Abstract
The impact of aviation on the environment has been at the center of attention recently, and thus, the need to assess the impact of air transportation emissions on the environment is evermore present. This paper presents the continuation of research efforts on a Fleet-Level Environmental Evaluation Tool (FLEET) that assesses the fleet-wide environmental impact of future aircraft concepts and technologies while also considering economics and operational decisions of airlines. Specific improvements to FLEET from previous presented papers consist of a larger network of operations that includes international passenger travel, an updated aircraft retirement and delivery schedule, and a set of future aircraft that meet the NASA Sub-sonic Fixed Wing Project emissions and noise goals. Example analysis results reflect key relationships between emission levels, passenger demand, ticket price, and aircraft technology over a period of several years.
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