Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 227 for “"Airspace"”.
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National Airspace Data Interchange Network analysis
… the Federal Aviation Administration's National Airspace Data Interchange Network (NADIN).. The objective is to define, for telecommunication students, this data interchange network and examine the effects which current network upgrades will have on network performance. Descriptions if the …
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An Airspace Simulator for Separation Management Research
… but tend to be complex and inaccessible. The Airspace Simulator is a fast-time, discrete event simulator originally designed for exploratory ATM research. This thesis describes the redevelopment of the Airspace Simulator into a simulation platform better suited for researching and evaluating …
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Congested Airspace Routing Analysis of Commercial Unmanned Aircraft Systems
… unmanned aircraft systems in congested airspace sectors through analysis of several routing options utilizing flight simulation technology and logical analysis. Commercial unmanned aircraft systems will require a discrete set of operating rules and will need a substantial sector of the …
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Predicting pilot intent and aircraft trajectory in uncontrolled airspace
… Unmanned Aerial Systems (UAS) in the National Airspace System (NAS). A particularly challenging environment is in the vicinity of uncontrolled airports, where the route the pilot plans to follow is not available. Existing trajectory prediction methods that rely on propagating the current …
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Hierarchical Behavior Models for Characterizing Trajectories within Terminal Airspace
Flight trajectories in terminal airspace, ranging from highly controlled airports to untowered airports, exhibit repeatable patterns. These patterns, or behaviors, may often contain sub-patterns, suggesting that the nature of aircraft behaviors in terminal airspace is hierarchical. While current …
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Development of a Computer Based Airspace Sector Occupancy Model
This thesis deals with the development of an Airspace Sector Occupancy Model (ASOM). The model determines the occupancy of Air Traffic Control Center (ARTCC) sectors for a given geometry of sectors and flight schedules, and can be used to study the impact of alternative flight schedules on the …
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Pilot’s Willingness to Operate in Unmanned Aircraft System Integrated Airspace
… momentum. As UAS infiltrate the National Airspace System (NAS), there is a need to not only develop viable, safe, and secure solutions for the co-existence of manned and unmanned aircraft, but also determine public acceptance and pilot’s willingness to operate an aircraft in such an …
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Airspace Integration of New Entrants and Safety Risk Management Models
<p><br /> In recent years, the demand for airspace access of Unmanned Aerial Systems (UAS) increased significantly and is continuously increasing for different altitude-types UAS. A similar evolution is expected from Commercial Space Operations (CSO) in the next years. These aviation/aerospace …
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Gulf Regional Airspace Strategic Initiative Modeling Using Discrete Event Simulation
The Gulf Regional Airspace Strategic Initiative (GRASI) is an effort to involve stakeholders affected by future changes in the airspace and military installations in the Northwest Florida Panhandle in creating a compromise that equally protects each stakeholder's airspace and airfield resources now …
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Optimizing Integrated Airport Surface and Terminal Airspace Operations under Uncertainty
In airports and surrounding terminal airspaces, the integration of surface, arrival and departure scheduling and routing have the potential to improve the operations efficiency. Moreover, because both the airport surface and the terminal airspace are often altered by random perturbations, the …
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En-route airspace capacity under flow separation and scheduling constraints
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.
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Analysis of airspace traffic structure and air traffic control techniques
… processes. Prior work has identified that the airspace structure, defined by the reference elements, procedural elements and pattern elements of the traffic, is important for abstraction and management of the traffic. This work explores in more detail this relationship between airspace …
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Harmonization of aviation user charges in the North Atlantic airspace
… scenarios is compared in terms of its impact on airspace users. Two different interpretation of a "harmonized" system are considered. The first explores the harmonization of only the charging methodology, allowing service providers to set and collect their own charges. The second harmonization …
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Improvement of terminal area capacity in the New York airspace
The New York airspace is the most congested in the U.S. air transportation network. Increasing capacity in this area is critical to ensure the balanced growth of traffic across the U.S. This study compares the total measured runway capacity at the New York airports with the achieved throughput of …
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Impacts of Space Launch Operations on Florida East Coast Airspace Users
… space flight integration into the National Airspace System (NAS) is a pertinent area of research so safe and efficient operations in NextGen airspace can be achieved. The currently implemented procedure for Florida east coast launches temporarily closes the airspace to keep all air traffic …
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U.S. Airspace Integration: Perspectives of the FAA UAS Test Site Program
… to integrate unmanned aircraft into the national airspace system, congress mandated action by the Federal Aviation Administration under the Federal Aviation Administration Modernization and Reform Act of 2012. It required the formation of six test sites that would conduct unmanned aircraft …
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Safety analysis of TCAS on Global Hawk using airspace encounter models
… for close proximity to manned aircraft in civil airspace, collision avoidance is a major concern, and the Air Force is seeking to equip Global Hawk with the Traffic Alert and Collision Avoidance System (TCAS) to reduce the probability of mid-air collision. Currently, Global Hawk is equipped with …
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Airport Performance Metrics Analysis: Application to Terminal Airspace, Deicing, and Throughput
… the operational performance of the National Airspace System (NAS), where they analyze trends in the aviation industry to help develop strategies for a more efficient air transportation system. To measure the performance of various elements of the aviation system, the FAA and the International …
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Benefits and incentives for ADS-B equipage in the National Airspace System
… that would increase the capacity of the National Airspace System (NAS) in the US. Certain forms of ADS-B also have the bandwidth to upload weather and airspace information into the cockpit. However, prior to achieving the benefits of ADS-B, operators must equip with the technology. In order to …
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Using tactical flight level resource allocation to alleviate congested en-route airspace
… the problem of congestion in the National Airspace System (NAS). This thesis presents a novel methodology for allocating aircraft among En Route flight levels as a means to mitigate air traffic congestion and stakeholder operating costs. The core of the methodology is a decision-aiding tool …
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