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 12 of 12 for “"departure process"”.
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Analysis, modeling and control of the airport departure process
… steps: The first part deals with the analysis of departure operations and the characterization of airport capacity; the second part develops a new model of the departure process; and the third part of the thesis proposes and tests, both on the field and in simulations, algorithms for the control …
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Modeling and control of the departure process of congested airports
A simple queueing model of departure operations at congested airports is proposed. This model is calibrated and validated in the case of Boston Logan airport, using runway configuration and traffic data from the Airline Service Quality Performance (ASQP) dataset. The model is then used to evaluate …
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The impact of coordination and relationships in an outsourcing environment : the airline departure process
Complicated business processes, like the airline departure process, that involve multiple job functions and even multiple companies need high levels of cross-functional coordination for successful completion. A study of the airline departure process at four stations of Icelandair showed that …
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Queuing dynamics and control of departure operations at Boston Logan Airport
The Departure Planner (DP) is a concept for a decision-aiding tool that is aimed at improving the performance of departure operations at major congested airports. In order to support the development of DP tools and other improved methods for departure operations, this thesis is an effort to gain a …
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Observation and analysis of departure operations at Boston Logan International Airport
… support the development of improved methods for departure operations, the flow constraints and their causalities --primarily responsible for inefficiencies and delays-- need to be identified. This thesis is an effort to identify such flow constraints and gain a deep understanding of the departure …
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Developing an Integrated Method of Controlling the Flow of Departing Passengers: A study of passenger departure processes at Abu Dhabi International Airport
… applying the Lean methodology to the passenger departure process in Terminal 3. The essential essence of ‘Lean’ is doing more with fewer resources by adopting a programme of continuous process improvement resulting in continually declining costs, mistakes and work-in-progress. The special …
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Problems in feedback queueing systems with symmetric queue disciplines
… is one of two symmetric disciplines. For the processor sharing queue with exponentially distributed service requirements we analyze the departure process, imbedded queue lengths, and the input and output processes. We determine the semi-Markov kernel of the internal flow processes and compute …
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Queues with a Markov renewal service process
… we study a queue with a Markov renewal service process. The objective is to model systems where different customers request different services and there is a setup time required to adjust from one type of service to the next. The arrival is a Poisson process independent of the service. After …
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Modeling and control of airport departure processes for emissions reduction
… approach is proposed that models the aircraft departure process as a queuing system. The departure taxi (taxi-out) time of an aircraft is represented as a sum of three components: the unimpeded taxi-out time, the time spent in the departure queue, and the congestion delay due to ramp and …
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Analysis and Approximations of Time Dependent Queueing Models
… to approximate the model-specified general input processes and distributions by processes and distributions from the more computationally friendly family of phase-type processes and distributions. We develop numerical approximation methods for analysis of general time-dependent queueing nodes by …
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Experimental Investigation of Subcooled Flow Boiling and CHF at Prototypical Pressures of Light Water Reactors
… resolutions. We explored aspects of bubble departure, microlayer and triple contact line evaporation, boiling parameters (i.e. nucleation site density, bubble departure frequency, wait and growth times), heat flux partitioning and departure from nucleate boiling. The results reveal that in …
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A stochastic and dynamic model of delay propagation within an airport network for policy analysis
… can model very accurately the airport departure process, predicting delays at two major US airports within 10% of observed values. We also validate the AND model on a network-wide scale against field data reported by the FAA. Finally, we present insights into the complex interactions …