inm_basics - Virginia Tech 1 of 27 INM Integrated Noise...

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Unformatted text preview: Virginia Tech 1 of 27 INM - Integrated Noise Model Basics CEE 5614 - Analysis of Air Transportation Systems Dr. Antonio A. Trani Associate Professor of Civil Engineering Virginia Tech Virginia Tech 2 of 27 Basics on INM • Developed by FAA Office of Energy and Environment and EPA • The initial versions of INM was developed in FORTRAN and ported to the PC in 1982 • Newest version is 6.0a (runs on Windows NT/95/98 OS) • The model includes a good database (101 aircraft currently) to analyze civilian airports • A similar model has been developed by the human factors group at Wright Patterson AFB to predict noise contours around military bases (NOISEMAP 6.1) Virginia Tech 3 of 27 Justification for INM • After 1969 every transportation project (including airport upgrades and plans) require a detailed environmental study • The only way to convey information to communities around an airport is to compute potential noise levels before constructing a facility • Noise prediction is a tedious process for real airports as there are too many aircraft and tracks that need to be analyzed in determining the noise at a point on the ground Virginia Tech 4 of 27 Inputs to INM • Airport characteristics (runways, orientation, etc.) • Approach and departure profiles + Procedural (aerodynamic based profiles) + Fixed point profiles • Flight tracks + Approach + Departure + Touch-and-go + Circling + Overflights Virginia Tech...
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inm_basics - Virginia Tech 1 of 27 INM Integrated Noise...

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