In four new research papers, we assess vertical efficiency, sequencing and separation, with the aim of recommending new metrics to help ANSPs analyse current arrival operations in TMA and prepare for the deployment of new route structures and operating methods.
The latest developments have been presented at the FAA-EUROCONTROL ATM R&D Seminar in Vienna and at the AIAA Aviation Forum in Dallas, with four papers in total.
The objective is to portray current operations, identify best practices, potential inefficiencies and improvement areas, and assess the impact of potential changes on future operations.
For vertical efficiency, to assess the potential for improvement, the papers consider the vertical deviations to best descent profiles of each airport, in relation with the additional time (level of congestion). For the top four European airports in a 50NM radius area and for more than 200,000 flights, the key results are:
- profiles are generally 2,300ft below the best corresponding profile (median vertical deviation);
- some profiles may be 4,300ft below the best corresponding profile for a same additional time (95th percentile).
One of the papers presented in Vienna reveals a significant variability of vertical efficiency among airports. For instance, below FL70 and at high congestion levels, London-Heathrow shows constant performances while Amsterdam Schiphol shows significant variability.