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Author : George L. Nemhauser
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (373 download)
Download or read book Air Traffic Congestion Delay Optimization written by George L. Nemhauser and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Joseph Frankovich
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (828 download)
Download or read book Air Traffic Flow Management at Airports written by Michael Joseph Frankovich and published by . This book was released on 2012 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cost of air traffic delays is well documented, and furthermore, it is known that the significant proportion of delays is incurred at airports. Much of the air traffic flow management literature focuses on traffic flows between airports in a network, and when studies have focused on optimizing airport operations, they have focused largely on a single aspect at a time. In this thesis, we fill an important gap in the literature by proposing unified approaches, on both strategic and tactical levels, to optimizing the traffic flowing through an airport. In particular, we consider the entirety of key problems faced at an airport: a) selecting a runway configuration sequence; b) determining the balance of arrivals and departures to be served; c) assigning flights to runways and determining their sequence; d) determining the gate-holding duration of departures and speedcontrol of arrivals; and e) routing flights to their assigned runway and onwards within the terminal area. In the first part, we propose an optimization approach to solve in a unified manner the strategic problems (a) and (b) above, which are addressed manually today, despite their importance. We extend the model to consider a group of neighboring airports where operations at different airports impact each other due to shared airspace. We then consider a more tactical, flight-by-flight, level of optimization, and present a novel approach to optimizing the entire Airport Operations Optimization Problem, made up of subproblems (a) - (e) above. Until present, these have been studied mainly in isolation, but we present a framework which is both unified and tractable, allowing the possibility of system-optimal solutions in a practical amount of time. Finally, we extend the models to consider the key uncertainties in a practical implementation of our methodologies, using robust and stochastic optimization. Notable uncertainties are the availability of runways for use, and flights' earliest possible touchdown/takeoff times. We then analyze the inherent trade-off between robustness and optimality. Computational experience using historic and manufactured datasets demonstrates that our approaches are computationally tractable in a practical sense, and could result in cost benefits of at least 10% over current practice.
Author : Daniel Delahaye
Publisher : John Wiley & Sons
ISBN 13 : 1118743717
Total Pages : 191 pages
Book Rating : 4.1/5 (187 download)
Download or read book Modeling and Optimization of Air Traffic written by Daniel Delahaye and published by John Wiley & Sons. This book was released on 2013-07-01 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines the research activities of the authors, both of whom are researchers at Ecole Nationale de l’Aviation Civile (French National School of Civil Aviation), and presents their findings from the last 15 years. Their work uses air transport as its focal point, within the realm of mathematical optimization, looking at real life problems and theoretical models in tandem, and the challenges that accompany studying both approaches. The authors’ research is linked with the attempt to reduce air space congestion in Western Europe, USA and, increasingly, Asia. They do this through studying stochastic optimization (particularly artificial evolution), the sectorization of airspace, route distribution and takeoff slots, and by modeling airspace congestion. Finally, the authors discuss their short, medium and long term research goals. They hope that their work, although related to air transport, will be applied to other fields, such is the transferable nature of mathematical optimization. At the same time, they intend to use other areas of research, such as approximation and statistics to complement their continued inquiry in their own field. Contents 1. Introduction. Part 1. Optimization and Artificial Evolution 2. Optimization: State of the Art. 3. Genetic Algorithms and Improvements. 4. A new concept for Genetic Algorithms based on Order Statistics. Part 2. Applications to Air Traffic Control 5. Air Traffic Control. 6. Contributions to Airspace Sectorization. 7. Contribution to Traffic Assignment. 8. Airspace Congestion Metrics. 9. Conclusion and Future Perspectives. About the Authors Daniel Delahaye works for Ecole Nationale de l’Aviation Civile (French National School of Civil Aviation) in France. Stéphane Puechmorel works for Ecole Nationale de l’Aviation Civile (French National School of Civil Aviation) in France.
Author : Yufeng Tu
Publisher : VDM Verlag
ISBN 13 : 3836422301
Total Pages : 100 pages
Book Rating : 4.8/5 (364 download)
Download or read book Air Transportation System Performance written by Yufeng Tu and published by VDM Verlag. This book was released on 2007 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. National Airspace System (NAS) is inherently highly stochastic. Yet, many existing decision-support tools for air traffic flow management take a deterministic approach to problem solving. This study aims to focus on the random and dynamic nature of flight departure delays to provide a more ac-curate picture of the airspace traffic situation, improve the prediction of the airspace congestion, and advance the level of decision making in aviation systems. Several models were proposed in this work based on the trends and patterns demonstrated by the delays. These models show reasonable goodness of fit, robustness to the choice of the model parameters, and good predictive capabilities. They could further advance the Enhanced Traffic Management System that is currently adopted by the Federal Aviation Administration. Mathematical algorithms used in this work can be adapted to similar pro-blems in other fields. The book is addressed to professionals and researchers in Air Transportations and Statistics.
Author : Dimitris Bertsimas
Publisher :
ISBN 13 : 9781886529199
Total Pages : 587 pages
Book Rating : 4.5/5 (291 download)
Download or read book Introduction to Linear Optimization written by Dimitris Bertsimas and published by . This book was released on 1997-01-01 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Prabhu Manyem
Publisher : Cambridge Scholars Publishing
ISBN 13 : 152756925X
Total Pages : 149 pages
Book Rating : 4.5/5 (275 download)
Download or read book Disruption Recovery in Air Traffic written by Prabhu Manyem and published by Cambridge Scholars Publishing. This book was released on 2021-05-06 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disruptions to commercial airline schedules are frequent and can inflict significant costs. This is the first book to treat the optimisation of disruption management (irregular operations) in air traffic from a common good perspective that addresses the concerns of airlines, airports, air traffic service providers and, most importantly of all, the travelling public. It describes a number of disruption management systems which are already in place at air traffic service (ATC) providers such as Airservices Australia. As such, the book will be of immense value to ATC providers, and will serve as a reference point for planners at airline operations centres who control movements within a 48-hour window. The optimisation techniques described here will also be very useful to academics and postgraduate students in civil aviation and operations research.
Author : Christopher J. Mayer
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (248 download)
Download or read book Network Effects, Congestion Externalities, and Air Traffic Delays written by Christopher J. Mayer and published by . This book was released on 2002 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We examine two factors that might explain the extent of air traffic delays in the United States: network benefits due to hubbing and congestion externalities. Airline hubs enable passengers to cross-connect to many destinations, thus creating network benefits that increase in the number of markets served from the hub. Delays are the equilibrium outcome of a hub airline equating high marginal benefits from hubbing with the marginal cost of delays. Congestion externalities are created when airlines do not consider that adding flights may lead to increased delays for other air carriers. In this case, delays represent a market failure. Using data on all domestic flights by major US carriers from 1988-2000, we find that delays are increasing in hubbing activity at an airport and decreasing in market concentration but the hubbing effect dominates empirically. In addition, most delays due to hubbing actually accrue to the hub carrier, primarily because the hub carrier clusters its flights in short spans of time in order to maximize passenger interconnections. Non hub flights at hub airports operate with minimal additional travel time by avoiding the congested peak connecting times of the hub carrier. These results suggest that an optimal congestion tax would have a relatively small impact on air traffic delays since hub carriers already internalize most of the costs of hubbing and a tax that did not take the network benefits of hubbing into account could reduce social welfare"--National Bureau of Economic Research web site.
Author : Lucio Bianco
Publisher : Springer Science & Business Media
ISBN 13 : 3662046326
Total Pages : 232 pages
Book Rating : 4.6/5 (62 download)
Download or read book New Concepts and Methods in Air Traffic Management written by Lucio Bianco and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a compendium of papers presented during the International Workshop on Air Traffic Management, which took place in Capri, Italy, on September 26-30, 1999. The workshop was organized by Italian National Research Council in co-operation with the University of Rome "Tor Vergata", and the Massachusetts Institute of Technology (MIT). This was the fifth in a series of meetings held periodically over a ten-year span for the purpose of encouraging an exchange of views and fmdings by scientists in the field of Air Traffic Management (A TM). The papers presented at the workshop dealt with a wide range of topics and covered different aspects that are currently important in Air Traffic Control and Air Traffic Management. This volume contains only a subset of the papers presented, namely the ones that addressed the main area emphasis in the workshop, new concepts and methods. The subject of the first two papers is Collaborative Decision Making (CDM), a concept which embodies, to a large extent, the new philosophy of partial decentralization and increased delegation of responsibilities to users in A TM operations. In the first of these papers Wambsganss describes the original CDM project and its initial implementation in the form of the Ground Delay Program Enhancements. He also provides a brief description of some of the tools that have been developed as part of the CDM effort and identifies future research and development requirements.
Author : Johann Dréo
Publisher : Springer Science & Business Media
ISBN 13 : 3540309667
Total Pages : 373 pages
Book Rating : 4.5/5 (43 download)
Download or read book Metaheuristics for Hard Optimization written by Johann Dréo and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains case studies from engineering and operations research Includes commented literature for each chapter
Author : Nicolas Durand
Publisher : John Wiley & Sons
ISBN 13 : 1848218109
Total Pages : 214 pages
Book Rating : 4.8/5 (482 download)
Download or read book Metaheuristics for Air Traffic Management written by Nicolas Durand and published by John Wiley & Sons. This book was released on 2016-01-19 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Air Traffic Management involves many different services such as Airspace Management, Air Traffic Flow Management and Air Traffic Control. Many optimization problems arise from these topics and they generally involve different kinds of variables, constraints, uncertainties. Metaheuristics are often good candidates to solve these problems. The book models various complex Air Traffic Management problems such as airport taxiing, departure slot allocation, en route conflict resolution, airspace and route design. The authors detail the operational context and state of art for each problem. They introduce different approaches using metaheuristics to solve these problems and when possible, compare their performances to existing approaches
Author : National Research Council (U.S.). Transportation Research Board. Committee for a Study of Public-Sector Requirements for a Small Aircraft Transportation System
Publisher : Transportation Research Board
ISBN 13 : 0309072484
Total Pages : 135 pages
Book Rating : 4.3/5 (9 download)
Download or read book Future Flight written by National Research Council (U.S.). Transportation Research Board. Committee for a Study of Public-Sector Requirements for a Small Aircraft Transportation System and published by Transportation Research Board. This book was released on 2002 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gaetan Marceau Caron
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (896 download)
Download or read book Optimization and Uncertainty Handling in Air Traffic Management written by Gaetan Marceau Caron and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we investigate the issue of optimizing the aircraft operators' demand with the airspace capacity by taking into account uncertainty in air traffic management. In the first part of the work, we identify the main causes of uncertainty of the trajectory prediction (TP), the core component underlying automation in ATM systems. We study the problem of online parameter-tuning of the TP during the climbing phase with the optimization algorithm CMA-ES. The main conclusion, corroborated by other works in the literature, is that ground TP is not sufficiently accurate nowadays to support fully automated safety-critical applications. Hence, with the current data sharing limitations, any centralized optimization system in Air Traffic Control should consider the human-in-the-loop factor, as well as other uncertainties. Consequently, in the second part of the thesis, we develop models and algorithms from a network global perspective and we describe a generic uncertainty model that captures flight trajectories uncertainties and infer their impact on the occupancy count of the Air Traffic Control sectors. This usual indicator quantifies coarsely the complexity managed by air traffic controllers in terms of number of flights. In the third part of the thesis, we formulate a variant of the Air Traffic Flow and Capacity Management problem in the tactical phase for bridging the gap between the network manager and air traffic controllers. The optimization problem consists in minimizing jointly the cost of delays and the cost of congestion while meeting sequencing constraints. In order to cope with the high dimensionality of the problem, evolutionary multi-objective optimization algorithms are used with an indirect representation and some greedy schedulers to optimize flight plans. An additional uncertainty model is added on top of the network model, allowing us to study the performances and the robustness of the proposed optimization algorithm when facing noisy context. We validate our approach on real-world and artificially densified instances obtained from the Central Flow Management Unit in Europe.
Author : Peter Belobaba
Publisher : John Wiley & Sons
ISBN 13 : 1118881141
Total Pages : 536 pages
Book Rating : 4.1/5 (188 download)
Download or read book The Global Airline Industry written by Peter Belobaba and published by John Wiley & Sons. This book was released on 2015-07-06 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extensively revised and updated edition of the bestselling textbook, provides an overview of recent global airline industry evolution and future challenges Examines the perspectives of the many stakeholders in the global airline industry, including airlines, airports, air traffic services, governments, labor unions, in addition to passengers Describes how these different players have contributed to the evolution of competition in the global airline industry, and the implications for its future evolution Includes many facets of the airline industry not covered elsewhere in any single book, for example, safety and security, labor relations and environmental impacts of aviation Highlights recent developments such as changing airline business models, growth of emerging airlines, plans for modernizing air traffic management, and opportunities offered by new information technologies for ticket distribution Provides detailed data on airline performance and economics updated through 2013
Author : Yasmine El Alj
Publisher :
ISBN 13 :
Total Pages : 147 pages
Book Rating : 4.:/5 (527 download)
Download or read book Estimating the True Extent of Air Traffic Delays written by Yasmine El Alj and published by . This book was released on 2003 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Lluis Soler
Publisher :
ISBN 13 : 9781303489785
Total Pages : 84 pages
Book Rating : 4.4/5 (897 download)
Download or read book Optimal Re-routes and Ground Delays Using a Route-based Aggregate Air Traffic Flow Model written by Lluis Soler and published by . This book was released on 2013 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Airspace System (NAS) is very complex and with a high level of uncertainty. For this reason, developing an automated conflict resolution tool at NAS level is presented as a big challenge. One way to address the problem is by using aggregate models, which can significantly reduce its dimension and complexity. Significant effort has been made to develop an air traffic aggregate model capable to effectively state and solve the problem. In this study, a Route-Based Aggregate Model is developed and tested. It consists in a modification of several existing models and overcomes some issues identified in previous aggregate models. It allows the implementation of Traffic Flow Management conventional controls, such as ground delay and rerouting. These control strategies can be used to avoid congestion conflicts based on sectors and airports capacity as well as regions affected by convective weather. The optimization problem is posed as a Linear Programming routine, which guarantees an optimal solution that minimizes the total accumulated delay required to avoid such capacity conflicts. The solutions can be directly translated into specific instructions at aircraft level, via modification of the times of departure and flight plans. The model is integrated with Future Air Traffic Management Concepts Evaluation Tool (FACET), a state of the art air traffic simulation tool, and uses its files as both input and output. This allows simulating in FACET the solution obtained from the aggregate domain. The approach is validated by applying it in three realistic scenarios at different scales. Results show that, for time horizons larger than 2 hours, the accuracy of the aggregate model is similar to other simulation tools. Also, the modified flight plans, the product of the disaggregated solution, reduce the number of capacity conflicts in the FACET simulation. Future research will study the robustness of these solutions and determine the most appropriate scenarios where to implement the aggregate approach.
Author : Don Graham
Publisher : CRC Press
ISBN 13 : 1003811825
Total Pages : 120 pages
Book Rating : 4.0/5 (38 download)
Download or read book Applications of Heuristic Algorithms to Optimal Road Congestion Pricing written by Don Graham and published by CRC Press. This book was released on 2023-10-04 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Road congestion imposes major financial, social, and environmental costs. One solution is the operation of high-occupancy toll (HOT) lanes. This book outlines a method for dynamic pricing for HOT lanes based on non-linear programming (NLP) techniques, finite difference stochastic approximation, genetic algorithms, and simulated annealing stochastic algorithms, working within a cell transmission framework. The result is a solution for optimal flow and optimal toll to minimize total travel time and reduce congestion. ANOVA results are presented which show differences in the performance of the NLP algorithms in solving this problem and reducing travel time, and econometric forecasting methods utilizing vector autoregressive techniques are shown to successfully forecast demand. The book compares different optimization approaches It presents case studies from around the world, such as the I-95 Express HOT Lane in Miami, USA Applications of Heuristic Algorithms to Optimal Road Congestion Pricing is ideal for transportation practitioners and researchers.
Author : Michael Jacob Bloem
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (91 download)
Download or read book Optimization and Analytics for Air Traffic Management written by Michael Jacob Bloem and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The air traffic management system is important to the United States' economy and way of life. Furthermore, it is complex and largely controlled by human decision makers. We studied and learned from these expert decision makers to facilitate the transition to an increasingly autonomous air traffic management system that leverages the strengths of both computer systems and humans to provide greater value to stakeholders. In particular, we constructed decision models and corresponding solution algorithms that enable decision-support tool development. Our approach to building the decision models and algorithms leveraged expert input and feedback, operational decision data analytics, fast-time simulations, and human-in-the-loop simulations. We utilized and extended techniques from optimization, dynamic programming, and machine learning both for developing solution algorithms and for making inferences about decisions based on operational data. In this dissertation we discuss our research on three types of decisions in the air traffic management system. The first is faced by supervisors of air traffic controllers: how to configure available airspace, controllers, and other resources to ensure safe and efficient operations in a region of airspace over a period of time. The second type of decision is faced by airlines: how to assign a set of flights to a set of slots in an Airspace Flow Program. The third type of decision is faced by air traffic flow managers: when to implement a Ground Delay Program.
