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HomeMy WebLinkAboutCT 12-01; Miles Pacific Subdivision; Tentative Map (CT) (4)i • NOISE STUDY RECEIVED CITY OF CARLSBAD Miles Tentative Map PLANNING DIVISION Residential Development Carlsbad, CA Project Proponent: Miles Pacific Limited Partnership 2373 Pio Pico Drive Carlsbad, CA 92008 Prepared by: Jeremy Louden Ldn~/114 446 Crestcourt Lane Fallbrook, CA 92028 760-473-1253 November 12, 2012 Project: 1189-02 Miles TM Noise Report TABLE OF CONTENTS TABLE OF CONTENTS .............................................................................................................................................. II LIST OF FIGURES ..................................................................................................................................................... II LIST OF TABLES ...................................................................................................................................................... 11 ATTACHMENTS ...................................................................................................................................................... 11 GLOSSARY OF TERMS ............................................................................................................................................ Ill EXECUTIVE SUMMARY .......................................................................................................................................... IV 1.0 PROJECT INTRODUCTION .............................................................................................................................. 1 1.1 PURPOSE OF THIS STUDY ........................................................................................................................................ 1 1.2 PROJECT LOCATION .••••••••.•.•.••••••••.•••••••.....•••••••..••••••••.•.•.•••••••••••••••••••••••.•..••••••••••••..••••••••.••••••••••••••••••••••••••••••••••• 1 1.3 PROJECT SETIING •••••••••••••••••••••••••••••••••••••••··•••••••••••••••••••••••••••••·•···•••••••••••••••••··••••••••··••••••••••••·••••••••• ••••••••••••••••••• 1 2.0 ACOUSTICAL FUNDAMENTALS ...................................................................................................................... 4 3.0 SIGNIFICANCE THRESHOLDS AND STANDARDS .............................................................................................. 5 4.0 NOISE ENVIRONMENT ................................................................................................................................... 6 4.1 EXISTING NOISE ENVIRONMENT 0NSITE •••••••••••••••••••••••••••••••••••••.......••••••••••••••••••••••••....••••••••••....••••••••••••••••••••••••••..• 6 4.2 FUTURE NOISE PREDICTION METHODOLOGY •••••••••..•....•••••••...••••••••••••••••••••••••••.•....••••...••••••••••....••••••••••••••..•..•.••••••••• 8 5.0 FINDINGS AND MITIGATION ........................................................................................................................ 10 US! OF FIGURES FIGURE 1-A: PROJECT VICINITY MAP ...................................................................................................................... 2 FIGURE 1-B: PROJECT SITE PLAN ............................................................................................................................ 3 FIGURE 4-A: AMBIENT MONITORING LOCATION .................................................................................................... 7 FIGURE 4-B: MODELED RECEPTOR LOCATIONS ...................................................................................................... 9 FIGURE 5-A: BARRIER LOCATIONS ........................................................................................................................ 12 UST OF TABLES TABLE 4-1: MEASURED AMBIENT NOISE LEVELS ..................................................................................................... 6 TABLE 4-2: FUTURE TRAFFIC PARAMETERS ............................................................................................................ 8 TABLE 5-1: FUTURE EXTERIOR NOISE LEVELS ....................................................................................................... 11 ATTACHMENTS FUTURE NOISE MODEL INPUT AND OUTPUT FILES ............................................................................................... 13 ii Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report • GLOSSARY OF TERMS Sound Pressure Level (SPL): a ratio of one sound pressure to a reference pressure (Lref) of 20 1-1Pa. Because of the dynamic range of the human ear, the ratio is calculated logarithmically by 20 log {L/lref) A-weighted Sound Pressure Level (dBA): Some frequencies of noise are more noticeable than others. To compensate for this fact, different sound frequencies are weighted more. Minimum Sound Level (Lmln): Minimum SPL or the lowest SPL measured over the time interval using the A-weighted network and slow time weighting. Maximum Sound Level (Lmax): Maximum SPL or the highest SPL measured over the time interval the A-weighted network and slow time weighting. Equivalent sound level (Leq): the true equivalent sound level measured over the run time. Leq is the A-weighted steady sound level that contains the same total acoustical energy as the actual fluctuating sound level. Day Night Sound Level (LDN): Representing the Day/Night sound level, this measurement is a 24 -hour average sound level where 10 dB is added to all the readings that occur between 10 pm and 7 am. This is primarily used in community noise regulations where there is a 10 dB "Penalty" for night time noise. Typically LON's are measured using A weighting. Community Noise Exposure Level (CNEL): The accumulated exposure to sound measured in a 24-hour sampling interval and artificially boosted during certain hours. For CNEL, samples taken between 7 pm and 10 pm are boosted by 5 dB; samples taken between 10 pm and 7 am are boosted by 10 dB. Octave Band: An octave band is defined as a frequency band whose upper band-edge frequency is twice the lower band frequency. Third-Octave Band: A third-octave band is defined as a frequency band whose upper band- edge frequency is 1.26 times the lower band frequency. Response Time (F,S,I): The response time is a standardized exponential time weighting of the input signal according to fast (F), slow (S) or impulse (I) time response relationships. Time response can be described with a time constant. The time constants for fast, slow and impulse responses are 1.0 seconds, 0.125 seconds and 0.35 milliseconds, respectively. iii Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report • EXECUTIVE SUMMARY This noise study has been completed to determine the noise impacts associated with the development of the proposed residential project. The project known as Miles Tentative Map Residential Development consists of seventeen (17) new single-family units. The project site is located west of Pio Pico Drive, north of Las Flores Drive, east and adjacent to Interstate 5 in the City of carlsbad CA. In order to meet the 60 dBA standard, the project would require a 14-foot high barrier placed at the top of the proposed two foot berm along Interstate 5 for Lots 7-11 and a 6-foot barriers around the perimeters of the remaining Lots. The City of carlsbad, as part of the Noise Element, states that wall heights should not exceed six feet in height. Additionally, if the acoustical study shows that exterior noise levels cannot be mitigated to the level allowable as identified in this policy or less, the development should not be approved without one or more of the following findings: {1} Changes or alterations have been required in, or incorporated into, the project which avoid or substantially lessen the significant environmental effect (noise). (2) Changes or alterations to avoid or substantially lessen the significant environmental effect (noise) are within the responsibility and jurisdiction of another public agency and not the City of carlsbad. Such changes have been adopted by such other agency or can and should be adopted by such other agency. (3) Specific economic, socia~ or other considerations make infeasible the mitigation measures or project alternatives to avoid or substantially lessen the significant environmental effect (noise). If a project is approved with exterior noise levels exceeding the level allowable pursuant to this policy, all purchasers of the impacted property shall be notified in writing prior to purchase, and by deed disclosure in writing, that the property they are purchasing is, or will be, noise impacted and does not meet Carlsbad noise standards for residential property. Based on the modeling results, with the incorporation of the 6-foot barriers the noise levels will be between 59-67 dBA CNEL at the outdoor usable areas and would exceed the 60 dBA CNEL threshold. Therefore, if the project is approved, proper notification in writing along with deed disclosure must be given to all potential purchasers. All side yards should also have 6-foot fencing to help with the noise reduction. Additionally, a final noise assessment is required prior to the issuance of the first building permit for all Lots since the second level building facades are above 60 dBA CNEL. This final report would identify the interior noise requirements based upon architectural and building plans to meet the City's established interior noise limit of 45 dBA CNEL. It should be noted; interior noise levels of 45 dBA CNEL can be obtained with a closed window condition requiring a means of mechanical ventilation (e.g. air conditioning) for each building and upgraded windows for all sensitive rooms (e.g. bedrooms and living spaces). iv Ldn Consulting, Inc. 11112112 1189-Q2 Miles TM Noise Report 1.0 PROJECT INTRODUCDON 1.1 Purpose of this Study The purpose of this Noise study is to determine potential onsite traffic noise impacts created from nearby Interstate 5. Should impacts be determined, the intent of this study would be to recommend suitable mitigation measures to bring those impacts to a level that would be considered less then significant. 1. 2 Project Location The proposed project is located within the City of Carlsbad, CA. More specifically, the project site is located west of Pio Pico Drive, north of Las Flores Drive, east and adjacent to Interstate 5 in the City of Carlsbad CA. Access to the project site is from Pio Pico Drive via Las Flores Drive. A general project vicinity map is shown in Figure 1-A on the following page. 1.3 Project Setting The proposed project consists of 17 single-family residences. The existing site conditions are characterized as disturbed land that is currently utilized as a nursery. Residential uses exist adjacent to the site to the north, south and east. Interstate 5 is located along the western boundary of the site. A project site plan is shown in Figure 1-B on Page 3 of this report. 1 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report r:J Escondtdo JundJon ._J,\~ B naVI'it~ L oon Project Site Ldn Consulting, Inc. 11/12/12 Figure 1-A: Project Vicinity Map Piau -fo.~ol' Rd C&mrlo Real Agua Hed10 dil CenllOt! Ro 2 Oa R1panan Pall\ + McClellan-Palomar '\, Airpon '>~., A.lfll0'1 RO -.jii)B R<id"' C'otlll\('1) Uf1t.1 I c, patol La Source: Google Maps, 11/12 1189-02 Miles TM Noise Report Figure 1-B: Project Site Plan 3 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report • 2.0 ACOUSTICAL FUNDAMENTALS Noise is defined as unwanted or annoying sound which interferes with or disrupts normal activities. Exposure to high noise levels has been demonstrated to cause hearing loss. The individual human response to environmental noise is based on the sensitivity of that individual, the type of noise that occurs and when the noise occurs. Sound is measured on a logarithmic scale consisting of sound pressure levels known as a decibel (dB). The sounds heard by humans typically do not consist of a single frequency but of a broadband of frequencies having different sound pressure levels. The method for evaluating all the frequencies of the sound is to apply an A-weighting to reflect how the human ear responds to the different sound levels at different frequencies. The A-weighted sound level adequately describes the instantaneous noise whereas the equivalent sound level depicted as Leq represents a steady sound level containing the same total acoustical energy as the actual fluctuating sound level over a given time interval. The Community Noise Equivalent Level (CNEL) is the 24 hour A-weighted average for sound, with corrections for evening and nighttime hours. The corrections require an addition of 5 decibels to sound levels in the evening hours between 7 p.m. and 10 p.m. and an addition of 10 decibels to sound levels at nighttime hours between 10 p.m. and 7 a.m. These additions are made to account for the increased sensitivity during the evening and nighttime hours when sound appears louder. A vehicles noise level is from a combination of the noise produced by the engine, exhaust and tires. The cumulative traffic noise levels along a roadway segment are based on three primary factors: the amount of traffic, travel speed, and the vehicle mix ratio or number of medium and heavy trucks. The intensity of traffic noise is increased by higher traffic volumes, greater speeds and increased number of trucks. Because mobile/traffic noise levels are calculated on a logarithmic scale, a doubling of the traffic noise or acoustical energy results in a noise level increase of 3 dBA. Therefore the doubling of the traffic volume, without changing the vehicle speeds or mix ratio, results in a noise increase of 3 dBA. Mobile noise levels radiant in an almost oblique fashion from the source and drop off at a rate of 3 dBA for each doubling of distance under hard site conditions and at a rate of 4.5 dBA for soft site conditions. Hard site conditions consist of concrete, asphalt and hard pack dirt while soft site conditions exist in areas having grade changes, landscaped areas and vegetation. On the other hand, fixed sources radiate outward uniformly as it travels away from the source. Their sound levels attenuate or drop off at a rate of 6 dBA for each doubling of distance. The most effective noise reduction methods consist of controlling the noise at the source, blocking the noise transmission with barriers or relocating the receiver. Any or all of these methods may be required to reduce noise levels to an acceptable level. 4 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report ' 3.0 SIGNIFICANCE THRESHOLDS AND STANDARDS The City of carlsbad's Noise Guidelines Manual {1995) requires that all exterior sensitive areas shall limit noise exposure. For noise sensitive residential land uses, the City has adopted a policy which has established a "normally acceptable" exterior noise level goal of 60 dBA CNEL for the outdoor areas and an interior noise level of less than 45 dBA CNEL. For residential properties identified as requiring a noise study, the study shall document the projected maximum exterior noise level and mitigate the projected exterior noise level to a maximum allowable noise level as identified in the Noise Guideline Manual. If the acoustical study shows that exterior noise levels cannot be mitigated to the level allowable as identified in this policy or less, the development should not be approved without one or more of the following findings: {1} Changes or alterations have been required in, or incorporated into, the project which avoid or substantially lessen the significant environmental effect (noise). (2) Changes or alterations to avoid or substantially lessen the significant environmental effect (noise) are within the responsibility and jurisdiction of another public agency and not the City of carlsbad. Such changes have been adopted by such other agency or can and should be adopted by such other agency. (3) Specific economic, socia~ or other considerations make infeasible the mitigation measures or project alternatives to avoid or substantially lessen the significant environmental effect (noise). If a project is approved with exterior noise levels exceeding the level allowable pursuant to this policy, all purchasers of the impacted property shall be notified in writing prior to purchase, and by deed disclosure in writing, that the property they are purchasing is, or will be, noise impacted and does not meet carlsbad noise standards for residential property. california Noise Insulation Standards (california Code of Regulations, Title 24) and the City of carlsbad Noise Element establish an interior noise standard of 45 dBA for residential structures. Acoustical studies must be prepared for residential structures that are proposed to be located within the Community Noise Equivalent Level (CNEL) noise contours of 60 dBA or greater. In addition, the City requires residential structures located within the CNEL noise contours of 60 or greater to prepare an acoustical study. The studies must demonstrate that the building is designed to reduce interior noise to 45 dBA or lower (CNEL). 5 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report 4.0 NOISE ENVIRONMENT 4.1 Existing Noise Environment Onsite Noise measurements were taken using a Larson-Davis Model LxT Type 1 precision sound level meter, programmed, in "slow" mode, to record noise levels in "A" weighted form. The sound level meter and microphone were mounted on a tripod, five feet above the ground and equipped with a windscreen during all measurements. The sound level meter was calibrated before and after the monitoring using a Larson-Davis calibrator, Model CAL 200. Monitoring location 1 (ML1) was located in the future location of Lot 1; monitoring location 2 (ML2) was located near the future location of Lots 8 and9. The results of the noise level measurements are presented in Table 4-1. The noise measurements were monitored for a time period of 30 minutes during heavy traffic conditions. The existing noise levels in the project area consisted primarily of traffic from Interstate 5. The ambient Leq noise levels measured in the area of the Project during the afternoon hours were found to be roughly 57-73 dBA. The statistical indicators Lmax, Lmin, LlO, L50 and L90, are given for the monitoring location. As can be seen from the L90 data, 90% of the time the noise level is approximately 51-71 dBA from Interstate 5. The lower noise levels in the northern portion of the site are due to distance separation and the vertical off set between Interstate 5 and the Project site (the roadway is located 20 feet or more below the site). The noise monitoring locations are provided graphically in Figure 4-A on the following page. Table 4-1: Measured Ambient Noise Levels Noise Levels (dBA) Measurement Identification Description Time Leq Lmax Lmin LlO LSO L90 MLl Adjacent to Pio 1:15 p.m. -56.9 72.7 49.9 56.2 52.3 51.2 Pico Drive 1:45 p.m. ML2 Adjacent to 1:50 p.m.-72.8 76.3 68.1 74.1 72.6 71.1 Interstate 5 2:20p.m. Source: Ldn Consulting, Inc. 8/13/12 6 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report • Figure 4-A: Ambient Monitoring Location 7 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report 4.2 Future Noise Prediction Methodology The required coordinate information necessary for the Sound32 traffic noise prediction model input was taken from the preliminary site plans provided by BHA, Inc., October 2012. To determine the future noise levels the preliminary site plans were used to identify the pad elevations, the roadway elevations, and the relationship between the noise source(s) and the receptor areas. To evaluate the future potential noise impacts on the proposed development, outdoor observers were located in the private areas of each Lot. The first floor modeled observers were placed five feet above the finished pad elevation. In addition, the top of pads along with the proposed two foot berms along Lots 7-11 were modeled to adjust for grade separation and the natural shielding from the roadways. To determine the future noise environment and impact potentials the Sound32 model was utilized. The critical model input parameters, which determine the projected vehicular traffic noise levels, include vehicle travel speeds, the percentages of automobiles, medium trucks and heavy trucks in the roadway volume, the site conditions and the peak hour traffic volume. The peak hour traffic volumes range between 6-12% of the average daily traffic (ADT) and 10% is generally acceptable for noise modeling. Table 4-2 presents the roadway parameters used in the analysis including the peak traffic volumes, vehicle speeds and the hourly traffic flow distribution (vehicle mix). The vehicle mix provides the hourly distribution percentages of automobile, medium trucks and heavy trucks for input into the Sound32 Model. The Buildout conditions include the future traffic volume forecasts provided in the Caltrans Noise Study Report for I -5 North Coast Corridor Widening Project. The traffic was broken into lane segments for the main lanes and HOV lanes base on the ultimate Buildout configuration. The modeled observer locations for each Lot are presented in Figure 4-B on the following page. Table 4-2: Future Traffic Parameters Modeled Vehicle Mix o;o1 Roadway Lane Peak Hour Speeds Description Volumes1 Medium Heavy (MPH) Auto Trucks Trucks Interstate 5 Main Lanes 9,000 65 94.3 2.4 3.3 North and South Bound HOV Lanes 1,500 65 100 0 0 1 Source: Caltrans 8 Ldn Consulting, Inc. 11/12/12 1189-Q2 Miles TM Noise Report Figure 4-B: Modeled Receptor Locations 9 Ldn Consulting, Inc. 11/12/12 1189-Q2 Miles TM Noise Report 5.0 FINDINGS AND MmGAllON The Buildout analysis was modeled utilizing the roadway parameters described above in Section 4 and shown in Table 4-2 for the future conditions. In order to meet the 60 dBA standard, the project would require a 14-foot high barrier placed at the top of the proposed two foot berm along Interstate 5 for Lots 7-11 and a 6-foot barriers around the perimeters of the remaining Lots. The City of carlsbad, as part of the Noise Element, states that wall heights should not exceed six feet in height. Additionally, if the acoustical study shows that exterior noise levels cannot be mitigated to the level allowable as identified in this policy or less, the development should not be approved without one or more of the following findings: {1} Changes or alterations have been required in, or incorporated into, the project which avoid or substantially lessen the significant environmental effect (noise). (2) Changes or alterations to avoid or substantially lessen the significant environmental effect (noise) are within the responsibility and jurisdiction of another public agency and not the City of carlsbad. Such changes have been adopted by such other agency or can and should be adopted by such other agency. (3) Specific economic, social, or other considerations make infeasible the mitigation measures or project alternatives to avoid or substantially lessen the significant environmental effect (noise). If a project is approved with exterior noise levels exceeding the level allowable pursuant to this policy, all purchasers of the impacted property shall be notified in writing prior to purchase, and by deed disclosure in writing, that the property they are purchasing is, or will be, noise impacted and does not meet carlsbad noise standards for residential property. The modeling results for a six foot wall, in combination with a two foot berm for Lots 7-11, are quantitatively shown in Table 5-1 below. As can be seen in Table 5-1, with the incorporation of the 6-foot barriers the noise levels will be between 59-67 dBA CNEL at the outdoor usable areas and would exceed the 60 dBA CNEL threshold. Therefore, if the project is approved, proper notification in writing along with deed disclosure must be given to all potential purchasers. Figure 5-A on the following page shows the location of the barriers to reduce the noise levels at the proposed exterior outdoor areas. All side yards should also have 6-foot fencing to help with the noise reduction. The barriers must be constructed of a non-gapping material consisting of masonry, V2 inch thick glass, earthen berm or any combination of these materials. The 532 models input parameters and output files for the future conditions with and without the mitigation are also provided in Attachment A. 10 Ldn Consulting, Inc. 11112112 1189-02 Miles TM Noise Report Table 5-1: Future Exterior Noise Levels 16 *Wall located on a two foot berm 1Maximum Wall Height 60 2Noise Levels exceed the 60 dBA CNEL threshold. 6 60 6 60 62 Additionally, a final noise assessment is required prior to the issuance of the first building permit for all Lots since the first and second level building facades are above 60 dBA CNEL. This final report would identify the interior noise requirements based upon architectural and building plans to meet the City's established interior noise limit of 45 dBA CNEL. It should be noted; interior noise levels of 45 dBA CNEL can be obtained with conventional building construction methods and providing a closed window condition requiring a means of mechanical ventilation (e.g. air conditioning) for each building and upgraded windows for all sensitive rooms (e.g. bedrooms and living spaces). 11 Ldn Consulting, Inc. 11/12/12 1189-Q2 Miles TM Noise Report Figure 5-A: Barrier Locations 12 Ldn Consulting, Inc. 11/12/12 1189-02 Miles TM Noise Report ATTACHMENT A FUTURE NOISE MODEL INPUT AND OUTPUT FILES MILES TM GROUND LEVEL UNMffiGATED T-5N MAIN, 1 8480' 65' 220' 65' 305 '65 T-5N HOV, 2 3000' 65' 0' 65' 0' 65 T-5SHOV, 3 3000' 65 '0' 65 '0' 65 T-5SMAIN,4 8480' 65' 220' 65' 305 '65 L-5N 5 MAIN LANES, 1 N,-248.,1467,14, N,538.,208,55, N,741.,-119,59, N,811.,-230,60, L-5N 2 HOV, 2 N,-268.,1455,14, N,518.,196,55, N,721.,-131,59, N,791.,-242,60, L-5S2 HOV, 3 N,-306.,1431,14, N,480.,172,55, N,683.,-155,59, N,753.,-266,60, L-5S 5 MAIN LANES, 4 N,-325.,1419,14, N,461.,160,55, N,664.,-167,59, N,734.,-248,60, B-LOT 1-3, 1, 1, 0 ,0 1026.,983,106,106, 947.,977,106,106, 937.,984,100,100, 898.,984,100,100, 794.,978,100, 100, 787.,984,96,96, 765.,982,96,96, 735.,982,96,96, 734.,929,96,96, 811.,840,96,96, B-LOT4-7,2, 1,0,0 728.,937,93,93, 612.,938,89,89, 591.,936,89,89, 588.,932,89,89, B-LOT 9-13, 3, 1, 0 ,0 557.,698,90,90, 555.,597,90,90, 581.,563,90,90, 614.,563,91,91, 674.,563,91,91, 689.,570,91,91, 696.,566,91,91, 723.,563,91,91, 735.,568,95,95, 814.,559,94,94, B-CDS BARRIER, 4 , 1 , 0 ,0 475.,815,90,90, 470.,804,85,85, 459.,785,85,85, 458.,753,85,85, 462.,738,85,85, 481.,720,85,85, 536.,714,85,85, 557.,698,91,91, B-CALlRANS, 5, 2, 0,0 565.,550,83,93, 719.,336,83,93, 790.,245,84,94, B-5N BERM, 6 , 1 , 0 ,0 565.,550,84,84, 441.,730,84,84, 290.,941,81,81, 168.,1126,78,78, B-LOT14, 7, 1,0,0 814.,559,94,94, 875.,555,95,95, 888.,553,95,95, 976.,550,98,98, B-LOT8,8,1,0,0 588.,932,90,90, 476.,927,90,90, 475.,815,90,90, B-Lot 12-13 west, 9 , 1 , 0 ,0 736.,699,95,95, 735.,568,95,95, B-Median, 10 , 2 , 0 ,0 -284.,1444,14,18, 500.,183,55,59, 702.,-141,59,63, 773.,-251,60,64, R, 1' 65,10 976,956,111.,LOT 1 R, 2' 65,10 834,959,105.,LOT 2 R,3,65,10 753,965,101.,LOT 3 R,4,65,10 735,890,96.,LOT 4 R,5,65,10 672,917,94.,LOT 5 R,6,65,10 610,918,94.,LOT 6 R, 7,65,10 550,914,93.,LOT 7 R,8,65,10 493,911,93.,LOT 8 R,9,65,10 585,600,93.,LOT 9 R, 10,65,10 640,590,93.,LOT 10 R, 11,65,10 700,587,94.,LOT 11 R, 12' 65,10 748,669,99.,LOT 12 R, 13' 65,10 744,598,100.,LOT 13 R, 14,65,10 969,582,101.,LOT 14 R, 15,65,10 969,670,101.,LOT 15 R, 16,65,10 905,733,103.,LOT 16 R, 17,65,10 968,733,106.,LOT 17 D, 4.5 ALL,ALL c,c SOUND32 -RELEASE 07/30/91 TITLE: MILES TM GROUND LEVEL UNMmGATED REC REC ID DNL PEOPLE LEQ(CAL) 1 LOT 1 65. 10. 59.1 2 LOT2 65. 10. 59.9 3 LOT3 65. 10. 60.5 4 LOT4 65. 10. 59.9 5 LOTS 65. 10. 60.4 6 LOT6 65. 10. 61.7 7 LOT? 65. 10. 62.6 8 LOTS 65. 10. 64.5 9 LOT9 65. 10. 69.7 10 LOT 10 65. 10. 66.3 11 LOT 11 65. 10. 64.5 12 LOT 12 65. 10. 63.0 13 LOT 13 65. 10. 64.9 14 LOT 14 65. 10. 61.3 15 LOT 15 65. 10. 59.8 16 LOT 16 65. 10. 60.1 17 LOT 17 65. 10. 59.8 • MILES TM GROUND LEVEL MillGATED T-5N MAIN, 1 8480 '65' 220' 65' 305' 65 T-5N HOV, 2 3000' 65 '0' 65 '0' 65 T-5SHOV,3 3000 '65' 0' 65 '0' 65 T-5SMAIN,4 8480' 65' 220' 65' 305' 65 L-5N 5 MAIN LANES, 1 N,-248.,1467,14, N,538.,208,55, N,741.,-119,59, N,811.,-230,60, L-5N 2 HOV, 2 N,-268.,1455,14, N,518.,196,55, N,721.,-131,59, N,791.,-242,60, L-5S2 HOV, 3 N,-306.,1431,14, N,480.,172,55, N,683.,-155,59, N,753.,-266,60, L-5S 5 MAIN LANES, 4 N,-325.,1419,14, N,461.,160,55, N,664.,-167,59, N,734.,-248,60, B-LOT 1-3, 1, 2, 0 ,0 1026.,983, 106,112, 947.,977,106,112, 937.,984,100,106, 898.,984,100,106, 794.,978,100,106, 787.,984,96,102, 765.,982,96,102, 735.,982,96,102, 734.,929,96,102, 811.,840,96,102, B-LOT 4-7, 2, 2, 0 ,0 728.,937,93,99, 612.,938,89,95, 591.,936,89,95, 588.,932,89,95, B-LOT 9-13, 3, 2, 0 ,0 557.,698,90,96, 555.,597,90,96, 581.,563,90,96, 614.,563,91,97, 674.,563,91,97, 689.,570,91,97, 696.,566,91,97, 723.,563,91,97, 735.,568,95,101, 814.,559,94,100, B-CDS BARRIER, 4 , 2 , 0 ,0 475.,815,90,96, 470.,804,85,91, 459.,785,85,91, 458.,753,85,91, 462.,738,85,91, 481.,720,85,91, 536.,714,85,91, 557.,698,91,97, B-CAL TRANS, 5 , 2 , 0 ,0 565.,550,83,93, 719.,336,83,93, 790.,245,84,94, B-5N BERM, 6 , 1 , 0 ,0 565.,550,84,84, 441.,730,84,84, 290.,941,81,81, 168.,1126,78,78, B-LOT 14, 7, 2, 0 ,0 814.,559,94,100, • 875.155519511011 888.155319511011 976.155019811041 B-LOT81812 10 10 588.19321901961 476.19271901961 475.18151901961 B-Lot 12-13 west, 9 I 2 I 0 10 736.169919511011 735.156819511011 B-Median1 10 I 2 I 0 10 -284.114441141181 500.11831551591 702.1·1411591631 773.1·2511601641 R,1165110 97619561111.1LOT 1 R12165 110 83419591105.1LOT 2 R1 3165 110 75319651101.1LOT 3 R14165 110 7351890196.1LOT 4 Rl 5 I 65110 6721917194.1LOT 5 Rl 6 I 65110 6101918194.1LOT 6 R1 71 65 110 5501914193.1LOT 7 Rl 8 I 65110 4931911193.1LOT 8 R19 165 110 5851600193.1LOT 9 Rl 10 I 65110 6401590193.1LOT 10 R, 11165110 70015B7194.1LOT 11 Rl 12 I 65110 7481669199.1LOT 12 Rl 13 I 65110 74415981100.1LOT 13 Rl 14 I 65110 96915821101.1LOT 14 R, 15165110 96916701101.1LOT 15 Rl 16 I 65110 90517331103.1LOT 16 Rl 17 I 65110 96817331106.1LOT 17 D1 4.5 ALL,ALL clc SOUND32 -RELEASE 07/30/91 Tffi£: MILES TM GROUND LEVEL MmGATED REC REC ID DNL PEOPLE LEQ(CAL) 1 LOT 1 65. 2 LOT2 65. 3 LOT3 65. 4 LOT4 65. 5 LOTS 65. 6 LOT6 65. 7 LOT? 65. 8 LOTS 65. 9 LOT9 65. 10 LOT 10 65. 11 LOT 11 65. 12 LOT 12 65. 13 LOT 13 65. 14 LOT 14 65. 15 LOT 15 65. 16 LOT 16 65. 17 LOT 17 65. 10. 59.4 10. 60.2 10. 60.5 10. 60.1 10. 60.5 10. 61.5 10. 62.6 10. 64.4 10. 66.7 10. 65.0 10. 64.3 10. 63.1 10. 64.9 10. 60.9 10. 59.9 10. 60.4 10. 60.3 --~-------, MILES TM SECOND LEVEL T-5N MAIN, 1 8480' 65' 220' 65' 305 '65 T-5N HOV, 2 3000' 65' 0' 65 '0 '65 T-5SHOV,3 3000' 65' 0' 65' 0' 65 T-5S MAIN,4 8480' 65' 220' 65' 305 '65 L-5N 5 MAIN LANES, 1 N,-248.,1467,14, N,538.,208,55, N,741.,-119,59, N,811.,-230,60, L-5N 2 HOV, 2 N,-268.,1455,14, N,518.,196,55, N,721.,-131,59, N,791.,-242,60, L-5S 2 HOV, 3 N,-306.,1431,14, N,480.,172,55, N,683.,-155,59, N,753.,-266,60, L-5S 5 MAIN LANES, 4 N,-325.,1419,14, N,461.,160,55, N,664.,-167,59, N,734.,-248,60, B-LOT 1-3, 1, 2, 0 ,0 1026.,983,106,112, 947.,977,106,112, 937.,984,100, 106, 898.,984,100, 106, 794.,978,100, 106, 787.,984,96,102, 765.,982,96,102, 735.,982,96,102, 734.,929,96,102, 811.,840,96,102, B-LOT 4-7, 2, 2, 0 ,0 728.,937,93,99, 612.,938,89,95, 591.,936,89,95, 588.,932,89,95, B-LOT 9-13, 3, 2, 0 ,0 557.,698,90,96, 555.,597,90,96, 581.,563,90,96, 614.,563,91,97, 674.,563,91,97, 689.,570,91,97, 696.,566,91,97, 723.,563,91,97, 735.,568,95,101, 814.,559,94,100, B-CDS BARRIER, 4 , 2 , 0 ,0 475.,815,90,96, 470.,804,85,91, 459.,785,85,91, 458.,753,85,91, 462.,738,85,91, 481.,720,85,91, 536.,714,85,91, 557.,698,91,97, B-CALTRANS, 5, 2, 0,0 565.,550,83,93, 719.,336,83,93, 790.,245,84,94, B-5N BERM, 6 , 1 , 0 ,0 565.,550,84,84, 441.,730,84,84, 290.,941,81,81, 168.,1126,78,78, B-LOT 14,7, 2, 0,0 814.,559,94,100, ,,.. S75.,555,95,101, 888.,553,95,101, 976.,550,9S,104, B-LOTS, S, 2, 0,0 588.,932,90,96, 476.,927,90,96, 475.,815,90,96, B-Lot 12-13 west, 9 , 2 , 0 ,0 736.,699,95,101, 735.,568,95,101, B-Median, 10 , 2 , 0 ,0 -284.,1444,14,1S, 500.,183,55,59, 702.,-141,59,63, 773.,-251,60,64, R, 1,65,10 976,956,121.,LOT 1 R,2,65,10 S34,959,115.,LOT 2 R,3,65,10 753,965,111.,LOT 3 R, 4, 65,10 735,890,106.,LOT 4 R,5,65,10 672,917,104.,LOT 5 R,6,65,10 610,91S,104.,LOT 6 R, 7,65,10 550,914,103.,LOT 7 R,S,65,10 493,911,103.,LOT S R, 9, 65,10 SS5,600,103.,LOT 9 R, 10,65,10 640,590,103.,LOT 10 R, 11,65,10 700,587,104.,LOT 11 R, 12,65,10 748,669,109.,LOT 12 R, 13,65,10 744,59S,110.,LOT 13 R, 14,65,10 969,582,111.,LOT 14 R, 15,65,10 969,670,111.,LOT 15 R, 16,65,10 905,733,113.,LOT 16 R, 17' 65,10 · 96S,733,116.,LOT 17 c,c SOUND32 -RELEASE 07/30/91 TITLE: MILES TM SECOND LEVEL REC REC ID DNL PEOPLE LEQ(CAL) 1 LOT 1 65. 10. 62.7 2 LOT2 65. 10. 63.5 3 LOT3 65. 10. 64.0 4 LOT4 65. 10. 62.4 5 LOTS 65. 10. 64.3 6 LOT6 65. 10. 65.2 7 LOT? 65. 10. 66.1 SLOTS 65. 10. 67.4 9 LOT9 65. 10. 74.4 10 LOT 10 65. 10. 70.S 11 LOT 11 65. 10. 68.3 12 LOT 12 65. 10. 65.S 13 LOT 13 65. 10. 68.0 14 LOT 14 65. 10. 65.6 15 LOT 15 65. 10. 62.4 16 LOT 16 65. 10. 62.3 17 LOT 17 65. 10. 62.2