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HomeMy WebLinkAboutCT 02-14; Bressi Ranch Residential; Tentative Map (CT) (16)PRELIMINARY EXTERIOR ROADWAY NOISE ANALYSIS FOR BRESSI RANCH PA-4, PA-13, AND PA-14 CITY OF CARLSBAD Report #00-97 April 13, 2000 Prepared For: Hofman Planning Associates 5900 Pasteur Court, Suite 150 Carlsbad, CA 92008 Prepared By: Vince Mestre, P.E. Mike Holritz Mestre Greve Associates 280 Newport Center Drive, Suite 230 Newport Beach, CA 92660-7528 Phone (949) 760-0891 FAX (949) 760-1928 Mestre Greve Associates Report #00-97 Page 2 of 9 PRELIMINARY EXTERIOR ROADWAY NOISE ANALYSIS FOR BRESSI RANCH PA-4, PA-13, AND PA-14 CITY OF CARLSBAD 1.0 INTRODUCTION The purpose of this report is to provide preliminary noise barrier heights for Bressi Ranch in the City of Carlsbad. This report provides a preliminary determination of exterior mitigation measures necessary for first floor exterior areas to meet the 60 CNEL exterior noise standard. Site plan information was taken from the grading plans for the project provided by Project Design Consultants, and dated February 25, 2000. The project is located in the City of Carlsbad, as shown in Exhibit 1. The project will be impacted by traffic noise from El Fuerte Street. (This analysis is intended to address roadway noise only. Any potential aircraft noise impacts can be addressed in a future report if necessary). The report only addresses some areas of Bressi Ranch (PA-4, PA-13, and PA-14). Other adjacent areas shown on some of the exhibits are not a part of this project. 2.0 CITY OF CARLSBAD NOISE STANDARDS The City of Carlsbad specifies outdoor and indoor noise limits for residential land uses. The standards are based upon the CNEL index. CNEL (Community Noise Equivalent Level) is a 24- hour time weighted annual average noise level based on the A-weighted decibel. A-weighting is a frequency correction that correlates overall sound pressure levels with the frequency response of the human ear. Time weighting refers to the fact that noise that occurs during certain noise- sensitive time periods is given more significance because it occurs at these times. In the calculation of CNEL, noise occurring in the evening time period (7 p.m. to 10 p.m.) is weighted by 5 dB, while noise occurring in the nighttime period (10 p.m. to 7 a.m.) is weighted by 10 dB. These time periods and weighting factors are used to reflect increased sensitivity to noise while sleeping, eating, and relaxing. The City of Carlsbad has adopted an exterior noise standard of 60 CNEL for a 5 foot tall observer. In addition , the city has an indoor noise standard of 45 CNEL. Project site. MELROSE DRIVE OINSETVA LANE MESTRE GREVE ASSOCIATES Exhibit 1 - Vicinity Map Mestre Greve Associates Report #00-97 Page 3 of 9 3.0 METHODOLOGY The traffic noise levels projected in this report were computed using the Highway Noise Model published by the Federal Highway Administration ("FHWA Highway Traffic Noise Prediction Model", FHWA-RD-77-108, December 1978). The FHWA Model uses traffic volume, vehicle mix, vehicle speed, and roadway geometry to compute the "equivalent noise level". A computer code has been written which computes equivalent noise levels for each of the time periods used in CNEL. Weighting these noise levels and summing them results in the CNEL for the traffic projections used. Mitigation through the design and construction of a noise barrier (wall, berm, or combination wall/berm) is the most common way of alleviating traffic noise impacts. The effect of a noise barrier is critically dependent upon the geometry between the noise source, the barrier, and the observer. A noise barrier effect occurs when the "line of sight" between the noise source and the observer is interrupted by the barrier. As the distance that the noise must travel around the noise barrier increases, the amount of noise reduction increases. The FHWA model was also used here in computerized format to determine the required barrier heights. 4.0 NOISE EXPOSURE The future traffic volumes used for El Fuerte were obtained the traffic study prepared for the project. Two scenarios have been analyzed. The first scenario is the "Year 2020 Bressi Ranch Project As Submitted" alternative. The second scenario is the "Year 2020 City Alicante Drive" alternative, which proposes a four-lane road between Poinsettia Drive and Palomar Airport Road, and a full intersection at Palomar Airport Road. The traffic volumes, vehicle speeds, and roadway grades used for each scenario in the CNEL calculations are presented in Table 1. Mestre Greve Associates Report #00-97 Page 4 of 9 Table 1 FUTURE TRAFFIC VOLUMES, SPEEDS, AND ROADWAY GRADES ROADWAY TRAFFIC VOLUME SPEED GRADE Year 2020 Bressi Ranch Project As Submitted El Fuerte Street (northern portion) 11,000 45 5.8% El Fuerte Street (southern portion) 8,000 45 5.8% Year 2020 City Alicante Road El Fuerte Street 10,000 45 5.8% The traffic distribution which was used in the CNEL calculations is presented in Table 2. The arterial traffic distribution estimate used for El Fuerte Street was compiled by the Orange County Environmental Management Agency, and is based on traffic counts at 31 intersections throughout the Orange County area. Arterial traffic distribution estimates can be considered typical for arterials in Southern California. c Mestre Greve Associates Report #00-97 Page 5 of 9 Table 2 TRAFFIC DISTRIBUTION PER TIME OF DAY IN PERCENT OF ADT VEHICLE TYPE DAY EVENING NIGHT Automobile Medium Truck Heavy Truck 75.51 1.56 0.64 12.57 0.09 0.02 9.34 0.19 0.08 Using the assumptions presented above, the future noise levels were computed. The results are listed in Table 3 in terms of distances to the 60, 65, and 70 CNEL contours. These represent the distances from the centerline of the roadway to the contour value shown. The projections are based upon the CALVENO curve, and do not include any future vehicle noise reduction assumptions. Note that the values given in Table 3 do not take into account the effect of intervening topography that may affect the roadway noise exposure. Table 3 DISTANCE TO NOISE CONTOURS FOR FUTURE TRAFFIC CONDITIONS ROADWAY SEGMENT DISTANCE TO CONTOUR (FT) -70 CNEL- -60 CNEL- -60 CNEL- Year 2020 Bressi Ranch Project As Submitted El Fuerte Street (northern portion) 32 70 150 El Fuerte Street (northern portion) 26 56 121 Year 2020 Citv Alicante Road El Fuerte Street 30 65 141 The results in Table 3 and the site plan indicate that first floor exterior observers along El Fuerte Street would be exposed to a maximum unmitigated traffic noise level of about 66.7 CNEL. El Camino Real El Fuerte Street Poinsettia Lane MESTRE GREVE ASSOCIATES Exhibit 2 -Site Plan Mestre Greve Associates Report #00-97 Page 6 of 9 5.0 EXTERIOR NOISE MITIGATION The exterior areas must comply with the City's 60 CNEL exterior noise standard. For the exterior living areas which are exposed to noise levels greater than 60 CNEL, some form of noise mitigation is required. An effective method of reducing the traffic noise to acceptable levels is with a noise barrier. Representative cross-in the project (see Appendix for analysis data) were analyzed utilizing the FHWA Model to determine the necessary noise barrier locations and heights. The results of the analysis indicate that in order to meet the 60 CNEL exterior noise standard, noise barriers will be required for a number of homes along El Fuerte Street. The preliminary required noise barriers are listed in Table 4. The preliminary required noise barriers for the "Year 2020 Bressi Ranch Project As Submitted" alternative are shown in Exhibit 3, Exhibit 4, and Exhibit 5 ; and the preliminary required noise barriers for the "Year 2020 City Alicante Drive" alternative are shown in Exhibit 6, Exhibit 7, and Exhibit 8. (PA-4 is a combination school and community facilites land use. The barriers at PA-4 are only required for the portion that is chosen as the school site). Table 4 REQUIRED FIRST FLOOR EXTERIOR LIVING AREA NOISE BARRIER HEIGHTS AND LOCATIONS BARRIER HEIGHT (FT) Cross Section A B C D El E2 F G Bressi Ranch As Submitted Alternative 4.0' to 5.0' 3.5' to 4.5' 5.0' to 6.0' 3.5' to 4.5' 3.0' to 4.0' 5.0' to 6.0' 3.0' to 4.0' 5.0' to 6.0' City Alicante Road Alternative 4.0' to 5.0' 3.5' to 4.5' 5.5' to 6.5' 3.5' to 4.5' 3.0' to 4.0' 5.5' to 6.5' 3.5' to 4.5' 5.0' to 6.0' Grading plans are very preliminary at this time. The preliminary noise barriers are shown in terms of a range of barrier heights at each location. The final required noise barrier locations and heights to meet the 60 CNEL exterior noise standard will need to be determined in a future study, when more precise grading plans with elevations for each of the residential lots are available. Approximate Wall Height 4.0' to 5.0' . ./ /. /£/. / Approximate Wall Height 3.5' to 4.5' V BARRIER LOCATIONS height above top-of-slope MESTRE GREVE ASSOCIATES Exhibit 3 - Barriers Required to Meet the 60 CNEL Exterior Noise Standard at PA-13 (Year 2020 Project As Submitted) Approximate Wall Height 5.0' to 6.0' Approximate Wall Height 3.5' to 4.5' Approximate Wall Height 3.0' to 4.0' Approximate Wall Height 5.0' to 6.0' ;W. BARRIER LOCATIONS height above top-of-slope MESTRE GREVE ASSOCIATES Exhibit 4 - Barriers Required to Meet the 60 CNEL Exterior Noise Standard at PA-4 (Year 2020 Project As Submitted) I^f^i^f,-. '/ ''/;---.. Approximate Wall Height 3.0' to 4.0' /',-S. / •'• J ..-^ 1 Approximate Wall Height 5.0' to 6.0'*&'vm^ BARRIER LOCATIONS height above top-of-slope MESTRE GREVE ASSOCIATES Exhibit 5 - Barriers Required to Meet the 60 CNEL Exterior Noise Standard at PA-14 (Year 2020 Project As Submitted) Approximate Wall Height BARRIER LOCATIONS height above top-of-slope MESTRE GREVE ASSOCIATES Exhibit 6 - Barriers Required to Meet the 60 CNEL Exterior Noise Standard at PA-13 (Year 2020 City Alicante) Approximate Wall Height 5.5' to 6.5' \ ••'• .\ N V \ .'A Approximate Wall Height 3.5' to 4.5' Approximate Wall Height 3.0' to 4.0' I / ' 111 Approximate Wall Height 5.5' to 6.5' BARRIER LOCATIONS height above top-of-slope MESTRE GREVE ASSOCIATES Exhibit 7 - Barriers Required to Meet the 60 CNEL Exterior Noise Standard at PA-4 (Year 2020 Project City Alicante) BARRIER LOCATIONS height above top-of-slope MESTRE GREVE ASSOCIATES Exhibit 8 - Barriers Required to Meet the 60 CNEL Exterior Noise Standard at PA-14 (Year 2020 City Alicante) Mestre Greve Associates Report #00-97 Page 7 of 9 The noise barriers may consist of a wall, a berm, or a combination of the two. The noise barriers must have a surface density of at least 3.5 pounds per square foot, and shall have no openings or gaps. The wall may be constructed of stud and stucco, 3/8 inch plate glass, 5/8 inch plexiglass, any masonry material, or a combination of these materials. The first floor exterior living areas are projected to meet the 60 CNEL outdoor noise standard with the noise barriers specified in this report. Balconies six feet deep or more are considered exterior living areas, and must also meet the 60 CNEL exterior noise standard. If balconies are planned for the project, balcony barriers may be required for a number of homes along El Fuerte Street. Any balcony barriers required will need to be determined in a future study, when architectural drawings for the project are available, and prior to the issuance of building permits. 6.0 INTERIOR NOISE LEVELS The project must comply with the City of Carlsbad indoor noise standard of 45 CNEL. To meet the interior noise standard, the buildings must provide sufficient outdoor to indoor building attenuation to reduce the noise to acceptable levels. The outdoor to indoor noise reduction characteristics of a building are determined by combining the transmission loss of each of the building elements which make up the building. Each unique building element has a characteristic transmission loss. For residential units, the critical building elements are the roof, walls, windows, doors, attic configuration and insulation. The total noise reduction achieved is dependent upon the transmission loss of each element, and the surface area of that element in relation to the total surface area of the room. Room absorption is the final factor used in determining the total noise reduction. With the exterior mitigation measures specified in Section 5.0, first floor exterior building surfaces will be exposed to noise levels of less than 60 CNEL, and therefore will require less than 15 dB exterior to interior noise reduction in order to meet the City's 45 CNEL interior noise standard. With construction practices common in California, residential buildings achieve outdoor to indoor noise reductions of at least 15 dB. Therefore, with the exterior mitigation measures specified previously, all first floor rooms are projected to meet the City's 45 CNEL interior noise standard without building upgrades. Based upon a 20' building setback, second floor exterior building surfaces are projected to be exposed to a maximum noise level of about 65.0 CNEL, and therefore will require at least 20.0 dB exterior to interior noise reduction in order to meet the City's 45 CNEL interior noise standard. Detailed engineering calculations are needed for building attenuation requirements greater than 20 dB. A future study will be needed to address the interior noise levels when architectural drawings are available, and prior to the issuance of building permits. W Mestre Greve Associates Report #00-97 Page 8 of 9 7.0 MECHANICAL VENTILATION Since the noise attenuation of a building falls to about 12 dB with windows open, all homes exposed to noise levels greater than 57 CNEL will meet the 45 CNEL interior noise standard only with windows closed. In order to assume that windows can remain closed to achieve this required attenuation, adequate ventilation with windows closed must be provided per the applicable Uniform Building Code. This can be achieved with mechanical ventilation to provide fresh air. The fresh air inlet duct shall be of sound attenuating construction and shall consist of a minimum of ten feet of straight or curved duct, or six feet plus one sharp 90 degree bend. Preliminary indications are that mechanical ventilation will be required for the first row of homes along El Fuerte Street. Air conditioning units may be an adequate substitute for mechanical ventilation as long as they meet the ventilation requirements specified in the Uniform Building Code. The acceptability of using air conditioners to meet the mechanical ventilation requirement varies by municipality. The local jurisdiction and the mechanical engineer for the project should be consulted. c Mestre Greve Associates Report #00-97 Page 9 of 9 APPENDIX CALCULATION SPREADSHEETS DATA USED TO DETERMINE EXTERIOR NOISE LEVELS Preliminary Ex(erior Noise Analysis for Bressi Ranch, Carlsbad Hofman Planning - Elysian Mah 760-438-1465 REPORT #00-97 V1NCE / MIKE; April 2000 Date Roadway Name Vehicles Per Day Speed (mph) Grade Adj. (dB) Vehicle Noise Red (dB) Roadway Grade 4-12-00 El Fuerte Street 11,000 45 1.75 dB OdB 5.8% ADT from Bressi Ranch Traffic Sludy (Year 2020 Project as Submitted) (390-198) / 3300 Auto MT HT Day Eve Night Equiv. 75.51% 1.56% 0.64% 12.57% 0.09% 0.02% 9.34% 0.19% 0.08% 208.6% 3.7% 1 .5% CNEL PREDICTION WORKSHEET - CALVENO CURVE Last Update: 7/10/90-fg Modnxt and Improved by MH, 4-16-M o Auto Medium Truck Heavy Truck Total CNEL & Soft 66.0 56.8 59.1 67.3 1 5 meters Hard 67.2 58.4 60.3 68.5 FROM PRELIMINARY GP's To get other noise levels, Put in other distances (ft) Dist. Soft Hard 40 50 60 70 80 90 100 110 120 150 68.6 67.1 66.0 65.0 64.1 63.3 62.6 62.0 61.4 60.0 694 684 67.6 67.0 66.4 65.9 65.4 65.0 64.6 636 To get other distances (ft), Put in other noise levels CNEL Soft Hard 57 60 61 62 63 64 65 66 68 70 237 150 128 110 94 81 70 60 44 32 692 347 276 219 174 138 no 87 55 35 60 CNEL STANDARD Cross Road Distance Base Of Dist. To Pad Observer Section Elevation To Wall Wall Observer Elevation Height PLANNING AREA 13 A(riomii) 390 100 400 105 400 5 A 390 100.0 400 10S.O 400 5.0 A(bldgexp) 390 100 400 120 400 15 B (no mil) 380 115 400 120 400 5 8 380 115.0 400 120.0 400 5.0 B(bldgexp) 380 115 400 135 400 15 Wall Height 0.0 4.5 4.5 0.0 4.0 4.0 "Barrier Reduction" Auto MT HT 0.0 0.0 0.0 5.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.0 0.0 0.0 0.0 0.0 0.0 ++++ Soft Hard 62.3 66,2 58.6 6V.4 61.4 64:8 61.4 6« 58.3 61=5 60.7 64,1 ++++++ C/\ Road 2 EL++++ Aircraft t-+++++ TOTAL 62.3 (no mil) 58.6 6L4(bldgexp) 6 1.4 (no mil) 58.3 60.7 (bldg exp) Wall Specified 4.0' to 5.0' 3.5' to 4.5' O Preliminary Exterior Noise Analysis for Bressi Ranch, Carlsbad Hofman Planning - Elysian Mah 760-438-1465 REPORT #00-97 V1NCE/ MIKE; April 2000 Date Roadway Name Vehicles Per Day Speed (mph) Grade Adj. (dB) Vehicle Noise Red (dB) Roadway Grade 4-12-00 El Futne Street 8,000 45 1.75dB 0<IB 5.8% ADT from Bressi Ranch Traffic Study (Year 2020 Project as Submitted) (390-! 98) / 3300 Auto MT HT Day Eve Night Equiv. 75.51% 1 .56% 0.64% 12.57% 0.09% 0.02% 9.34% 0.19% 0.08% 208.6% 3.7% 1 .5% CNEL PREDICTION WORKSHEET - CALVENO CURVE Last Update: 7/1(V9O-fg Modflxl «nd Improved by MH, 4-16-M Auto Medium Truck Heavy Truck Total CNEL© Soft 64.6 55.5 57.8 65.9 1 5 meters Hard 65.8 57.0 59.0 67.1 FROM PRELIMINARY GP's To get other noise levels, Put in other distances (fl) To get other distances (ft), Put in other noise levels Dist. Soft Hard 40 50 60 70 80 90 100 110 120 150 67.2 65.8 64.6 63.6 62.7 61.9 61.2 60.6 60.1 58.6 680 670 662 656 650 64.5 64.0 636 632 62.3 CNEL Soft Hard 57 60 61 62 63 64 65 66 68 70 192 121 104 89 76 66 56 48 35 26 503 252 200 159 126 100 80 63 40 25 60 CNEL STANDARD Cross Road Distance Base Of Dist. To Pad Observer Section Elevation To Wall Wall Observer Elevation Height PLANNING AREA 4 C (nomit) 250 45 250 50 250 5 C 250 45.0 250 50.0 250 5.0 C(bldgexp) 250 45 250 65 250 15 D (no mil) 230 85 250 90 250 5 D 230 85.0 250 90.0 250 5.0 D (bldg exp) 230 85 250 105 250 15 El (nomit) 210 90 240 ' 95 240 S El 210 90.0 240 95.0 240 5.0 E1 (bldg exp) 210 90 240 110 240 15 ~E2 (nomit) 210 45 210 50 210 5 E2 210 45.0 210 50.0 210 5.0 E2(bldgexp) 210 45 210 65 210 15 PLANNING AREA 14 F(nomit) 202 50 202 55 200 5 F 202 50.0 202 55.0 200 5.0 F(bldgexp) 202 50 202 70 200 15 G(nomit) 198 55 200 60 200 5 G 198 55.0 200 60.0 200 5.0 G(bldgexp) 198 55 200 75 200 15 Wall Height 6.0 5.5 5.5 0.0 4.0 4.0 0.0 3.5 3.5 6.0 5.5 5.5 0.0 3.5 3.5 0.6 5.5 5.5 "Barrier Reduction" Auto MT HT ao 6.6 ad 6.0 5.5 5.0 0.0 0.0 0.0 0.0 676 6.6 4.8 5.0 0.0 0.0 0.0 0.0 6.6 6.6 6.6 4.7 5.0 0.0 0.0 0.0 0.0 ao 6.6 6.6 6.0 5.5 5.0 0.0 0.0 0.0 6.6 6.6 6.6 5.5 5.2 5.0 0.0 0.0 0.0o:e o;o o;o 6.1 5.8 4.9 0.0 0.0 0.0 ++++ Soft Hard 651 6TM3 60.0 61,3 64.1 65,9 61.9 64d5 58.3 66,8 60.9 638 61.6 &4 58.0 607 60.6 63,6 65.8 67J) 60.0 61,3 64.1 66£ "651 66,6 59.7 61,2 63.6 65,6 64.6 663 58.7 60,4 63.1 65,3 t+++++ Ct\ Road 2 EL++++- Aircraft t+++++ TOTAL 65.8 (nomit) 60.0 64.1 (bldgexp) 61. 9 (ho mil) 58.3 60.9 (bldg exp) 6 1.6 (no mil) 58.0 60.6 (bldg exp) 65.8 (no mit) 60.0 64.1 (bldg exp) 65.1 (no mil) 59.7 63.6 (bldg exp) 64.6 (no mil) 58.7 63.1 (bldg exp) Wall Specified 5.0' to 6.0' 3.5' to 4.5' 3.0' to 4.0' 5.0' to 6.0' 3.0' to 4.0' 5.0' to 6.0' Preliminary Exterior Noise Analysis for Bressi Ranch, Carlsbad Hofman Planning - Elysian Mah 760-438-1465 REPORT «00-97 VINCE/MIKE; April 2000 Date Roadway Name Vehicles Per Day Speed (mph) Grade Adj. (dB) Vehicle Noise Red (dB) Roadway Grade 4-12-00 El Fuerte Street 10.000 45 1.75dB OdB 5.8% ADT from Bressi Ranch Traffic Study < Year 2020 Cily Alicante Road Alternate (390-198) / 3300 Auto MT HT Day Eve Night Equiv. 75.51% 1 .56% 0.64% 12.57% 0.09% 0.02% 9.34% 0.19% 0.08% 208.6% 3.7% 1.5% CNEL PREDICTION WORKSHEET - CALVENO CURVE Last Update: 7/10/90-fg Modified and Improved by HH. 4-1C-M Auto Medium Truck Heavy Truck Total CNEL® Soft 65.6 56.4 58.7 66.8 1 5 meters Hard 66.8 58.0 59.9 68.1 FROM PRELIMINARY GP'S To get other noise levels, Put in other distances (ft) To get other distances (ft), Put in other noise levels Dist. Soft Hard 40 50 60 70 80 90 100 110 120 150 68.2 66.7 65.5 64.5 63.7 62.9 62.2 61.6 61.0 59.6 690 68.0 67.2 665 660 654 650 04.6 642 632 CNEL Soft Hard 57 60 61 62 63 64 65 66 68 70 223 141 121 103 89 76 65 56 41 30 629 315 251 199 158 126 100 79 50 32 o 60 CNEL STANDARD Cross Road Distance Base Of Dlst. To Pad Observer Section Elevation To Wall Wall Observer Elevation Height PLANNING AREA 13 A(nomit) 390 100 400 105 400 5 A 390 100.0 400 105.0 400 5.0 A(bldgexp) 390 100 400 120 400 15 B (no mil) 380 115 400 120 400 5 B 380 115.0 400 120.0 400 5.0 B (bldg exp) 380 115 400 135 400 15 PLANNING AREA 4 C(nomit) 250 45 250 50 250 5 C 250 45.0 250 50.0 250 5.0 C(bldgexp) 250 45 250 65 250 15 D(nomit) 230 85 250 90 250 5 D 230 85.0 250 90.0 250 5.0 D(bldgexp) 230 85 250 105 250 15 E1(nomit) 210 90 240 95 240 5 £1 210 90.0 240 95.0 240 5.0 El(bldgexp) 210 90 240 110 240 15 E2(nomit) 210 45 210 50 210 5 E2 210 45.0 210 50.0 210 5.0 E2(bldgexp) 210 45 210 65 210 15 PLANNING AREA 14 F(nomit) 202 50 202 55 200 5 F 202 50.0 202 55.0 200 5.0 F(bldgexp) 202 50 202 70 200 15 G(nomit) 198 55 200 60 200 5 G 198 55.0 200 60.0 200 5.0 G(bldgexp) 198 55 200 75 200 15 Wall Height 0.0 4.5 4.5 6.0 4.0 4.0 0.0 6.0 6.0 6.0 4.0 4.0 0.0 3.5 3.5 0.0 6.0 6.0 6.6 4.0 4.0 6.0 5.5 5.5 "Barrier Reduction" Auto MT HT "o.o 6.0 66 5.0 5.0 0.0 0.0 0.0 0.0 6.0 6.6 6.6 5.0 0.0 0.0 0.0 0.0 0.0 6.6 6.6 6.6 7.0 6.5 5.4 0.0 0.0 0.0 6.6 6.6 6:6 4.8 5.0 0.0 0.0 0.0 0.06:6 0:0 0:0 4.7 5.0 0.0 0.0 0.0 0.06.6 6.6 6"6 7.0 6.5 5.4p.o o.q ao 6.6 6.6 6:6 6.5 6.1 5.1 0.0 0.0 0.0 6:6 6.6 6.6 6.1 5.8 4.9 0.0 0.0 0.0 ++++ Soft Hard 61.9 648 58.2 61* 61.0 642 6T6 64:!! 57.9 61,1 60.3 6*7 66.7 M.O 60.0 61,3 65.0 66:8 62:9 66,4 59.3 618 61.9 648 62:6 66,2 59.0 616 61.6 646 66":'7 6ib 60.0 61,3 65.0 66.8 66.1 67:6 59.9 61,3 64.5 666""ess 67J 59.7 61,3 64.1 662 ++++++ Cl\ Road 2 EL+++-H Aircraft TOTAL 6T'9'(hbmJt) 58.2 61.0(bldgexp) 6i.6(nornit) 57.9 60.3 (bldg exp) 66.7 (no mil) 60.0 65.0 (bldg exp) 62.9 (no mil) 59.3 61. 9 (bldg exp) G2.8 -(no mil) 59.0 61. 6 (bldg exp) 66:7 (nbrriit) 60.0 65.0 (bldg exp) 66:i (nbmit) 59.9 64.5 (bldg exp) 65.5' (rib m») 59.7 64.1 (bldg exp) Wall Specified 4.0' to 5.0' 3.5' to 4.5' 5.5' to 6.5' 3.5' to 4.5' 3.0' to 4.0' 5.5' to 6.5' 3.5' to 4.5' 5.0' to 6.0'