Supporting executive inbound flight sequencing: improving Expected Approach Time adherence
A. Măgdălinoiu (TU Delft - Aerospace Engineering)
C Borst – Mentor (TU Delft - Control & Simulation)
Max Mulder – Mentor (TU Delft - Control & Simulation)
M. M.(René) van Paassen – Mentor (TU Delft - Control & Simulation)
Ferdinand Dijkstra – Mentor (Air Traffic Control The Netherlands)
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Abstract
An important bottleneck in managing inbound traffic capacity is the limited size of the Terminal Manoeuvring Area, which should not become crowded by aircraft arriving from the Control Area. This is done by arrival metering, a process entailing sending aircraft through the Initial Approach Fix (IAF) at pre-established Expected Approach Times (EAT). Currently, area controllers are required to deliver aircraft at the IAF at their EAT ± 120 seconds. Reducing this window in the near future would allow for less buffer times between aircraft to increase capacity, potentially allowing implementation of time-based separation at the IAF as an initial step towards trajectory based operations. This research aims to produce a visual decision support tool to aid the aircraft sequencing process and achieving EAT adherence at the IAF, that is compatible with the currently in use or upcoming systems used in the Amsterdam Area Control Center. To avoid significant changes to the modus operandi of controllers, the aim is to show the user the operational constraints and focus on expediting traffic. An experiment was conducted with eight professional controllers to compare the newly developed tool with a rendition of the current interface. The results are positive, indicating less deviation from the EATs in all participants and overall lower participant workload as a result of using the proposed decision support tool.
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File under embargo until 01-11-2026