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

摘要

The increasing demand for air travel haspropelled R&D projects in a global scale toinvestigate new solutions to enhance theefficiency of the current air transportationsystem. Dynamic Airborne Reroute Procedures(DARP) is one of the strategies implemented inoceanic arrivals to the Tokyo metropolitan areaas a part of the CARATS project proposed by theJapan Civil Aviation Bureau. DARP provideslateral route alteration capability while 4Dtrajectorybased operations (4D-TBO) isconsidered to be critical in meeting futurechallenges in the aviation industry. This paperprovides a framework to investigate the benefitsthrough DARP procedures in the conventionaloperations and potential benefits throughintroducing 4D- TBO procedures to oceanicoperations in an ideal operational environment.A series of DARP implemented data provided bya national airline is used to quantitativelyevaluate the aircraft performance, mainly fuelconsumption and flight range. Reference tracksare generated based on flight plans, positiondata and radar data and DARP data. Resultsshow that dynamic re-routing can produce fuelsaving benefits for airline operators.Furthermore, trajectory optimization proves tobe a potential enhancement for DARP operationsin oceanic operations as the optimizer was ableto reduce 5 ~ 17% of fuel consumption throughreducing flight range and selecting optimalaltitude compared to DARP operated tracks.