To gain an understanding about what information requirements there are for future operators of autonomous drone swarms at airport, this study examined how work at airports is structured today, what staff at airports think about the potential implementation of autonomous drones, and what potential interface components that are necessary to be able to control these drones. Interviews and observations were made at five different airports and air traffic control towers with tower and ground staff. Based on the collected data a Cognitive Work Analysis (CWA) was made to understand the domain and a Thematic Analysis (TA) was made to understand the ideas regarding the drones. Finally, a workshop with fellow researchers was made to generate ideas about solutions and interface requirements, which was analyzed together with the CWA and TA. It was concluded that the main values of the system are to maintain Situational Awareness, Avoid collisions, and Keep time in order to ensure safe flight traffic. A major aspect to make this possible is communication. This was also a main factor for the implementation of autonomous drones, where it was considered important to know what the drones are doing and where they are. However, it was not always necessary for every person at the airport to have complete oversight and control over the drone, but having the possibility to gain that information was central. Having overview of the drones’ present activities, being able to see what they had done, being able to control them directly, and getting notified about relevant information were interface requirements identified. It was concluded that despite there being some constraints and challenges to implementing autonomous drones at airports, there are aspects that can be taken into account and information to be presented in the right way for the future operator to enable implementation of the autonomous drones at airports.

No description available.

No description available.

No description available.

published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning

abstract / toc / Transport Policy and Planning / Master / Master of Arts in Transport Policy and Planning

L’application des règles de concurrence de l’Union européenne au secteur de l’aviation présente un caractère spécial. Les rapprochements des compagnies aériennes sous formes d’alliances ou concentrations sont à première vue indispensables, afin de garantir leur viabilité et mieux desservir les besoins des voyageurs. La pression concurrentielle exercée par les différents moyens de transports et la globalisation des échanges conduisent vers cette voie. Or, la consolidation du marché aérien peut avoir des conséquences néfastes au détriment des consommateurs. Structure oligopolistique, organisation des gros opérateurs en réseaux (hub-and-spoke system), insuffisance des infrastructures, coûts énormes d’exploitation ainsi que protectionnisme au niveau international, constituent des barrières considérables à l’entrée de nouveaux concurrents et peuvent conduire à des pratiques abusives. La transparence tarifaire et les accords de coopération peuvent favoriser les cartels entre transporteurs aériens. La Commission évalue la position des parties et les risques à la concurrence sur des liaisons déterminées (paires de villes). Cette méthode de délimitation du marché pertinent au transport aérien suscite une polémique de la part notamment des compagnies aériennes qui soutiennent une approche fondée sur la concurrence entre réseaux. Ce débat, montre l’évolution du secteur de l’aviation et la nécessité de prendre toujours en compte les nouvelles données. Le maintien d’une concurrence efficace au secteur de l’aviation n’est pas un objectif en soi, mais un instrument de la politique européenne pour la création du « ciel unique européen ». L’intervention des autorités de l’Union européenne au secteur de l’aviation ne se limite pas à une application rigoureuse des règles de concurrence mais vise à éliminer préalablement les phénomènes anticoncurrentiels par l’adoption d’un cadre législatif. / The application of European Union’s competition rules to the aviation sector presents a special character. The rapprochement of air companies either by the formation of alliances or mergers seem to be necessary. Indeed, it can guarantee the existence of a company as well as it serves the needs of travellers. The competitive pressure exercised by the different existing means of transportation and the globalisation of exchanges lead to this behaviour. But this consolidation of the air market can have harmful consequences for consumers. Oligopolistic structures, the hub-and-spoke system, insufficiency of infrastructures, enormous costs of exploitation along with protectionism at an international level, constitute considerable barriers for new competitors and could lead to abusive practices. Tariff transparency and cooperative agreements can furtherer cartels in between air transporters. The Commission assesses the position of the parties and competitive risks on specific routes (city pairs). This method of delimitation of the market for air transport has created a polemic, especially from the airline companies supporting an approach based on competition between networks. This debate shows the evolution of the aviation sector and the necessity of always taking into consideration new data. The upholding of an efficient competition system within the aviation sector is not an objective in itself, but means of European politic for the creation of a “Single European Sky”. The intervention of European authorities within the aviation sector is not limited to a rigorous application of competition rules but aims first at eliminating anticompetitive phenomenon by adopting a legislative framework.

Insbesondere seit den 1990er Jahren ist international eine wachsende Bedeutung der Transiträume Tankstelle, Flughafen und Bahnhof als Einzelhandels- und Dienstleistungsstandorte zu beobachten. Vielfältige Gründe sowohl auf standortendogener als auch auf standortexogener Seite sind dafür verantwortlich. Nach einer vergleichenden Analyse der drei Transiträume auf allgemeiner Ebene wendet sich die Betrachtung der praktischen Umsetzung der Einzelhandelsansiedlung an den Standorten zu. Für die Flughäfen und Tankstellen geschieht dies mittels einer Literaturauswertung. Der Einzelhandelsstandort Bahnhof wird dagegen im Rahmen einer eigenen empirischen Studie im Großraum Berlin einer speziellen Prüfung unterzogen. Den Ausgangspunkt stellt ein deduktives Modell zum Versorgungsstandort Bahnhof dar, das die wichtigsten Einflussgrößen nennt und zueinander in Beziehung setzt. Ziel des Modells ist es, die Entwicklung eines Bahnhofs zu einem erfolgreichen Versorgungsstandort zu erleichtern. Außerdem hilft es, die Effekte der Bahnhofskommerzialisierung auf Standortcharakter und städtischen Raum abzuschätzen. Der Modellentwurf wird mit Hilfe einer Bestandsaufnahme auf Bahnhofs- und Angebotsseite und einer Besucherbefragung überprüft und inhaltlich konkretisiert, so dass schließlich ein verifiziertes Modell zum Versorgungsstandort Bahnhof vorliegt, das mit empirischen Daten und Planungshilfen untermauert ist und zur Anwendung bereitsteht. / Since the 1990s there has been a growing significance of transit areas like gas stations, airports and railway stations as retail locations. This development is caused by various reasons. Having compared the three types of transit areas in general the thesis illustrates how the setting-up of retail in transit areas is put into practice. The shopping areas of airports and gas stations are presented on the basis of a literature review. The retail in railway stations is analysed by own research. Starting point of the study is a deductive model describing the railway station in its function as retail location. It shows the key elements of the retail system and their relations to each other. The model aims at facilitating the development of profitable shopping areas within railway stations and it helps assess the effects of the commercial using on the location''s character and its surroundings. To check and fill up the model with empirical data own surveys (inventory, interviews) have been carried out in the metropolitan area of Berlin. Eventually a verified model describing the railway station in its function as retail location exists. It is supported by empirical data and planning aids and ready for application.

Post deregulation, many U.S. airlines created hubs with banked schedules, however, in the past decade these same airlines began to experiment with depeaking their schedules to reduce costs and improve operational performance. To date there has been little research that has investigated revenue and operational shifts associated with depeaked schedules; yet understanding the trade-offs among revenue, costs, and operational performance at a network level is critical before airlines will consider future depeaking and related congestion-management strategies. This study develops data cleaning and analysis methodologies based on publicly available data that are used to quantify airport-level and network-level revenue and operational changes associated with schedule depeaking. These methodologies are applied to six case studies of airline depeaking over the past decade. Results show that depeaking is associated with revenue per available seat mile (RASM) increasing slower than the rest of the network and the industry as a whole. Depeaking is associated with improved operations for both the depeaking airlines and competitors. Airports benefit from increases in non-aeronautical sales associated with connecting passengers spending more time in the terminal. The underlying reasons driving airlines' scheduling decisions during depeaking vary greatly by case. Results from the study provide insights for airlines that are considering depeaking and the airports which are affected. The results suggest that losses in RASM and no improvement in operations could potentially lead an airline to repeak, and that RASM is prone to fall when a strong competitive threat exists.

Abstract: This thesis addresses the problem of graceful degradation for air traffic management systems (ATMS). The graceful degradation is the process by which the safety of the airspace is ensured in the event of failures or operational degradation in the system. After listing the main areas where failures and degradation can affect the ATMS, an ontology of the ATMS is proposed. The ontology allows to introduce failures at different levels, track their propagation throughout the system, and measure their operational impact. Then, two operational degradations are studied: The first degradation studied is a reduction in the landing capacity at San Francisco International Airport. The aircraft queueing process for terminal area is modeled and optimized to ensure a graceful degradation. The second degradation encompasses Communication, Navigation and Surveillance systems failures. The graceful degradation is ensured by increasing the spacing distance between aircraft, using novel algorithms of avoidance under uncertainties. Those algorithm also serve as probes to compare the degradation capabilities of different traffic configurations such as Miles-In-Trail and Free-Flight arrivals. Finally, this thesis focuses on monitoring the airspace for potential degradation. The ability and the difficulty of en-route traffic configuration are evaluated using degradation maps. Those maps can be used controller to rapidly and efficiently steer traffic from nominal mode of operations to mode of operations under abnormal conditions. Finally, a monitoring tool for terminal area is presented: the conformance of current flight to pre-identified typical operations is determined in real time. As the number of non-conforming aircraft increases, the complexity seen by air traffic controllers increases, and can become a threat for the airspace safety.