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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
281

The assessment of market power of hub airports

Polk, Andreas, Bilotkach, Volodymyr 01 February 2021 (has links)
Airport regulation regimes are under revision in many countries. The decision about the extent of airport regulation is based on an economic analysis of market power, which is done in two steps. The first step involves defining the relevant markets the airport is operating on. This in turn is based on an economic analysis of the particular circumstances of the airport, and must be compatible with competition law. The second step consists of the evaluation of the airport's competitive position in all identified markets. Due to industry particularities, many diverse issues must be taken into account in this process, such as questions of upstream and downstream market interaction, airport congestion, peak-load pricing, or offsetting bargaining power. Many of these questions have been theoretically analyzed in the industrial organization literature, but have only rarely been applied in practical competition analysis with respect to airports. This paper builds a bridge between the theoretical insights and their practical application to airport regulation policy. We derive the principles for a sound economic analysis of the market power of airports, given the time and data constraints encountered in practice by the regulatory authorities and other involved parties, and propose a general framework for the analysis of market power of airports. We focus on hub airports, as the analysis of these gateways covers all the relevant issues, including countervailing power of the hub operator.
282

Raspberry Pi Based Vision System for Foreign Object Debris (FOD) Detection

Mahammad, Sarfaraz Ahmad, Sushma, Vendrapu January 2020 (has links)
Background: The main purpose of this research is to design and develop a cost-effective system for detection of Foreign Object Debris (FOD), dedicated to airports. FOD detection has been a significant problem at airports as it can cause damage to aircraft. Developing such a device to detect FOD may require complicated hardware and software structures. The proposed solution is based on a computer vision system, which comprises of flexible off the shelf components such as a Raspberry Pi and Camera Module, allowing the simplistic and efficient way to detect FOD. Methods: The solution to this research is achieved through User-centered design, which implies to design a system solution suitably and efficiently. The system solution specifications, objectives and limitations are derived from this User-centered design. The possible technologies are concluded from the required functionalities and constraints to obtain a real-time efficient FOD detection system. Results: The results are obtained using background subtraction for FOD detection and implementation of SSD (single-shot multi-box detector) model for FOD classification. The performance evaluation of the system is analysed by testing the system to detect FOD of different size for different distances. The web design is also implemented to notify the user in real-time when there is an occurrence of FOD. Conclusions: We concluded that the background subtraction and SSD model are the most suitable algorithms for the solution design with Raspberry Pi to detect FOD in a real-time system. The system performs in real-time, giving the efficiency of 84% for detecting medium-sized FOD such as persons at a distance of 75 meters and 72% efficiency for detecting large-sized FOD such as cars at a distance of 125 meters, and the average frame per second (fps) that is the system ’s performance in recording and processing frames of the area required to detect FOD is 0.95.
283

Heuristic search for allocation of slots at network level

Benlic, Una 16 November 2020 (has links)
This paper considers the allocation of slots for a network of coordinated (congested) airports, where the term “slot” refers to a time on a specific day when a carrier is given permission to use the full range of airport infrastructure for the purpose of landing and take-off at a slot-controlled airport. We take into account the existing IATA rules and guidelines: priorities of requests for slots, the capacity limitations at each airport, the minimal turnaround time between arrival and subsequent departure of the same aircraft, and allocation to series of slots rather than to individual slots. Given the complexity of the problem, we propose an approach that consists of (i) a constructive heuristic procedure to generate a feasible and coherent allocation of slots for each airport from the network, and (ii) an iterative heuristic to improve the quality of an initial feasible solution in terms of the schedule delay (time difference between allocated time slots and airline requests). To evaluate whether the approach would be practical in real operation, we perform tests on a set of generated benchmark instances that span an entire scheduling season. The instances differ by the number of airports in the network and by the distribution of requests among airports from a given network - the largest number of airports forming a network is 100, while the maximum total number of aircraft movements considered on a half-yearly basis exceeds . We provide computational comparisons with solutions obtained when each airport from a network is considered independently (the en-route constraint is ignored). These results reveal that the consideration of the en-route constraint, which ensures a coherent allocation of slots at origin and destination airports, introduces only a minor degradation in the schedule delay and in the number of unaccommodated requests. Furthermore, we investigate the heuristic performance for reduced-capacity scenarios.
284

A Case Study of Crisis Management Training Needs: Saudi Airlines

Alqahtani, Hussain Saad 01 January 2019 (has links)
This dissertation explores crisis management policies, programs, and training in the Kingdom of Saudi Arabia’s premier airliners, Saudi Arabian Airlines. Saudi Arabian Airlines is a domestic and international carrier with a major role in the transportation of millions of Muslim pilgrims to the Kingdom during the annual Hajj season. This event places enormous strains on the capacity of the carrier, the airport, ground support systems, and the societal infrastructure of country. There have been tireless efforts by the Airline’s staffers to serve millions of visitors including pilgrims in a timely, safe and appropriate manner. Crisis management for Saudi Arabian Airlines includes assessment of natural and man-made risks in the firm’s operational environment, the development of a comprehensive response plan that includes training of staff at all levels of the firm, compliance with all relevant legal and regulatory mandates, and the use of effective response tools and systems. Saudi Arabian Airlines is viewed herein as best approached through the theoretical lens of Systems Theory, which speaks to the interdependency that exists within complex, multi-faceted systems. To identify the approach taken by Saudi Arabian Airlines to crisis management and to assess whether or not its response could be enhanced through additional planning, training or other strategies, a case study including review of relevant literature augmented by a survey of a sample of industry employees was undertaken. The survey instrument, coupled with an analysis of relevant crisis management protocols and practices including those recommended by organizations such as the International Air Transport Association was sued. The study identifies a need for additional training of the Airlines’ employees for a more effective crisis response
285

Холдинг «Аэропорты Регионов»: анализ стратегии развития (2012 - 2014 года) : магистерская диссертация / Holding "Airports of Regions": an analysis of the development strategy (2011–2014)

Комаров, А. Д., Komarov, A. D. January 2015 (has links)
The master's thesis discusses current trends in the development of Russia's largest airport holding. Studied in detail the development of the airport "Koltsovo" as the central area of the holding, the progress of the development plans for airports holding in Samara, Nizhny Novgorod, Rostov-on-Don. / В магистерской диссертации рассматриваются актуальные тенденции развития крупнейшего аэропортового холдинга России. Подробно изучается развитие аэропорта «Кольцово» как центральной площадки холдинга, ход реализации планов развития аэропортов холдинга в Самаре, Нижнем Новгороде, Ростове на Дону.
286

POLICY AND PRACTICE OF WETLANDS MITIGATION FOR AIRPORTS

TRISAL, SHILPA 11 June 2002 (has links)
No description available.
287

The Art of the Airport: Using Public History and Material Culture to Humanize and Interpret the American Airport

Smith III, John E. January 2018 (has links)
In recent decades, government officials and social scientists have increased their study of American airports and their relationship to security and national defense. Despite the growing attention, airports remain interpreted primarily as homogenized, transient spaces deprived of any culturally unique qualities. This thesis will study American airports as historical artifacts with significant layers of meaning. If contextualized and situated within a broader historical framework, then airports expose larger trends throughout American history including resistance to multiculturalism and diversity. The stress and anxiety often associated with airports reflect a prolonged struggle to embrace the democratization of public places. If studied with an historical approach from multiple perspectives, then the airport provides historians with a tangible, familiar object to engage popular audiences about complicated issues such as surveillance, xenophobia, and urban renewal. This thesis proposes a conceptual framework for historians to assess the significance of airport space and offers suggestions to better engage the national conversations surrounding these complicated spaces. / History
288

Crash Landing: Citizens, The State and Protest Against Federal Airport Development, 1968-1976

Rowan, Michael January 2019 (has links)
Abstract During the 1960s both the federal and provincial governments continued to take on new and larger responsibilities. During this same time period citizens began to mobilize and challenge the state on a number of social issues including race, gender, labour, urban sprawl and the environment. Citizens believed that not only did they have the right to challenge the authority of government in planning public policy, but they also had a right to participate in the decision-making process as much as any bureaucrat, expert, or elected official. In planning airports in Pickering, Ste. Scholastique and Sea Island, the federal government was opposed by citizen groups in each of these three cases. Citizens believed their voices were not being heard and that government officials did not respect them. As a result, they disrupted the meticulously laid out plans of elected officials and policy planners by drawing on evidence and expert advice. The conflict over federal airport development is an example of the evolution of the consultation process with citizens, as citizens challenged the way public policy was planned. Governments now had to justify policies like expropriation for the public good since citizen groups would form over any intrusion into their private lives. The debates over airport planning highlights the role of citizens, bureaucrats, provincial and federal politicians as they all tried to navigate the complex shifting landscape of the Canadian state. By 1976 the Pickering Airport had been canceled, Mirabel was opened, and the Sea Island runway expansion would be delayed for 15 years. Although the citizen groups never had complete victories, citizen participation became more paramount to state planning after these events. Public policy planning in Canada had become far more inclusive than ever before. Whether the politicians, bureaucrats or citizens were aware of the consequences remain to be seen. / Thesis / Doctor of Philosophy (PhD) / Abstract During the 1960s both the federal and provincial governments continued to take on new and larger responsibilities. During this same time period citizens began to mobilize and challenge the state on a number of social issues including race, gender, labour, urban sprawl and the environment. Citizens believed that not only did they have the right to challenge the authority of government in planning public policy, but they also had a right to participate in the decision-making process as much as any bureaucrat, expert, or elected official. In planning airports in Pickering, Ste. Scholastique and Sea Island, the federal government was opposed by citizen groups in each of these three cases. Citizens believed their voices were not being heard and that government officials did not respect them. As a result, they disrupted the meticulously laid out plans of elected officials and policy planners by drawing on evidence and expert advice. The conflict over federal airport development is an example of the evolution of the consultation process with citizens, as citizens challenged the way public policy was planned. Governments now had to justify policies like expropriation for the public good since citizen groups would form over any intrusion into their private lives. The debates over airport planning highlights the role of citizens, bureaucrats, provincial and federal politicians as they all tried to navigate the complex shifting landscape of the Canadian state. By 1976 the Pickering Airport had been canceled, Mirabel was opened, and the Sea Island runway expansion would be delayed for 15 years. Although the citizen groups never had complete victories, citizen participation became more paramount to state planning after these events. Public policy planning in Canada had become far more inclusive than ever before. Whether the politicians, bureaucrats or citizens were aware of the consequences remain to be seen.
289

Increasing capacity by the use of optimal runway exits, automated landing, roll out and turnoff in an airport environment

Nam, Amadou Sylla January 1986 (has links)
This study outlines the development and use of several techniques providing an automated landing, roll out and turnoff of an aircraft, in an airport environment. A maximum runway occupancy time and a certain level of reliability are achieved by the use of a computer software called the Probabilistic Computer Model of Optimal Runway Turnoffs. A bunching of eight optimal high speed exits, representing four TERPS categories, is performed on a single runway. Feasibility of the system is determined by the use of Inertial Navigation and other aids such as the Microwave Landing System, Filtering Devices, Electronic Cockpit Airfield Display Formats, Real Time Flight Simulation and Field Testing, and a Braking Guidance Policy. It is suggested that future testing and a review of the Model be done. / M.S.
290

Flying on the Edge of Sea, Land and Sky - A new passenger terminal for the Grand Bahama International Airport

Ambrose, Serge 24 January 2007 (has links)
Ever since the airport was conceived as a permanent building type, airport designers have debated what identity an airport should embody. As a threshold of first impressions, the airport should not only introduce the visitor to the local environment but also represent the identity of a country. The aim of this thesis project is to design an airport terminal that reflects the natural and cultural environments of the islands of the Bahamas. Through its architecture, this building attempts to create an engaging experience for its users: passengers, employees and visitors. Local culture and sense of place are abstracted through architectural ideas, realized in the language of contextual modernism. The synthesis of the themes and concepts explored throughout the design process are presented through drawings and commentary. Precedents such as the Taino cosmos, color and nature, place and culture are used to inspire structural systems, form and aesthetics. The plan of the new airport terminal fulfils the functional program while interpreting the land and sea formations of the Bahama islands; ocean currents and land-sea patterns may be associated with movements of people and machines, converging and diverging within the airport environment. / Master of Architecture

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