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Ribeiro, M.J. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)
Current predictions on future drone operations estimate that traffic density orders of magnitude will be higher than any observed in manned aviation. Such densities redirect the focus towards elements that can decrease conflict rate and severity, with special emphasis on airspace structures, an element that has been overlooked within...
journal article 2022
document
Ribeiro, M.J. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)
Current predictions for future operations with drones estimate traffic densities orders of magnitude higher than any observed in manned aviation. Such densities call for further research and innovation, in particular, into conflict detection and resolution without the need for human intervention. The layered airspace concept, where aircraft...
journal article 2022
document
Metz, I.C. (author)
Bird strike prevention in civil aviation has traditionally focused on the airport perimeter. Since the risk of especially damaging bird strikes outside the airport boundaries is rising, this PhD thesis researches the safety potential of operational bird strike prevention involving pilots and controllers. In such a concept, controllers would be...
doctoral thesis 2021
document
Dalmau, Ramon (author), Sun, Junzi (author), Prats, Xavier (author)
The vertical trajectory plan (altitude and speed) corresponding to the descent phase of a modern airliner is computed by the on-board flight management system while the aircraft is still in cruise. As long as the constraints on the arrival procedure allow, this system plans for an idle descent and the exact location of the (optimal) top of...
conference paper 2021
document
Sun, Junzi (author), Vû, Huy (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)
The availability of low-cost automatic dependent surveillance-broadcast (ADS-B) receivers has given researchers the ability to make use of large amounts of aircraft state data. This data is being used to support air transportation research in performance study, trajectory prediction, procedure analysis, and airspace design. However, aircraft...
journal article 2019
document
Sunil, E. (author), Hoekstra, J.M. (author), Ellerbroek, Joost (author), Bussink, F (author), Vidosavljevic, A (author), Nieuwenhuisen, D (author)
Airspace structure can be used as a procedural mechanism for a priori separation and organization of en-route air traffic. Although many studies have explored novel structuring methods to increase en-route airspace capacity, the relationship between the level of structuring of traffic and airspace capacity is not well established. To better...
conference paper 2016
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Sunil, E. (author), Hoekstra, J.M. (author), Ellerbroek, J. (author), Bussink, F. (author), Nieuwenhuisen, D. (author), Vidosavljevic, A. (author), Kern, S. (author)
Personal and unmanned aerial vehicles have received increasing media attention over the last decade. As a result of the growing excitement for these two aircraft types, many within and outside the aerospace industry envision a future in which large numbers of small aircraft fly over urban areas. With this vision for the future, the question...
conference paper 2015
document
Rahman, S.M.A. (author), Borst, C. (author), Mulder, M. (author), Van Paassen, M.M. (author)
This research investigates the use of Solution Space Diagram (SSD) as a measure of sector complexity and also as a predictor of performance and workload, focusing on the scenarios regarding Air Traffic Controller (ATCO)’s ability to detect future conflicts. A human-in-the-loop experiment with varying intercept angle within the same sector layout...
journal article 2015
document
Abdul Rahman, S.M.B. (author)
Various methods have been introduced in the past in efforts to optimize airspace sector design and the allocation of air traffic controllers. This is done with the aim to accommodate growth, increase productivity and most importantly to ensure safety of air traffic. To accomplish this, a more comprehensive understanding of human workload,...
doctoral thesis 2014
document
Brüggen, J. (author)
This millennium's Air Traffic Management (ATM) challenges can only be faced with a new paradigm for ATM research in Europe. The rising delays, the legitimate concerns over ATM safety (collision risk) in the air as well as on the ground and the growing environmental pressure necessitates the review of ATM R&D performance in Europe and the...
report 2002
document
De Neef, R.M. (author), Van Paassen, M.M.R. (author)
conference paper 2001
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Vormer, F.j.p. (author), Mulder, M. (author), Van Paassen, M.M.R. (author)
conference paper 2000
document
Michiels, R.W.F.J. (author)
This document describes the Client/Server system architecture of NARSIM - the NLR Air Traffic control Research Simulator- focussing on the socalled middleware: the infrastructure that enables all the seperate parts of the simulator to interact with each other. To show the full scope of the architecture, first a somewhat abstract architecture...
report 1996
document
Hoogeboom, P.J. (author)
From recorded Distance Measurement Equipment (DME) data during Microwave Landing System (MLS) flight trials performed at London Gatwick Airport (April 21 - 26, 1989) using the NLR Fairchild Metro II Laboratory Aircraft, the position of the aircraft was determined by post-processing and compared with the MLS- and ILS-derived positions. This...
report 1990
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van Gool, M.F.C. (author), Hoogeboom, P.J. (author)
In July, 1988, flight trials have been performed on the newly installed MLS equipment at Manchester Airport (UK), using one of the laboratory aircraft of NLR, a Fairchild Metro II with programmable avionics systems including a basic MLS receiver as an "Avionics Research Testbed". The aim of the tests was to prove that aircraft with basic IFR...
report 1989
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Moek, G. (author)
The problem of estimating the probability of vertical overlap in possible future airway systems with a vertical separation standard of 1000 ft above Flight Level 290 is addressed. It forms part of an overall safety assessment of such potential systems. The problem is solved by developing a mathematical probability model of the vertical distance...
report 1988
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Pool, A. (author)
This lecture reviews the model studies that were made with the object to reduce en-route separation standards. It also describes the basic principles of the Reich model used in most of these studies and of the Minimum Navigation Performance Specification (MNPS). Paper presented at the Princeton University Conference 155, "Safety Issues in Air...
report 1983
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Blom, H.A.P. (author)
A sophisticated starting point for a probabilistic approach to the radar tracking problem is a Markov jump-diffusion model for the aircraft dynamics, its control and the radar measurements. From nonlinear filtering theory, a closed form description of the evolution of the conditional distribution of this Markov process can be obtained. This jump...
report 1983
document
Abbink, F.J. (author)
Modern avionics are an integral part of the aircraft. They provide the functions of communication, navigation, energy management, identification, weather, terrain, and collision avoidance, the presentation of flight and warning data as well as aircraft guidance and stabilization. New developments in micro-electronics and display technology...
report 1980
document
van der Wilt, M. (author)
The capacity of runways in use for landing aircraft may become the chief bottleneck of the capacity of airports. This runway capacity may result in long queues of aircraft waiting for landing, which in its turn results in unacceptable delays. Two analytic methods to determine these delays are described and the results are compared. The two...
report 1977
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