In a marked change in longtime Federal Aviation Administration (“FAA”) policy regarding analysis of noise and air quality impacts from FAA initiated, directed or funded projects, FAA has substituted a single new model for the long mandated Integrated Noise Model (“INM”) and Emissions and Dispersion Modeling System (“EDMS”). Beginning May 29, 2015, FAA policy “requires” the use of the Aviation Environmental Design Tool version 2b (“AEDT 2b”), which integrates analysis of aircraft noise, air pollutant emissions, and fuel burn. These impacts, according to FAA are “interdependent and occur simultaneously throughout all phases of flight.” 80 Fed.Reg. 27853.
In both the Record of Decision (ROD) and the Final Environmental Impact Statement (FEIS) for the New York/New Jersey/Philadelphia Airspace Redesign, the FAA states that there will be a decrease in emissions from aircraft as a result of the airspace redesign because the aircraft will burn less fuel. To support this theory, the FAA relies upon a cobbled-together "Fuel Burn Analysis" that is nowhere to be found in any of the FAA’s orders or procedures.
However, even with the ginned-up fuel burn analysis, it is now becoming apparent that there may be no savings in fuel to be derived from instituting the Airspace Redesign’s preferred alternative. Using the information provided in the Appendix R of the Final Environmental Impact Statement and the TAAM output files that were included in the Administrative Record as document 9285, Clean Air Act consultant Dan Meszler, of Meszler Engineering Services, concluded that the "Preferred Alternative" would seemingly increase fuel consumption.
On the following page is an excerpt from Mr. Meszler’s Report, along with a table showing the differences between fuel consumption reported in the FEIS and fuel consumption based on the TAAM data that was included in the Administrative Record.