USING FAA'S SAGE MODEL TO CONDUCT GLOBAL INVENTORIES AND TO ASSESS ROUTE-SPECIFIC VARIABILITY IN AVIATION FUEL BURN, EMISSIONS AND COSTS

摘要

The focus on optimizing aircraft fuel efficiency as well as interest in assessing aviation emissions inventories to measure the efficacy of efforts to limit or reduce aviation emissions worldwide has spurred a number of efforts in the U.S. and Europe to develop robust computer models capable of assessing aircraft emissions at local, regional, and global levels. The present contribution shows both a macro and micro level example of the types of analyses that the Federal Aviation Administration's (FAA) System for assessing Aviation's Global Emissions (SAGE) enables. On the macro level, examples are given of global inventory information computed using SAGE. In addition, a micro-level assessment of fuel burn, emissions and related costs associated with the 2995 nmi (Great Circle), New York (JFK)-to-London (EGLL) origin-destination (O-D) pair is provided. We highlight this O-D pair since: (1) it is an extremely popular trans-oceanic pair, with a large number of operations; (2) radar-based aircraft position data from FAA's Enhanced Traffic Management System are available for all flights hence enhancing the confidence of the analyses; and (3) a variety of aircraft (B747, B767 and B777), operated by several different international carriers are represented on this O-D pair, which highlights the versatility and robustness of the model. SAGE supports decision making to manage and mitigate aviation fuel consumption and emissions,thereby enabling the sustained growth of this critical mode of transportation.