc. The lander in Scienliiic Co/LsuHing .^nd Rese3ich . INTRODUCTION AND DEFINITIONS Existing Site Characterization The proposed Laguna Breeze Condominiums site (APN: 203-11-048-00) consists of approximately 0.24 gross acres located at 735 Laguna Drive, in the City of Carlsbad, CA as shown in Figure 1 on the following page. Regional access to the site is obtained from Laguna Drive via either State or Jefferson Streets, as shown in Figure 2 on Page 3 of this report. Surrounding land uses consist of a mixture of single- and multifamily residential lots. The project site currently resides as a fully disturbed land use consisting of an existing lot and single-family residential structure as shown in Figures 3a and -b on Page 4 of this report. Usable space within the development parcel has mean elevations ranging between 43 to roughly 48 feet above mean sea level (MSL). Project Description The Laguna Breeze Condominiums project would construct five (5) attached/detached single family units within the development footprint. The project would also include necessary roadway and drainage improvements. The proposed site plan is shown in Figure 4 on Page 5 ofthis report. Acoustical Definitions and Theory Sound waves are linear mechanical waves. They can be propagated in solids, liquids, and gases. The material transmitting such a wave oscillates in the direction of propagation of the wave itself. Sound waves originate from some sort of vibrating surface, which alternatively compress the surrounding air on a forward movement, and expand it on a backward movement. There is a large range of frequencies within which linear waves can be generated, sound waves being confined to the frequency range that can stimulate the auditory organs to the sensation of hearing. For humans, this range is from about 20 Hertz (Hz or cycles per second) to about 20,000 Hz. The air transmits these frequency disturbances outward from the source of the wave. Noise can be represented as a superposition of periodic waves with a large number of components, and is generally defined as unwanted or annoying sound that is typically associated with human activity, and which interferes with or disrupts normal activities. Although exposure to high noise levels has been demonstrated to cause hearing loss, the principal human response to environmental noise is annoyance. The response of individuals to similar noise events is diverse and influenced by the type of noise, the perceived importance of the noise and its appropriateness in the setting, the time of day, and the sensitivity ofthe individual hearing the sound. © 2014 Investigative Science and Engineering. Inc. The leader in Scienttlic Con.'iUlHiig und Reseanrh . AcDuatlcal Sile Assessment L^una Breeza Condaminlums (RP 14-10) - Carlsbad, CA tSE Pfoiecl #14-01S August 15, 2014 Paga 2 •w, • ^Tit^^.Ji —I U'. r- SD COUNFf ac'iEOuFrT ini,eiliqalive b':iefi<e ann Enqineprmn;, Inf I n lan FIGURE 1: Project Study Area Vicinity Msp (ISE 8;14| S-^f4 ti'u&sHgafy^Si^S'\ce-pnii Englr^snng. inc. Acoustical Site Assessrrenl Laguna Breeds Ct^doriilniums (RP 14-10) - Carlsbad, CA ISE Project tf14-0ia AugusM5. 2014 Page 3 lnvE^lig£itNC Sciemif iind Er^gin^Frmg, Inf. FIGURE 2; Project Study Area Parcel (ISE 8/14) ^10^4 InvealajBtivsSdiar'ce flrwJ Eri^^rjeflmg, l<ic Tm WfiOSf SIWSLLV OL™I1IIIII ir.^ a Acoustical Site Assassmanl Laguna Bre&ze Condominiums [RP 14-10) - Carlsbad, CA ISE ProjEcl fl1i-0ia Aiiguat 15, 2014 Page 4 FIGURE 3a: ProjocISite Panoramic Photograph - View Looking East From Madison Street (ISE S/14) FIGURE 3b: Project Site Panoramic Photograph-View Looking Wesl From Laguna Drive (ISE S/14) \2B14lfivesrigai/usSc'ence Bid Eng/noBrtng. Inc Acouatlcsl Sila Assessmenl Laguna BTHIV CondominEuini (RP 14-10) - Ca^tad, CA ISE Proted ffl4-0Ifl Augutf 15. ?0U LAGUpJA Df?IVE \ \ \ 1 1 @ (A) 1 ••P-US n T r 1 FIGURE 4- Propoutt Laguna Breeze CDnctomlniums Development Map (Landmark Conau^nta. 5/14) Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 6 The loudest sounds that the human ear can hear comfortably are approximately one trillion (or 1x10^^) times the acoustic energy that the ear can barely detect. Because of this vast range, any attempt to represent the acoustic intensity of a particular sound on a linear scale becomes unwieldy. As a result, a logarithmic ratio, originally conceived for radio work, known as the decibel (dB), is commonly employed.^ A sound level of zero "0" dB is scaled such that it is defined as the threshold of human hearing, and would be barely audible to a human of normal hearing under extremely quiet listening conditions. Sound levels above 120 dB roughly correspond to the threshold of pain. The minimum change in sound level that the human ear can detect is approximately 3.0 dBA.^ A change in sound level of 10 dB is usually perceived by the average person as a doubling (or halving) of the sound's loudness.^ A change in sound level of 10 dB actually represents an approximate 90 percent change in the sound intensity, but only about a 50 percent change in the perceived loudness. This is due to the nonlinear response of the human ear to sound. As mentioned above, most of the sounds we hear in the environment do not consist of a single frequency, but rather a broad band of frequencies differing in sound level. The intensities of each frequency add to generate the sound we hear. The method commonly used to quantify environmental sounds, consists of determining all of the frequencies of a sound according to a weighting system that reflects the nonlinear response characteristics of the human ear. This is called "A" weighting, and the decibel level measured is called the A-weighted sound level (or dBA). In practice, the level of a noise source is conveniently measured using a sound level meter that includes a filter corresponding to the dBA curve. Although the A-weighted sound level may adequately indicate the level of environmental noise at any instant in time, community noise levels vary continuously. Most environmental noise includes a conglomeration of sounds from distant sources that create a relatively steady background noise in which no particular source is identifiable. For this type of noise, a single descriptor called the Leq (or equivalent sound level) is used. Leq is the energy-mean A-weighted sound level during a measured time interval, and would be defined mathematically by the following continuous integral, L^=^OLog. 10 ^]sPLitfdt ' A unit used to express the relative magnitude of a sound wave. This levei is defined as being equal to 20 times the common logarithm of the ratio of the pressure produced by a sound wave of interest, to a 'reference' pressure wave equal to 20 micro Pascal's (uPa) measured at a distance of 1 meter. 20 (tPa is the smallest amount of pressure capable of producing the sensation of hearing in a human. ' Every 3 dB equates to a 50% drop (or increase) in wave strength; therefore a 6 dB drop/increase = a loss/increase of 75% of total signal strength and so on. ' This is a subjective reference based upon the nonlinear nature of the human ear. © 20^4 Investigative Science and Engineering. Inc Jhe leader ni Saenlllir; Cnn.^ulhnq ,inrl Re::en'-ch , Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 7 In the previous expression, Leq is the energy equivalent sound level, t is the independent variable of time, T is the total time interval of the event, and SPL is the sound pressure level re. 20 p.Pa. Thus, Leq is the 'equivalent' constant sound level that would have to be produced by a given source to equal the average of the fluctuating level measured. For most acoustical studies, the study interval is generally taken as one- hour and the abbreviation used is Le,./, or Leq^/,;/ however, other time intervals are utilized depending on the jurisdictional preference. To describe the time-varying character of environmental noise, the statistical noise descriptors Lio and Lgo are commonly used. They are the noise levels equaled or exceeded during 10 percent and 90 percent of a stated time. Sound levels associated with the Lio typically describe transient or short-term events, while levels associated with the Lgo describe the steady state (or most prevalent) noise conditions. In addition, it is often desirable to know the acoustic range of the noise source being measured. This is accomplished through the maximum and minimum measured sound level (Lmax and Lmm) indicators. The Lmin value obtained for a particular monitoring location is often called the acoustic floor ^or that location. The aggregate of all community noise events are typically averaged into a single value known as the Community Noise Equivalent Level (CNEL). This descriptor is calculated by averaging all events over a specified time interval, and applying a 5-dBA penalty to any sounds occurring between 7:00 p.m. and 10:00 p.m., and a 10-dBA penalty to sounds that occur during nighttime hours (i.e., 10 p.m. to 7 a.m.). This penalty is applied to compensate for the increased sensitivity to noise during the quieter nighttime hours. Mathematically, CNEL can be derived based upon the houriy Leq values, via the following expression where, 'Leq(x)/ is the equivalent sound level during period 'x' at time interval 'i', and 'n' is the number of time intervals: CNEL = ^OLog,,-f^ n ,=1 ljeq{day)i Leq(evenlng+5)i Leq(nlght+W)i ^ 10 1° -Hio ^° -hio ™ ^ ENVIRONMENTAL SIGNIFICANCE THRESHOLDS City of Carisbad Noise Regulations The Noise Element of the City of Carisbad identifies traffic noise sound levels that are compatible with various land uses. According to the City of Carisbad Draft Noise Guidelines Manual, sound levels up to 60 dBA CNEL are compatible with residential land uses such as the proposed project. Sound levels up to 65 dBA CNEL are compatible with daytime recreational uses such as parks and playgrounds. Future noise levels must be predicted at least ten years from the time of building permit application. © 2074 Investigative Science and Engineering. Inc. The leader in Srnnnlilin (A:)n:^iillinq .'ind Reseainh . Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 8 State of California CCR Title 24 The California Code of Regulations (CCR), State Building Code, Part 2, Title 24, Appendix Chapter 35; "Noise Insulation Standards for Multifamily Housing" requires that multi-family dwellings, hotels, and motels located where the CNEL exceeds 60 dBA require an acoustical analysis showing that the proposed design will limit interior noise to less than 45 dBA CNEL for all residential spaces. Worst-case noise levels, either existing or future, must be used. The City of Carisbad has adopted the CCR Title 24 regulations for all types of residential dwellings. ^ APPROACH AND METHODOLOeV Field Acoustical Reconnaissance A single independent monitoring location was selected adjacent to the proposed Laguna Breeze Condominiums site for the purpose of determining the ambient baseline community noise levels during normal free-flow weekday traffic conditions. The instrumentation location, denoted as Monitoring Location ML 1 is shown in Figure 5 on Page 10 of this report. Measurements were performed on May 13, 2014, between approximately 3:00 p.m. and 4:30 p.m., under normal traffic conditions. For the field monitoring effort, a Quest SoundPro SP-DL-2 ANSI Type 2 integrating sound level meter was used as the data collection device. The meter was affixed to a tripod five-feet above ground level, in orderto simulate the noise exposure of an average-height human being. Prior to testing, all equipment was calibrated at ISE's acoustics and vibration laboratory to verify conformance with ANSI SI-4 1983 Type 2 and lEC 651 Type 2 standards.^ Photos ofthe test setup are shown in Figure 6 on Page 11 of this report. Exterior Traffic Noise Impact Assessment Approach The Traffic Noise Model version 2.5 (TNM 2.5) based on FHWA-PD-96-010 and FHWA/CA/TL-87/03 standards was used to calculate future onsite vehicular traffic noise levels.^ Currently, TNM 2.5 is the only noise-modeling program formally accepted for use within the State of California. Dominant input to the acoustical model included the following: O The proposed site development plan (Source: Landmark Consultants, 5/14). ' All testing and calibration is performed by ISE's Acoustics and Vibration Laboratory using a LORAN-C and Rubidium atomic frequency and time standard traceable to National Institute of Standanjs & Technology (NIST). The time and frequency calibration signal has a long- term stability of 10"'°. Specifications for traceability can be obtained at www.nist.gov. ° The components of the TNM model are supported by a scientifically founded and experimentally calibrated acoustic computation methodology. The database is made up of over 6,000 individual pass-by events measured at forty sites across the country. © 2014 Investigative Science and Engineering. Inc. The leader in Scientific Conr.nl!ing r)nd Resean^h Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 9 O A digitized line-of-sight representation of all major roadways affecting the project site underthe worst-case future noise condition (i.e., Madison Street and Laguna Drive). O Future Average Daily Trips (ADT's) for the aforementioned roadway segments (Source: SANDAG year 2030 traffic volumes GIS layer). O A traffic mix of 88.4% LDA/LDT, 6.4% MDT, 4.7% HDT, and 0.5% MCY in accordance with the Caltrans ITS Transportation Protocols (Source: Caltrans Traffic Data Branch, 3/09). ® O A peak hour traffic percentage of 10% of the ADT.^ O Receptor and topographic elevations (Source: USGS Digital Elevation Model / Landmark Consultants). O A composite pavement type, consisting of an average of Portland Cement Concrete (PCC) and Dense-Graded Asphaltic Concrete (DGAC) in accordance with TNM 2.5 test results (1998). Modeled receptor areas consisting of useable space locations within the project footprint as well as exterior building fa9ade points were sampled at various locations to determine the variation of all acoustic sources across, and affecting, the project site. FINDINGS AND RECOMMENDATIONS Field Acoustical Reconnaissance Findings The results of the field reconnaissance sound level monitoring are shown in Table 1 below, with the field data record provided as attachment APP 1 to this report. The values for the equivalent sound level (Leq.h), the maximum and minimum measured sound levels (Lmax and Lmin), and the statistical indicators Lio and Lgo, are given for the monitoring location examined. TABLE 1: Measured Ambient Sound Levels - Laguna Breeze Condominiums Site 1-Hour Noise Level Descriptors In dBA Monitoring Location Start Time L.q Lm., Lmm Lio Lgo ML1 3:05 p.tn. 61.1 79.8 45.0 64.5 49.7 Monitorina Location: Location ML 1: On the corner of the property, just southeast of the intersection of Madison Street and Laguna Drive, In Carlsbad, CA. GPS: CA-VI 6225056.2, 2005474.8, Estimated GPS Error = 5 ft. Temperature = 74 °F. Relative Humidity = 76 %. Barometric Pressure = 29.95 in-Hg. Measurements performed by ISE on 8/13/14. ' The Caltrans vehicle classifications are as follows: LDA = Light Duty Automobile, LDT = Light Duty Truck, MDJ = Medium Duty Truck, HDT = Heavy Duty Truck, and MCY = Motorcycle. ' For values between approximately 8 and 12 percent, the energy-mean A-weighted sound level is equivalent to the CNEL. ©2014 Investigative Science and Engineering. Inc. Tlie leader in Scientific Cniniiiilinq and Rncearcfl . AcousUcai SitB Assessmenl laguna BiBflZB CcHidvninkinia (RP 14-10) - CadstsaiJ CA ISE Pnjiec) i'll4^lfl AuguBl 15. 2014 Paoe10 Jl FIGURE 5: AmDiflnt Noise Monitormg Location Map [ISE 8^14) Acouslical Site Assessn^anl Laguna Condomtniums (RP 14-10)-Cads&Ad. CA ISE Pfotad ffH-Oia AEiguaE 15. 2014 Paoa11 FIGURE 6: Ambient Noise l«cnitoring Location Pholoa MLl (ISE 0/14) Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 12 Measurement data collected reflect the ambient daytime community sound levels in the vicinity of the proposed project site. As can be seen, the houriy average sound level (or Leq.h) recorded over the monitoring period was measured to be 61.1 dBA, and was observed to be principally due to surface street traffic noise along Laguna Drive, and to a lesser extent Madison Street. Future Traffic Noise Impacts to Proposed Development Traffic noise affecting the proposed Laguna Breeze Condominiums site is currently, and would continue to be, the aggregation of surface street traffic along Laguna Drive. This traffic segment has a predicted future traffic volume of 5,860 ADT with a maximum speed of 30 MPH as shown in Figure 7 on Page 13. Additionally, even through no appreciable future traffic volumes are indicated for Madison Street, ISE modeled a small intermittent traffic flow along this roadway in accordance with observed traffic patterns during the site visit. Given this. Table 2 on Page 14 ofthis report shows the predicted TNM receptor ID corresponding to the proposed building number/fa?ade point, and the first- and second floor future year 2030 receptor sound levels. The complete model run is provided as Attachment APP 2 to this report. As can be seen, no sensitive first-floor outdoor space (i.e., rear or side yards) was found to be in excess of the City's 60 dBA CNEL noise abatement threshold. First- and second-floor building fagade areas having a line-of-sight to either Laguna Drive or Madison Street were found to be in excess of the State of California Title 24 noise insulation standard of 60 dBA CNEL for interior habitable areas. As a result, architectural mitigation (denoted in red in Table 2) would be required (i.e., specialized door and window treatments to demonstrate compliance with applicable building standards). This analvsis will be the subiect of a supplemental interior noise assessment for the proiect once final architectural plans are completed. No additional remedial mitigation would be required other than that identified above. Upon application of applicable mitigation measures, the project would be deemed to be fully compliant with the City's Draft Noise Guidelines Manual standards. © 2014 Investigative Science and Engi'ieering. Inc. The leadei in Snieiilific Consiiltino and T^ermarch . Acoustical Sile Assessment Laguna Breeze Condomlniumi (RP 14-10) - Carisbad, CA JSE Projecl #14-018 Augu^ 15, 2014 Paga 13 Irivpil.ij^tjv? Miprce ind (rigiri**'iftC|, lilt FIGURE 7: SANOAG Vaar 2030 Future TrafHc 5«9inant PredicliDns (JSE 0/14} S20''* fvwiHtitBbVii SdOiTce and Engi^iiWJF??. /nc Acousticai Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 14 TABLE 2: Predicted Future Transportation Noise Levels - Laguna Breeze Condominiums TNM Calculation Receptor ID {Lot#) Ground Receptor Sound Levels in dBA Elevated Receptor Sound Levels in dBA TNM Caicuiation Receptor ID (Lot #) Ground Receptor Sound Levels in dBA Elevated Receptor Sound Levels in dBA Notes: 1. Building fagade levels shown as indicated. Elevated receptor height assumed at 15 feef AGL. 2. There are no ground level use spaces subject to the exterior noise standard of 60 dBA CNEL. 3. Areas indicated in n d would require structural acoustical mitigation per CCR Title 24. © 2014 Investigative Science and Engineering. Inc. The leader in Scienllllc Consulting and Research Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 15 CERTIFICATION OF ACCURACY AND QUALIFICATIONS This report was prepared by Investigative Science and Engineering, Inc. (ISE), located at 1134 D Street, Ramona, CA 92065. The members of its professional staff contributing to the report are listed below: Rick Tavares Ph.D. Civil Engineering (rtavares@ise.us) M.S. Structural Engineering M.S. Mechanical Engineering B.S. Aerospace Engineering / Engineering Mechanics Karen Tavares B.S. Electrical Engineering (kta vares@ise. us) ISE affirms to the best of its knowledge and belief that the statements and information contained herein are in all respects true and correct as of the date of this report. Content and information contained within this report is intended only for the subject project and is protected under 17 U.S.C. §§ 101 through 810. Should the reader have any questions regarding the findings and conclusions presented in this report, please do not hesitate to contact ISE at (760) 787-0016. Approved as to Form and Content: Rick Tavares, Ph.D. Project Principal Investigative Science and Engineering, Inc. (ISE) © 20J4 Investigative Science and Engineering. Inc ifie lender in Scientific ('.onsulllild ind f^esearch... Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 16 APPENDICIES AND SUPPLEMENTAL INFORMATION APP 1 - Field Reconnaissance Measurement Results Information Panel Name Start Time stop Time Device Model Type Comments Laguna Breeze - ML 1 8/14/2014 ML 1 Wednesday, August 13, 2014 15:05:46 Wednesday, August 13, 2014 16:05:25 SoundPro DL General Data Panel Description Leq Lmax Weighting Bandwidth Weighting Me 1 1 1 1 2 61.1 dB 79.8 dB A OFF C Descrtption Lmin Exchange Rate Response Exchange Rate Response Meter 1 1 1 2 2 45 dB 3dB SLOW 3dB FAST statistics Chart 10.o Statistics Table on Ol ns OJ 04 95 t't tT tt tt % JS.O 5.2 "' Si "• S! S3 5!3 518 55 56 515 5! 4^ 41.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 42.0 oo 0.0 oo 00 0.0 oo 0.0 00 0.0 0,0 0,0 43.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 00 0.0 44.0 oo 0.0 0.0 0.0 0.0 00 0.0 0.0 0.0 00 0-0 45.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Ol 0.3 46.0 Ol 0.1 Ol Ol 0.1 oo Ol Ol 0.2 0.2 10 47.0 0.2 0.2 0.3 0.4 OS 0.4 0.4 0.2 0.4 0.4 3.3 48.0 OS 05 02 0.3 0.3 0.3 0.3 0.3 03 0.3 3.2 49.0 0.3 0.3 0.3 0.3 0.4 0.5 0.5 0.4 0.4 03 3.5 50.0 04 0.5 0,4 0.5 OS 05 04 OS 0.5 04 4.5 S1.0 0.4 0.4 0.2 0.4 0.4 0.4 0.4 0.4 0.4 0.4 3.8 52.0 0.4 0.4 0.4 0.5 04 0.4 04 04 0.4 0,5 4.2 53.0 0.4 0.4 0.S 0.5 0.5 0.S 0.4 0.5 0.5 o.e 4.7 54.0 0.6 06 04 0.6 06 0.6 06 0.6 0.6 05 5.7 5S.0 OS 0.S 0.S 0.5 0.5 O.e ae 05 0.5 oe 6.2 560 0.6 OS OS 0.6 0.6 0.6 0.6 0.6 07 0.7 5.9 S7.0 0.7 oe 0.7 0.5 0.7 0.7 0.7 0.7 0.6 oe 0.6 6.6 50.0 0.7 oe 0.6 0.6 0.6 0.6 0.6 0.6 0.6 06 O.S 5.8 59.0 0.5 0.S 0.6 o.« o.e 0.6 0.6 O.e 0.7 o.r 8.0 SOO 07 0.6 0.4 0.5 o.s oe 0.6 0.5 0.S 0,6 5.6 01.0 0.8 O.e O.a 0.5 M 0.5 0.6 07 0.7 0.7 6.1 62.0 07 0.7 07 0.7 07 06 06 0.6 0.6 07 6,5 93.0 0.7 0.7 0.4 O.e 0.6 o.e 0.0 O.e 0.5 0.S 5.7 64.0 05 0.3 0.5 OS 05 0.4 0.4 04 0.4 0.4 0,3 4.4 B5.0 05 0.3 0.3 OJ 0.3 0.3 0.3 0.3 0.3 0.2 0.2 2.9 © 2014 Investigative Science and Engineering. Inc. Uiti Itiiider in Scienlific Con.sulting '!'fc/ Resesrch Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 17 Statistics Table (cont'd) 0.1 01 oo 0.0 oo 0.0 4i ^ M--i- 0.1 01 0.0 0.0 n—n— 0.1 0,0 0.0 oo 0.0 0.0 OJO 0.0 0.0 oo 0.0 0.0 0.0 0.0 87.0 700 71.0 72.0 73.0 74,0 75.0 76,0 77.0 78,0 79.0 80.0 0.) 01 oa 0.0 oo 0.0 Exceedance Cliart 70.0 67.0 64.0 61.0 58.0 55.0 52.0 49.0 46.0 43.0 40.0 0.0 0.2 OO Ol 0.0 0.0 oo 0.0 0.1 0.0 0.0 0.0 0.0 o.r oo 0.0 0.0 0.0 0,0 0.0 oo 0.0 oo 0.0 0,0 00 oo 0.0 OD 0.0 oo 0.0 oo 0.0 0,0 0.0 0,0 0.0 0.0 0.0 0.0 0,0 0.0 0.0 0.0 oo 0.0 02 01 0.0 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Exceedance Table K fe- 10% B4.3 64.1 20% 62.5 62,4 30% eo.8 eo.e 40% 59.2 590 50% 57.5 S7.4 60% 55.9 5S,7 70% 84.1 83.9 80% 51.9 61.0 90% 48.5 49.2 IOO".', 44.9 ir •it S3.9 62,2 80.e 589 67.2 SS.6 63.7 68.0 60.4 58,7 B7.1 55.4 T5T^ 63.5 61.9 60.2 58.5 86.9 55.2 63.3 61,8 eoo 58.3 56.8 55.0 53.1 50.6 47.9 T5T^ 63.2 61.6 59.9 58,2 56.6 54,8 61,4 69.7 58.0 S6.5 54.6 S2il 60.2 47.4 61.3 59.5 67.8 86.3 54,4 52.4 60.0 47.2 62,7 61.1 59.4 57,7 58.1 54,3 52.1 49,7 48.7 © 2014 Investigative Science and Engineering. Inc. Ttie leader in Scienlific Conr^atfing and Rer^earcli . Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 18 APP 2 - TNM Model Input/Output Data Results Laguna Brmz* Plan View Run nams: Laguna Braez* Seals: Shsst 1 of 1 :i7Aua2014 Laguna Brmz* Plan View Run nams: Laguna Braez* Seals: ISE Proirct/Contract No. 14-018 Laguna Brmz* Plan View Run nams: Laguna Braez* Seals: TNM Vsrsion 2.5, Feb 2004 Laguna Brmz* Plan View Run nams: Laguna Braez* Seals: Anaivsis Bv: R. Tavarss Ph.D. Roadway: > RsGsiver: - Barriw: > Building Row: - Terrain Une: — GrowdZorw. polygon TrM Zons: dashed polygon Contour Zons: polygon Parallel Barrier: SkswSsctkm: — —> S 20!4 Investigative Science and Engineenng. Inc. TCe leacer :n Sc-enta.c Ccnscirna and Receaich Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carisbad, CA ISE Project #14-018 August 15, 2014 Page 19 INPUT: ROADWAYS ISE R. Tavires Pti.D. 17 August 2014 TNM 2.5 INPUT: ROADWAYS PROJECT/CONTIMCT: RUN: Roadway 14418 Laguna Braaze Points Average pavement type shall tie uaed unless a Stale highway agancy aulistantialsa llw use ol a dtlterent type with the approval ol FHWA Name WMth Name No. Coordlnatea (pavement) Flow Control Segment XYZ Control Speed Percent Pvmt Device Constraint Vehicles Type Affected ft tl 11 It mph % LAGUNA DRIVE 35,0 LD-1 63 6,224,8440 2,005,610,0 40.90 Average LD.2 64 6.226,0040 2.005.606,0 40,60 Average LD.3 65 6.225,176.0 2.005,604,0 47,60 Average LD.4 66 6.225.318.0 2.005.503,0 5080 MADISON STREET 12,0 MS! 67 6,225,008,0 2,005,500,0 40,80 Average MS.2 68 6,225.144 0 2,006,286,0 47,60 C:\T?fM25\Laguna Breeze 17 August 2014 © 2014 Investigative Science and Etiginecring. Inc. file Inadei in Sc.ientifir. Can.'.iuHing r-mil Re-'^efirch... Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 20 INPUT: TRAFRC FOR LAeqIh Volumes ISE R. Tavares Ph.D. 17 August 2014 TNM 2.5 INPUT: TflAFFIC FOR LA«)1h Vdunws PROJECT/COtfTRACT: 14^)18 RUN: Laguns E Roadway Paints No. Segmant Autos MTrucks HTrucks Buses Motorcycles V SV SV SV SV S veh/hr mph veh/hr mph veh/hr mph veh/hr mph veh/hr mph UGUNA DRIVE LD-1 63 518 30 38 30 28 25 1 25 3 30 LD-2 64 51S 30 38 30 28 25 1 25 3 30 LD-S 65 518 30 38 30 28 25 1 25 3 30 LD-4 66 MADISON STREET MS-1 67 20 25 20 25 2 20 1 20 2 25 C:\TNM25\Laguna Breeze 17 August 2014 © 2014 Investigative Science and Engineenng. Inc The leader in Scienlific Consulting ^nd Research , Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 21 INPUT: RECEIVERS ISE R. Tavares Ph.D. 17 August 2014 TNM 2.5 INPUT: RECEIVERS PROJECT/CONTRACT: RUN: Receiver Nama 14.018 Laguna Braoze MHls Coordtnatas (ground) X Y Haighl Input Sound Levels and Crileria Active ebove Existing Impsct Criteria NR in Qround LAeqIh LAeqIh Sub'l Qoal Calc. It dBA dBA dB dB R1-1L 242 1 6,225.069.0 2,005.463.0 45.00 5.00 0.00 60 10.0 5.0 Y R1-2L 243 1 6.225,098.0 2,005.448.0 45.00 5.00 0.00 60 10.0 5-0 Y R1-3L 244 1 6.226.096.0 2,005,430.0 45.00 5.00 0.00 60 10.0 5.0 Y R1-4L 245 1 6,226.075.0 2.005.441,0 45.00 5.00 0,00 60 10.0 5.0 Y R2.1L 246 1 6,225,109.0 2,005,463.0 46,00 6.00 0.00 60 10.0 5.0 Y R2-2L 247 1 6.225,116.0 2.005.477.0 46,00 5,00 0.00 60 10.0 5.0 Y R2-3L 248 1 6,225,123.0 2,005,439,0 46,00 5,00 0.00 60 10.0 50 Y R3.1L 249 1 6.225,141.0 2.005,476.0 46.50 5,00 0.00 60 10.0 5-0 Y R3-2L 250 1 6,225,149.0 2,005.439,0 46.50 5,00 ooo 60 10,0 5-0 Y R4-1L 251 1 6.225,178.0 2.005,4750 4700 5.00 0.00 60 10.0 5.0 Y R4-2L 252 1 6.225.186.0 2.005,459,0 47.00 5.00 0.00 60 10.0 5.0 Y R4-3L 253 1 6.225,172.0 2.005.438.0 4700 5.00 0.00 60 10.0 5.0 Y R5.1L 254 1 6,226,116,0 2.005.400.0 46.00 5.00 0.00 60 10.0 5-0 Y R5-3L 255 1 8,225.149,0 2.005.406.0 46.00 5.00 aoo 60 10.0 5.0 Y R5-4L 256 1 6,225.140,0 2.006.388.0 46.00 5.00 0.00 60 10.0 5.0 Y R5-2L 257 1 6,225.115,0 2.005.381.0 46.00 5.00 ooo 60 10.0 5-0 Y R1-1U 259 1 6,225.070.0 2.005.463,0 55.00 5.00 O.OO 60 10.0 5.0 Y R1-2U 260 1 6,225,099.0 2.005,448,0 55.00 5,00 0.00 60 10.0 5.0 Y R1-3U 261 1 6.225,097.0 2,005,430,0 55.00 5.00 0,00 60 10.0 5-0 Y R1-4U 262 1 6.225,076.0 2.005.441.0 55.00 5.00 ooo eo 10.0 5-0 Y R2-1U 263 1 6,225,109.0 2.005,464,0 56.00 5.00 ooo 60 10.0 5-0 Y R2.2U 264 1 6,225,1170 2.005,477.0 56.00 5.00 0.00 60 10-0 5-0 Y C:\Tr4M25\Lagun8 Breeze 17 August 2014 © 2014 Investigative Science and Engineering. Inc llie leddf tn Sni^^nlific Consulling ami Reseivcli Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15,2014 Page 22 INPUT: RECEIVERS 14.018 R2-3U 265 1 6,225,124.0 2,005,439.0 56.00 5,00 0.00 60 10,0 5.0 Y R3-1U 266 1 6.225.142.0 2,005.476.0 56.50 5,00 0.00 60 10.0 5.0 Y R3-2U 267 1 6,225,150.0 2.005.439.0 56.50 5.00 0.00 60 10.0 5.0 Y R4-1U 268 1 6.225,1790 2,005,475-0 57,00 5.00 0.00 60 10.0 5.0 Y R4-2U 269 1 6.225,187.0 2.006.459.0 57,00 5.00 0.00 60 10.0 5.0 Y R4-3U 270 1 6,225,173.0 2.005,438.0 57,00 5,00 0.00 60 10.0 5.0 Y RS-IU 271 1 6,225,117.0 2,005,400-0 56.00 5,00 0,00 60 10.0 5.0 Y R5.3U 272 1 6,225,150.0 2,005,406-0 56,00 5,00 0,00 60 10.0 5.0 Y R5-4U 273 1 6,225,141.0 2,005,388,0 56.00 5.00 ooo 60 10.0 5,0 Y R5-2U 274 1 6.225,116.0 2,005,381,0 56,00 5.00 ooo 60 10.0 5,0 Y C:\TNM25\Laguna Breeze 17 August 2014 © 2014 Investigative Science and Engineenng. Inc. ftie leader in Scientific Consulting 'vnl Research. . Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 23 INPUT: BMRIERS R. TsvirM Ph.D. 17 Austnt 2014 TNM 2.9 INPUT: aAnnicns PROJCCTVCOfnUACT: RUN: Laguna BrMza Typ* HalgM HBarm Addlnl Nam* Ne. Coordlnataa (bonom) Hatght SagmanI Min Mai »par Top nun:Ris« Spar XYZ SI Sag Ht Partucfea On Important UnH Unit WMth UnH Pomt incra- #Up TOn Siruci? Rottoe- Araa Vol. Lanotti man! Hona? tl It S/»qft feu yd '1 Ictt fit ft tl ft n fl 0,00 S234-t B234-2 B234-7 BZ34-S B234 9 B234-10 B234-t I 6234-12 4-13 B234-18 B234-19 6234-20 B234-21 0.00 B5-1 B52 B5-3 B5S 6.223,065.0 e,22S,074.0 6.225.075 0 6.22S.08S0 6,225.097.0 6.225,093,0 6,225.104.0 6.225.087.0 6.225.065 0 6,225,110.0 6.225,123 0 6,225,123 0 6.225,135.0 6,225.135.0 6.225,148.0 6,225,148.0 6,225.172.0 6,225,172.0 6.225.165.0 6.225.184.0 6.225,160.0 6,225.180.0 6,225,139.0 6.225,139 0 6.225.1350 6.225,135.0 6.225.114.0 6.225.114.0 6.225.110,0 6,225,110.0 e.225.111.0 6,225,117.0 6,225,115,0 6,225,116.0 e.225,t 16.0 2,005.459,0 2,005.465.0 2.005,463.0 2,005,472.0 2.005.457.0 2,005,454.0 2,005,437.0 2.005.425.0 2,005.459.0 2.005,478.0 2,005,476.0 2,005.472.0 2,005,472.0 2,005,475,0 2.005475.0 2,005,471.0 2,005,471,0 2.005,475.0 2.005.474.0 2,005,444 0 2.005.444.0 2,009.438.0 2.005,439.0 2.005,445.0 2,005,445.0 2.005.439.0 2,005.440.0 2,005.445.0 2,005,445.0 2,005,476.0 2,005,389.0 2,005,393.0 Z,(W5,3S7.0 2,005,400.0 2,005,404.0 46.00 45.00 45. QO 45.00 45.00 45.00 45.00 45.00 45.00 46.50 46.50 46.50 46.S0 46.50 48.50 46,50 46,50 46.S0 46.50 46.50 46.50 46,50 46.50 46.50 46.S0 46-50 4650 46.50 46.50 46.50 46.00 46.00 46,00 48.00 46.00 0.00 0.00 0.00 0.00 0.00 0.00 0,00 O.OO 0.00 0.00 O.OO O.OO 0.00 C:MTWZSMsguna Braoia © 2014 Investigative Science and Engineenng. Inc. fhe leader in Scientific Consulting rind Reseaich Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 24 130 6,225,122.0 2,005,408.0 46.00 30.00 0.00 t31 6.225.125.0 2.OO5.4O4.0 46.00 30.00 0.00 132 6.225,142.0 2,005,414.0 46.00 30 00 0.00 133 6,225,153.0 2,005,397.0 46.00 30,00 0.00 134 6,225.120.0 2,IX)5,375.0 46.00 30.00 0.00 135 6.225,111.0 2,005,389.0 4600 30.00 C:^TNIil2St<Ls(|una Braata © 2074 Investigative Science and Engineenng. Inc. The leader tn Scientific Consulting -inil Rn.^edfc'i .. Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10)-Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 25 INPUT: QROUND ZONES ISE R. Taverea Ph.D. 17 August 2014 TNM 2.5 INPUT: QROUND ZONES PROJECT/CONTRACT: RUN: Qround Zone Name 14^)18 Legune Breeze Type Fiow RaslstWity cgs rayls Points No. Coordinetes X Y fl 11 LAGUNA BREEZE SITE 122 6,225.116.0 123 6,225,059.0 124 6.226,058.0 125 6,225,058.0 126 6,225.058.0 127 6.225,058.0 128 6.225,059.0 129 6.226,061.0 130 6.226,063.0 131 6,226,066.0 132 6,225,067.0 133 6,225,069.0 134 6.225.072.0 135 6,226,074.0 136 6.225.076.0 137 6,225,191,0 138 6.225,189.0 139 6.225,118,0 2.005.367,0 2,005.453.0 2.005,456.0 2.005,460.0 2,005,463.0 2.005.466.0 2.005.469.0 2,005,471,0 2,005.474.0 2,005,476.0 2,005.477.0 2.005,479.0 2.005.479.0 2.005.480.0 2.005.481.0 2.005.479.0 2,005.414.0 2,005.368.0 C:\'TT4M25\Laguna Breeze 17 August 2014 © 20)4 Investigative Science and Engineenng. Inc. The leader in Scienlific Cunsulhng .md Research Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 26 RESULTS: SOUND LEVELS ISE R. Tavares Ph.D. RESULTS: SOUND LEVELS PROJECT/CONTRACT: RUN: BARRIER DESIQN: ATMOSPHERICS: 17 August »14 TNM 2.9 Cslculsted with TNM 2.9 14418 Laguna Breeze MPUTHEiaHTS M deg F, 90% RH No. «DUa Existing No Barrier LAaqlh LAeqIh Calcuiated Crim Average pavement type ahall be used unieas a State highway agency substsnllsles the use ol a dfllerent type wtm approval ol FHWA increase over existing Type Cslculsled Crirn Impsct 8ub1 Inc wnhe Calculated Nolaa Reduction LAeqIh Calcuiated Goal Cateulated minus Goal Rl-IL 242 1 0.0 63.7 60 63.7 10 Sfid Lvl 63.7 0.0 5 -5.0 R1-2L 243 1 0.0 55.0 60 55.0 10 55-0 0.0 5 -5.0 R1-3L 244 1 0.0 53.1 60 53.1 to 53.1 0.0 5 -5.0 R1-4L 245 1 0.0 60.1 60 60.1 10 Snd Lvl 60.1 0,0 5 -5.0 R2-1L 246 1 0.0 60.2 60 60.2 10 SndLvl 60.2 0.0 5 -5.0 R2-2L 247 1 0.0 65.9 60 65.9 10 Srxl Lvl 65.9 0,0 5 -5,0 R2-3L 246 1 0.0 48.3 60 48.3 10 48.3 0.0 5 -5.0 R3-1L 249 1 0.0 65.6 60 65.6 10 SndLvl 65.6 0,0 5 -5,0 R3-2L 250 1 0.0 40.0 60 40.0 10 40.0 0.0 5 -5.0 R4-1L 251 1 0.0 65.5 60 65.5 10 SndLvl 65.5 0.0 5 •5.0 R4-2L 252 1 0.0 60,1 60 60.1 10 SndLvl 60.1 0,0 5 -5.0 R4-3L 253 1 0.0 43.3 60 43.3 10 43,3 0,0 5 -5,0 R5-1L 254 1 0.0 56.3 60 56.3 10 56.3 0.0 5 -5.0 R5-3L 255 1 0.0 49.7 60 49.7 10 49.7 0.0 5 -5.0 R5-4L 256 1 0.0 50.4 60 50.4 10 50,4 0,0 5 -5.0 R5-2L 257 1 0.0 58.5 60 58.5 10 58.5 0.0 5 -5.0 R1-1U 259 1 0.0 63.8 60 63.8 10 SndLvl 63.8 0.0 5 -5.0 R1-2U 260 1 0.0 55.8 60 55.8 10 55.8 0.0 5 -5.0 RI-3U 26t 1 0.0 53.2 60 53.2 10 53.2 0.0 5 -5.0 R1-4U 262 1 0.0 59.9 60 59.9 10 59.9 0.0 5 -5.0 R2-1U 263 1 0.0 60.8 60 60.6 10 Srtd Lvl 60.8 0.0 5 -5.0 R2-2U 264 1 0.0 65.7 60 65.7 10 SndLvl 65.7 0.0 5 -5.0 H2-3U 265 1 0.0 46.2 60 48.2 10 48.2 0.0 5 -5.0 R3-1U 266 1 0.0 65.4 60 65.4 10 SndLvl 65.4 0.0 5 -5.0 C:\Tmil23\L>guna Sresze 1 17 August 2014 © 2014 Investigative Science and Engineenng. Inc. fhe leadei in Scientific Cansultnio and Re.^ei^rch .. Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 27 RESULTS: SOUND LEVELS R3-2U R4-1U R4-2U R4-3U R5-1U R5-3U R5-4U R5-2U Dwelling Unit* Ail Selecled Aii Impaclefl Ail that meet NR Goal 267 268 272 273 41.2 65.4 60.5 43.1 55.6 49.9 50.8 58,4 14-018 41.2 10 Snd Lvl 10 Snd Lvl 55.6 49.9 50.8 58.4 41.2 55.4 60,5 50.8 58,4 «DU> Nolw Reduction MIn Avg Max dB C:\TNM29\L«0un« Breeze © 2014 Investigative Science and Engineering. Inc. The leader in Scientific Consultina anti Rest^aicli . INDEX OF IMPORTANT TERMS Acoustical Site Assessment Laguna Breeze Condominiums (RP 14-10) - Carlsbad, CA ISE Project #14-018 August 15, 2014 Page 28 acoustic floor, 7 A-weighted, 6 California Code of Regulations, 8 Caltrans ITS, 9 CCR, 8 CNEL, 7,8,9 dB,6 dBA, 6, 7,8, 9, 12 decibel, 6, 7 FHWA/CA/TL-87/03, 8 FHWA-PD-96-010, 8 Hertz, 1 Hz, 1 ISE, 1,2,8,9, 11, 15 Lio. 7, 9 L90, 7, 9 Leq, 6, 7, 9,12 l-eq(ti). 7 Uq-h. 7 LORAN-C, 8 Noise, 1, 7, 8, 9, 10 Quest SoundPro, 8 SR-125, 9 TNM 2,5,8,9 © 2014 Investigative Science and Efigineering. inc. lhe lender in Scientific Consulting bnd Resf^aic/c .