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 18 of 18 for “"airline scheduling"”.
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Integrated airline scheduling : models and algorithms
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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Approaches to incorporating robustness into airline scheduling
The airline scheduling process used by major airlines today aims to develop optimal schedules which maximize revenue. However, these schedules are often far from "optimal" once deployed in the real world because they do not accurately take into account possible weather, air traffic control (ATC), …
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The Effect of Airline Scheduling on Airport Delays
… the arrival of the “Hub and Spoke” system of airline operations. The passage of this act along with the increasing use of smaller commuter planes has caused the airlines to over schedule many of the larger hub airports in the United States causing many delays in the nation’s air traffic …
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Dynamic airline scheduling and robust airline schedule de-peaking
Demand stochasticity is a major challenge for the airlines in their quest to produce profit maximizing schedules. Even with an optimized schedule, many flights have empty seats at departure, while others suffer a lack of seats to accommodate passengers who desire to travel. Recognizing that demand …
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Degradable airline scheduling : an approach to improve operational robustness and differentiate service quality
We present a methodology for deriving robust airline schedules that are not vulnerable to disruptions caused by bad weather. In this methodology, the existing schedule is partitioned into independent sub-schedules or layers - prioritized on the basis of revenue - that provide airlines with a clear …
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Airline scheduling and air traffic control : incorporating uncertainty and passenger and airline preferences
The global airline industry is a multi-stakeholder stochastic system whose performance is the outcome of complex interactions between its multiple decisions-makers under a high degree of uncertainty. Inadequate understanding of uncertainty and stakeholder preferences leads to adverse effects …
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Integrated optimization model for airline schedule design : profit maximization and issues of access for small markets
… embedded in a system dynamics framework. The MIT Airline Scheduling Module is the module within the NAS Strategy Simulator that represents the decision making process of the airlines with respect to the schedules that they fly. The MIT Airline Scheduling Module is an incremental optimization tool …
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Competition and congestion in the National Aviation System : multi-agent, multi-stakeholder approaches for evaluation and mitigation
… with multiple, interacting agents including airlines, passengers, and system operators, each with somewhat different objectives and incentives. These interactions determine the state of the system. NAS congestion and delays result in additional operating costs and reduced profitability for …
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Mitigating airport congestion : market mechanisms and airline response models
… elements in the design of such slot auctions -- airline valuations and activity rules. An aspect of airport slot market environments, which we argue must be considered in auction design, is the fact that the participating airlines are budget-constrained. -- The problem of finding the best bundle …
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Airline schedule planning and operations : optimization-based approaches for delay mitigation
… strategic and operational measures of improving airline system performance and reducing delays for aircraft, crew and passengers. As a strategic approach, we study robust optimization models, which capture possible future operational uncertainties at the planning stage, in order to generate …
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Cyclic exchange and related neighborhood structures for combinatorial optimization problems
… Model (ctFAM). This model integrates two airline planning models: (i) Fleet Assignment Model and (ii) Through Assignment Model, which are currently solved in a sequential manner because the combined problem is too large. This leads to sub-optimal solutions for the combined problem we …
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Integrated allocation and utilization of airport capacity to mitigate air traffic congestion
… System, which imposes large costs on the airlines, passengers and society. Absent opportunities for capacity expansion, the mitigation of air traffic congestion requires improvements in (i) the utilization of airport capacity to enhance operating efficiency at the tactical level (i.e., …
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Estimating the true extent of air traffic delays
… to schedule. Over the past decades, however, airline schedules have been adjusted to take into account airspace congestion and yield better on-time performance. In that context, delay measures that are using scheduled times as a benchmark are of very limited use in assessing airport and …
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Metrics and methods of improving airline schedule reliability
Airline scheduling is a daunting task. Much time and resources are spent by airlines developing a schedule that meets expectations of profitability and competitiveness. Most of the time, however, the reliability aspect has a minor, if any, role in such a process. In reality disruption of the …
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Fatigue Mitigation Effects of En-Route Napping on Commercial Airline Pilots Flying International Routes
… aircraft and the evolution of the commercial airline industry has provided new opportunities for air carriers to fly longer range international route segments while deregulation, industry consolidation, and the constant drive to reduce costs wherever possible has pressured airline managements …
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Empirical investigations of properties of robust aircraft routing models
The airline schedule planning process is an important component of airline operations, and it involves considerably complex problems. This research focuses on the aircraft routing phase. We introduce the concept of robustness in aircraft routing problems, and find solutions that can stand …
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Integrated Aircraft Fleeting, Routing, and Crew Pairing Models and Algorithms for the Airline Industry
… steadily for the past three decades since the airline deregulation in 1978. With competition also becoming more intense, airline companies have been trying to enhance their market shares and profit margins by composing favorable flight schedules and by efficiently allocating their resources of …
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An Airspace Planning and Collaborative Decision Making Model Under Safety, Workload, and Equity Considerations
… flight safety, air traffic control workload, and airline equity constraints. Novel contributions of this research include three-dimensional probabilistic conflict analyses, the derivation of valid inequalities to tighten the conflict safety representation constraints, the development of workload …