Integrated Noise Model (INM), version 5.1 : technical manual

Details

• Alternative Title:
  INM 5.1 technical manual
• Creators:
  Fleming, Gregg G. ; Olmstead, J. R. ; D'Aprile, J. ; Gerbi, P. ; Gulding, J. ; Plante, J. A.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.). Acoustics Facility ; United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy
• Subject/TRT Terms:
  • Airport noise
  • Computer models
  • Heliports
  • Noise
  • Measurement
  • Manuals
  • Airport noise
  • Computer model
  • Noise contours
  • Integrated Noise Model
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• Publication/ Report Number:
  FAA-AEE-97-04
• Resource Type:
  Manual
• Geographical Coverage:
  United States
• Edition:
  Final Jan 93 - Dec 97
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration
• Abstract:
  The Federal Aviation Administration, Office of Environment and Energy (FAA, AEE-120) ; has developed Version 5.1 of the Integrated Noise Model (INM) with support from the ; John A. Volpe National Transportation Systems Center, Acoustics Facility (Volpe Center) ; for development of the acoustic computation module and from the ATAC Corporation for ; systems integration, development of the graphical interface, and methods for computing ; aircraft flight profiles and constructing flight paths, which are processed by the ; acoustics module. ; The Technical Manual for INM 5.1 describes the flight-path methodology (Chapter 2), ; along with the basic methodology employed by the INM to compute a noise-level or timeabove ; metric at a single, user-specified observer, or at an evenly-spaced, regular grid ; of observers (Chapter 3). ; The noise/time computation methodology is presented in a concise step-by-step fashion, ; and includes a description of: (1) the computation of the flight-segment geometric and ; physical parameters; (2) the flight-segment noise-level interpolation process; (3) the ; acoustic impedance adjustment; (4) the flight-segment noise-fraction adjustment for ; exposure-based metrics; (5) the airspeed adjustment for exposure-based metrics; (6) the ; lateral attenuation adjustment; (7) the ground-based directivity adjustment for ; observers behind start-of-takeoff-roll, as well as for computing metrics associated ; with runup operations; (8) the metric computation process; and (9) the development of a ; recursively-subdivided irregular grid methodology, which is used for computing noise ; contours (Chapter 4).
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• Format:
  PDF
• Funding:
  FA765/A7012 ; DTFA01-93-C-00078, Task Orders 9,14,19
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8962/dot_8962_DS1.pdf
• File Type:
  [PDF - 355.24 KB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha-512:a1c3787daed398368b4a61391883d42cfe228fa177c6ef7ac11592ea3c3e3925bb346da7a4adb47a7ac80c0c8f8cdb7c2a679ac93a7a21d2558bafda11ad55de