Environmental Design Space (EDS)

EDS is a numerical simulation that is capable of estimating source noise, exhaust emissions, and performance for potential future aircraft designs under different technological, operational, policy, and market scenarios. While the primary focus of EDS is future aircraft designs (which includes technology modifications to existing aircraft), EDS is capable of analyzing existing aircraft designs (current technology levels), including the simulation of existing aircraft with higher fidelity than is possible using existing noise and emissions tools and inventories. EDS is linked to the Aviation Environmental Tools Suite by providing validated existing and future aircraft design characteristics to the Aviation Environmental Design Tool (AEDT) and the Aviation environmental Portfolio Management Tool – Economics (APMT-E).


EDS was developed for use in considering US Next Generation Air Transportation System (NextGen) scenario analyses and to support the future International Civil Aviation Organization (ICAO) Committee on Aviation Environmental Protection (CAEP) analyses. EDS is currently supporting the assessment of technology development funded under the FAA Continuous Lower Energy, Emissions, and Noise (CLEEN) program to quantify the system wide fuel burn, noise, and emissions impact of associated technologies. EDS was extensively used in the CAEP/9 work cycle during the development of the aircraft CO2 standard metric system development. Additionally, EDS is used to support the design and assessment of advanced aircraft and engine concepts in support of NASA. EDS is intended for use in conjunction with both APMT and AEDT.


The core modules of EDS, originally developed by NASA, were formalized into what is now known as EDS under the Partnership for Air Transportation Noise and Emissions Reduction (PARTNER) Center of Excellence. The EDS Development Team consisted of the Georgia Institute of Technology under the sponsorship of the FAA, Transport Canada, and NASA through PARTNER. Ongoing development of EDS is under the sponsorship of the NASA Aeronautics Research Mission Directorate.


U.S. government use of EDS is through the FAA Office of Environment and Energy. There are currently no plans to release EDS to the general public.