BENEFITS ASSESSMENT ON TIME-BASED OCEANIC ARRIVALS TO THE TOKYO METROPOLITAN AREA

摘要

The increasing demand for air travel has propelled R&D projects in a global scale to investigate new solutions to enhance the efficiency of the current air transportation system. Dynamic Airborne Reroute Procedures (DARP) is one of the strategies implemented in oceanic arrivals to the Tokyo metropolitan area as a part of the CARATS project proposed by the Japan Civil Aviation Bureau. DARP provides lateral route alteration capability while 4Dtrajectory based operations (4D-TBO) is considered to be critical in meeting future challenges in the aviation industry. This paper provides a framework to investigate the benefits through DARP procedures in the conventional operations and potential benefits through introducing 4D- TBO procedures to oceanic operations in an ideal operational environment. A series of DARP implemented data provided by a national airline is used to quantitatively evaluate the aircraft performance, mainly fuel consumption and flight range. Reference tracks are generated based on flight plans, position data and radar data and DARP data. Results show that dynamic re-routing can produce fuel saving benefits for airline operators. Furthermore, trajectory optimization proves to be a potential enhancement for DARP operations in oceanic operations as the optimizer was able to reduce 5 ~ 17% of fuel consumption through reducing flight range and selecting optimal altitude compared to DARP operated tracks.