- document
-
Aarts, Michiel J.M. (author), Ellerbroek, Joost (author), Knoop, V.L. (author)The traffic density of small aerial vehicles operating within urban environments is expected to increase significantly in the near future. This urban environment is highly constrained due to being limited to the low-altitude airspace directly above the existing road network. Multiple studies have addressed factors influencing the capacity of...journal article 2023
- document
-
Patrinopoulou, Niki (author), Daramouskas, Ioannis (author), Badea, Calin Andrei (author), Morfin Veytia, A. (author), Lappas, Vaios (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author), Kostopoulos, Vassilios (author)Unmanned Aircraft Systems (UAS) Traffic Management (UTM) is an active research subject as its proposed applications are increasing. UTM aims to enable a variety of UAS operations, including package delivery, infrastructure inspection, and emergency missions. That creates the need for extensive research on how to incorporate such traffic, as...journal article 2023
- document
-
Morfin Veytia, A. (author), Badea, C. (author), Patrinopoulou, Niki (author), Daramouskas, Ioannis (author), Ellerbroek, Joost (author), Lappas, Vaios (author), Kostopoulos, Vassilios (author), Hoekstra, J.M. (author)The interest in urban air mobility as a potential solution for urban congestion is steadily growing. Air operations in urban areas can present added complexity as compared with traditional air traffic management. As a result, it is necessary to test and develop novel airspace designs and rules. As airspace in urban areas is a scarce resource,...journal article 2023
- document
-
Badea, C. (author), Morfin Veytia, A. (author), Patrinopoulou, Niki (author), Daramouskas, Ioannis (author), Ellerbroek, Joost (author), Lappas, Vaios (author), Kostopoulos, Vassilios (author), Hoekstra, J.M. (author)The use of small aircraft for a wide range of missions in urban airspace is expected to increase in the future. In Europe, efforts have been invested into developing a unified system, called U-space, to manage aircraft in dense very-low-level urban airspace. The Metropolis II project aimed to research what degree of centralisation an air traffic...journal article 2023
- document
-
Ribeiro, M.J. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Future operations involving drones are expected to result in traffic densities that are orders of magnitude higher than any observed in manned aviation. Current geometric conflict resolution (CR) methods have proven to be very efficient at relatively moderate densities. However, at higher densities, performance is hindered by the...journal article 2022
- document
-
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
-
Patrinopoulou, N. (author), Daramouskas, I. (author), Lappas, V. (author), Morfin Veytia, A. (author), Badea, C. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author), De Vries, V. (author), Van Ham, J. (author)Metropolis II aims to provide insights in what is needed to enable high-density urban air operations. It does this by investigating the foundation for U-space U3/U4 services. The final goal is to provide a unified approach for strategic deconfliction, tactical deconfliction, and dynamic capacity management. Highly-dense operations in...conference paper 2022
- document
-
Ribeiro, M.J. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Future high traffic densities with drone operations are expected to exceed the number of aircraft that current air traffic control procedures can control simultaneously. Despite extensive research on geometric CR methods, at higher densities, their performance is hindered by the unpredictable emergent behaviour from surrounding aircraft. In...journal article 2022
- document
-
Badea, C. (author), Groot, D.J. (author), Morfin Veytia, A. (author), Ribeiro, M.J. (author), Dalmau, Ramon (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Air traffic demand has increased at an unprecedented rate in the last decade (albeit interrupted by the COVID pandemic), but capacity has not increased at the same rate. Higher levels of automation and the implementation of decision-support tools for air traffic controllers could help increase capacity and catch up with demand. The air traffic...conference paper 2022
- document
-
Morfin Veytia, A. (author), Badea, C. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author), Patrinopoulou, N. (author), Daramouskas, I. (author), Lappas, V. (author), Kostopoulos, Vassilis (author), de Vries, Vincent (author)The Metropolis II project aimed to study the impact of centralised separation management for urban aerial mobility. Three concepts were developed in this study: a fully centralised, strategically separated concept, a hybrid concept featuring cen- tralised strategic separation and distributed tactical separation, and a fully distributed tactical...conference paper 2022
- document
-
van Baelen, D. (author), van Paassen, M.M. (author), Ellerbroek, Joost (author), Abbink, D.A. (author), Mulder, Max (author)Modern aircraft can be equipped with a flight envelope protection system: automation which modifies pilot control inputs to ensure that the aircraft remains within the allowable limits. Overruling the pilot inputs may lead to mode confusion, even when visual or auditory feedback is provided to alert pilots. We advocate using active control...journal article 2021
- document
-
Doole, M.M. (author), Ellerbroek, Joost (author), Knoop, V.L. (author), Hoekstra, J.M. (author)Large-scale adoption of drone-based delivery in urban areas promise societal benefits with respect to emissions and on-ground traffic congestion, as well as potential cost savings for drone-based logistic companies. However, for this to materialise, the ability of accommodating high volumes of drone traffic in an urban airspace is one of the...journal article 2021
- document
-
Ribeiro, M.J. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Current investigations into urban aerial mobility, as well as the continuing growth of global air transportation, have renewed interest in conflict detection and resolution (CD&R) methods. The use of drones for applications such as package delivery, would result in traffic densities that are orders of magnitude higher than those currently...journal article 2021
- document
-
Metz, I.C. (author), Ellerbroek, Joost (author), Mühlhausen, Thorsten (author), Kügler, Dirk (author), Hoekstra, J.M. (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 paper investigates the safety potential of operational bird strike prevention involving pilots and controllers. In such a concept, controllers would be...journal article 2021
- document
-
Cain, Sebastian (author), Torens, Christoph (author), Juchmann, Patrick (author), Volkert, Andreas (author), Tomasello, Filippo (author), Natale, Matteo (author), Vreeken, Joost (author), Ribeiro, M.J. (author), Ellerbroek, Joost (author)Unmanned aircraft systems (UAS) have been in civil use for several years. A new risk-based approach to approval was developed by the Joint Authorities for Rulemaking of Unmanned Systems (JARUS) which relies on the so-called Specific Operations Risk Assessment (SORA) for the specific category. Operational authorization is based on the assessment...conference paper 2021
- document
-
Metz, I.C. (author), Ellerbroek, Joost (author), Mühlhausen, Thorsten (author), Kügler, Dirk (author), Kern, Stefan (author), Hoekstra, J.M. (author)Involving air traffic controllers and pilots into the bird strike prevention process is considered an essential step to increase aviation and avian safety. Prior to implementing operational measures such as real-time warning systems, it is vital to evaluate their feasibility. This paper studies the efficacy of a bird strike advisory system for...journal article 2021
- document
-
Doole, M.M. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Driven by rising consumer demand, interest is growing in the application of autonomous unmanned aerial vehicles (drones) for the last-mile delivery of small express packages and fast-food meals in cities. To be realised, this would require the Very Low Level (VLL) urban airspace to be able to cope with high traffic densities of commercial...journal article 2020
- document
-
Ribeiro, M.J. (author), Ellerbroek, Joost (author), Hoekstra, J.M. (author)Current investigations into urban aerial mobility, as well as the continuing growth of global air transportation, have renewed interest in Conflict Detection and Resolution (CD&R) methods. With the new applications of drones, and the implications of a profoundly different urban airspace, new demands are placed on such algorithms, further...review 2020
- document
-
van Rooijen, S. J. (author), Ellerbroek, Joost (author), Borst, C. (author), van Kampen, E. (author)Lack of trust and lack of acceptance caused by strategic mismatches in problem-solving have been identified as obstacles in the introduction of workload-alleviating automation in air traffic control. One possible way to overcome these obstacles is by creating automation capable of providing personalized advisories conformal to the individual...journal article 2020