AF Plant 42 AICUZ Study - Feb. 2012 - Edwards Air Force Base

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Community Noise Equivalent Level (CNEL) this report also presents predicted noise exposure in terms of CNEL for use in planning efforts undertaken within that state. However, the DoD and Air Force AICUZ program make land use recommendations based on DNL, not CNEL. Note that both DNL and CNEL measurement levels yield very similar noise contours. 1.2 Process and Procedure Preparation and presentation of this update to Plant 42’s AICUZ study is part of the continuing Air Force participation in the local planning process. It is recognized that the Air Force has an ongoing responsibility for providing current information on its activities that potentially affect the community. As local communities prepare and periodically revise land use plans and zoning ordinances, Plant 42 presents this study in the spirit of mutual cooperation and respect with the intent of assisting in the local land use planning process. This AICUZ study reaffirms Air Force policy of promoting public health, safety, and general welfare in areas surrounding Plant 42. Aircraft operational data used in this study were collected at Plant 42, Edwards Air Force Base (AFB) and Channel Islands Air National Guard Base (ANGB) on Naval Air Station Point Magu in September and October 2010. The update presents and documents changes to the AICUZ for the period of 2002 to 2010 that result from changes to the mix of aircraft using Plant 42 (both transient and based) and from changes in operational intensity. Specifically, the Plant 42 has begun providing depot support and flight test for the B-2 bomber, engineering and flight test for the RQ-4 Global Hawk and B747-8, as well as the basing of NASA’s B747SP Stratospheric Observatory for Infrared Astronomy (SOFIA). Additionally, both 412 Flight Test Wing (Edwards AFB, California) and 146 Airlift Wing (California Air National Guard, Point Mugu Naval Air Station) use Plant 42 airspace and runways extensively to maintain pilot proficiency. Aircraft operations data were collected at Plant 42 in the fall of 2010, with modeling occurring during the winter of 2010-11 and final validation of data occurring in spring 2011. On-site interviews were performed to obtain aircraft operational and maintenance data. Using these data, average daily operations by runway and type of aircraft were derived. These data are supplemented by flight track information (where we fly), flight profile information (how we fly), and maintenance 1-4
engine runs occurring while the aircraft is stationary (static engine run-ups). After verification of accuracy, data were input into the NOISEMAP program (Version 7.353) and noise contours were calculated; the results are expressed in terms of DNL in dB(A) units. Actual day to day flight tracks of individual flights may vary as pilots may deviate somewhat from standard tracks. For modeling purposes, standard flight tracks are used. The resulting contours have been plotted on an area map and are presented in Chapter 3. Overlaid with the contours, clear zone and accident potential zone areas are shown. In addition, the Federal Aviation Administration (FAA) defined imaginary surfaces are depicted. These imaginary surfaces are designated to promote and maintain clear airspace for safe flight operations near the airfield. Objects that penetrate these surfaces are considered obstructions to air navigation. The sum of all three elements, (noise exposure, accident potential, and obstruction evaluation), constitute the AICUZ environs for a given airfield. An analysis of existing land uses, future land use, and current zoning is presented in Chapter 4. Appendix A of Volume II contains detailed information on the development of an AICUZ study. 1.3 Computerized Noise Exposure Models The Air Force developed and adopted the use of the NOISEMAP computer program to describe noise impacts created by aircraft operations. NOISEMAP is one of two EPA approved computer noise modeling for aircraft modeling; the other is the Integrated Noise Model (INM), used by the FAA for noise analysis at civil airports. The NOISEMAP and INM programs are similar; however, INM does not contain noise data for all military aircraft. NOISEMAP is a suite of computer programs and components developed by the Air Force to predict noise exposure in the vicinity of an airfield due to aircraft flight, maintenance, and ground run-up operations. The components of NOISEMAP are: BASEOPS is the input module for NOISEMAP and is used to enter detailed aircraft flight track, profile, and ground maintenance operational data. NOISEFILE is a comprehensive database of measured military and civil aircraft noise data. Aircraft operational information is matched with the noise measurements in the NOISEFILE after the detailed aircraft flight and ground 1-5
Page 1 and 2: TABLE OF CONTENTS 1.0 PURPOSE AND N
Page 3 and 4: No LIST OF FIGURES Figure 1-1. Palm
Page 5 and 6: ACRONYMS and ABBREVIATIONS AFB AFH
Page 7: AIR FORCE PLANT 42 CALIFORNIA C H A
Page 10 and 11: Figure 1-1. Palmdale California and
Page 14 and 15: maintenance operational data has be
Page 17 and 18: 2.0 INSTALLATION DESCRIPTION 2.1 Lo
Page 19 and 20: Table 2-1. Population and Projectio
Page 21 and 22: Figure 2-2. Airfield and Installati
Page 23 and 24: 2.3 History of Air Force Plant 42 P
Page 25 and 26: C-130 Hercules F-22 Raptor allows f
Page 27 and 28: Table 2-2. Total Employment by Indu
Page 29 and 30: Table 2-4. Average Busy-Day Aircraf
Page 31 and 32: The Federal Aviation Regulations go
Page 33 and 34: There are many occasions when an ai
Page 35 and 36: Figure 2-4. Runway 4/22 - Generaliz
Page 41 and 42: 2.6.4 Pre-Takeoff and Aircraft Main
Page 43: AIR FORCE PLANT 42 CALIFORNIA C H A
Page 46 and 47: accidents. DoD analyses have determ
Page 48 and 49: minimum flight altitudes are observ
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Page 52 and 53: 3-8 This page intentionally left bl
Page 58 and 59: Figure 3-4. Day-Night Average Sound
Page 60 and 61: 3000’ 5000’ 7000’ 3000’ RUN
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This page intentionally left blank
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Table 3-5. Land Use Compatibility,
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Table 3-5. Land Use Compatibility,
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4.0 LAND USE AND ANALYSIS 4.1 Intro
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Table 4-1. US Census Population Jur
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Figure 4-1. Existing Land Uses in t
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Figure 4-2. Existing Land Uses and
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4.2.1.1 Noise Zones In general term
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Table 4-3. Off Base Compatibility w
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Figure 4-3. Existing Land Uses, CZs
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Table 4-4. Off Base Land Use Acreag
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4.2.2 Current Land Use - City of La
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triangular portion east of 45 th St
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Figure 4-5. Detailed Parcel Zoning
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Figure 4-6. Generalized Zoning, Noi
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Council in 1993. The Palmdale Gener
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then in effect and it has been amen
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4.4 Future Land Use This section ex
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Figure 4-7. Generalized Future Land
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terms, that means preservation of t
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Plan in 2004 as required by state l
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Figure 4-8. Runway 4/22 Imaginary S
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Figure 4-10. Runway 4/22 Imaginary
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It is also important that the local
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Figure 4-12. AICUZ Environs Map Fig
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4.7 Summary As noted in the foregoi
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AIR FORCE PLANT 42 CALIFORNIA C H A
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and control the effects of such ope
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TABLE OF CONTENTS Page APPENDIX A T
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APPENDIX A—THE AICUZ CONCEPT, PRO
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A.4.1 Policy 1. In order to promote
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Each runway end at Plant 42 has a 3
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A.7 Noise Nearly all studies analyz
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APPENDIX B—CLEAR ZONES AND ACCIDE
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Figure B-1. Distribution of Air For
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B.4 Findings Designation of safety
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APPENDIX C—DESCRIPTION OF THE NOI
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position. This information is proce
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APPENDIX D HEIGHT AND OBSTRUCTIONS
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500' Above Airfield Elevation G 20:
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D.2 Other Hazards to Air Navigation
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APPENDIX E—NOISE LEVEL REDUCTION
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AF Plant 42 AICUZ Study - Feb. 2012 - Edwards Air Force Base

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