Download or read book Optimization based models and algorithms for routing and scheduling with time window constraints written by Ioannis Alkiviadis Koskosidis and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimization Based Models and Algorithms for Routing and Scheduling with Time Window Contraints written by Ioannis Alkiviadis Koskosidis and published by . This book was released on 1988 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Vehicle Routing Problem written by Paolo Toth and published by . This book was released on 2002 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Column Generation written by Guy Desaulniers and published by Springer Science & Business Media. This book was released on 2006-03-20 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Column Generation is an insightful overview of the state of the art in integer programming column generation and its many applications. The volume begins with "A Primer in Column Generation" which outlines the theory and ideas necessary to solve large-scale practical problems, illustrated with a variety of examples. Other chapters follow this introduction on "Shortest Path Problems with Resource Constraints," "Vehicle Routing Problem with Time Window," "Branch-and-Price Heuristics," "Cutting Stock Problems," each dealing with methodological aspects of the field. Three chapters deal with transportation applications: "Large-scale Models in the Airline Industry," "Robust Inventory Ship Routing by Column Generation," and "Ship Scheduling with Recurring Visits and Visit Separation Requirements." Production is the focus of another three chapters: "Combining Column Generation and Lagrangian Relaxation," "Dantzig-Wolfe Decomposition for Job Shop Scheduling," and "Applying Column Generation to Machine Scheduling." The final chapter by François Vanderbeck, "Implementing Mixed Integer Column Generation," reviews how to set-up the Dantzig-Wolfe reformulation, adapt standard MIP techniques to the column generation context (branching, preprocessing, primal heuristics), and deal with specific column generation issues (initialization, stabilization, column management strategies).
Download or read book Vehicle Routing and Scheduling with Time Window Constraints written by Marius M. Solomon and published by . This book was released on 1983 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fleet Management and Logistics written by Teodor G. Crainic and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: TEODOR GABRIEL CRAINIC, DIRECTOR The Centre for Research on Transportation (C.R.T.) was founded in 1971 by the Universite de Montreal. From 1988 on, it is jointly managed by the Universite de Montreal and its affiliated schools, the Ecole des Hautes Etudes Commerciales and Ecole Poly technique. Professors, students and researchers from many institutions in the Montreal area join forces at the C.R.T. to analyze transportation, logistics and telecommunication systems from a multidisciplinary perspective. The C.R.T. pursues three major, complementary objectives: training of high-level specialists; the advancement of knowledge and technology; the transfer of technology towards industry and the public sector. Its main field of expertise is the develop ment of quantitative and computer-based models and methods for the analysis of urban, regional and intercity transportation networks, as well as telecommunication systems. This applies to the study of passenger and commodity flows, as well as to the socioeconomic aspects of transportation: policy, regulation, economics. The twenty-fifth anniversary of the C.R.T. offered the opportunity to evaluate past accomplishments and to identify future trends and challenges. Five colloquia were thus organized on major research and application themes that also reflected our main research areas. They gathered together internationally renowned researchers who linked recent scientific and technological advances to modeling and methodological challenges waiting to be tackled, particularly concerning new problems and applica tions, and the increasingly widespread use of new technologies.
Download or read book Quantitative Approaches to Distribution Logistics and Supply Chain Management written by Andreas Klose and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing customer needs, the globalization of markets and the evolution of e-commerce add to the complexity of logistic processes. In today's business, it is well understood that an effective management of logistic processes is impossible without the use of computer-based tools and quantitative methods. This book presents in a systematic way quantitative approaches to distribution logistics and supply chain management. The main orientation of the book is towards practical problem solving, and numerous case studies and practical applications are presented. The topics covered include: supply chain management, revers logistics, e-commerce, facility location and network planning, vehicle routing, warehousing, inventory control.
Download or read book Robust Optimization for Airline Scheduling and Vehicle Routing written by Da Lu and published by . This book was released on 2014 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Robust optimization is an emerging modeling approach to make decisions under uncertainty. It provides an alternative framework to stochastic optimization where operational parameters are random and do not assume any probability distribution. In this thesis, we study three important problems in routing and scheduling under uncertainty, namely, the crew pairing problem, the shortest path problem with resource constraints, and the vehicle routing problem with time windows. We present robust optimization models and propose novel solution approaches, and perform extensive numerical testing to validate the models and solutions. The crew pairing problem finds a set of legal pairings with minimum cost to cover a set of flights. An optimal solution for the deterministic case, however, is often found to be far from optimal or even infeasible when implemented due to the several uncertainties inherent to the airline industry. We present a robust crew pairing formulation where time between flights may vary within an interval. The robust model determines a solution that minimizes crew cost and provides protection against disruptions with a specified level. A column generation approach is presented to solve the robust crew pairing problem. The robust model and the solution approach are tested on a set of instances based on an European airline. The solutions are more robust than the deterministic ones under simulated disruptions. The shortest path problem with resource constraints (SPPRC) is an important problem that appears as a subproblem in many routing and scheduling problems. The second study in the thesis focuses on the robust SPPRC where both cost and resource consumptions are random. The robust SPPRC determines a minimum cost path that is feasible when a number of variations occur for each resource. We present a mixed-integer programming (MIP) model that is equivalent to the robust SPPRC model, and develop graph reduction techniques and two solution methods. The first solution method is a sequential algorithm that solves a series of deterministic SPPRC. The second is a modified label-setting algorithm that uses a new dominance rule. Numerical testing shows that the modified label-setting algorithm outperforms the sequential algorithm and the MIP model. The third problem studied is the vehicle routing problem with time windows under uncertain customer demands. The robust model determines a set of routes with minimum cost such that each customer is served exactly once within the time window and each route is feasible when a number of customers change their demands. We propose a branch-and-price-and-cut algorithm and a novel separation strategy to determine valid inequalities that make use of data uncertainty. The model and solution methodology are tested on instances generated based on the Solomon instances. The robust solutions provide significant protection against random changes in customer demands compared to the deterministic solutions.
Download or read book Optimization Models and Algorithms for Large scale Capacity Constrained Pick up and Delivery Problems with Time Windows written by Raphaël Tardy and published by . This book was released on 2005 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Major package delivery companies employ hundreds of thousands of people, generate billions of dollars in revenues and operate very large fleets of ground vehicles ranging from custom- built package cars to large tractors and trailers. A crucial point for the profitability of these companies is, for a given level of service, to be able to run their operations at the lowest possible cost. In this thesis, we will contemplate the problem of the scheduling and routing on a regional and daily basis of the large tractor and trailer fleet of a large package delivery company. Our aim is to design a method for building the schedules associated with minimal operating costs. We consider deterministic situations in which all parameters are known exactly and we exclude possibilities of disruptions. Nonetheless even with these simplifications, the problem we consider is complex and large-scale, containing a very large number of constraints and parameters. Throughout this thesis, we examine different theoretical approaches including optimization models and algorithms. We implement some of these approaches in order to get practical results which can be implemented in practice.
Download or read book Vehicle Routing written by Bruce L. Golden and published by North Holland. This book was released on 1988 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. This collection of original research papers is dedicated to the analysis and solution of vehicle routing problems. Vehicle routing is a branch of operations research that has attracted a great deal of research attention over the years. The accumulated body of knowledge has resulted in algorithms and insights that have enabled companies and organizations in both the public and private sectors to save from 5% to 10% on distribution related costs. The volume brings together, in a comprehensive way, the theory and practice of vehicle routing in book form for the first time.
Download or read book Vehicle Routing written by Paolo Toth and published by SIAM. This book was released on 2014-12-05 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle routing problems, among the most studied in combinatorial optimization, arise in many practical contexts (freight distribution and collection, transportation, garbage collection, newspaper delivery, etc.). Operations researchers have made significant developments in the algorithms for their solution, and Vehicle Routing: Problems, Methods, and Applications, Second Edition reflects these advances. The text of the new edition is either completely new or significantly revised and provides extensive and complete state-of-the-art coverage of vehicle routing by those who have done most of the innovative research in the area; it emphasizes methodology related to specific classes of vehicle routing problems and, since vehicle routing is used as a benchmark for all new solution techniques, contains a complete overview of current solutions to combinatorial optimization problems. It also includes several chapters on important and emerging applications, such as disaster relief and green vehicle routing.
Download or read book Exact and Heuristic Scheduling Algorithms written by Frank Werner and published by MDPI. This book was released on 2020-03-18 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book presents new results in the area of the development of exact and heuristic scheduling algorithms. It contains eight articles accepted for publication for a Special Issue in the journal Algorithms. The book presents new algorithms, e.g., for flow shop, job shop, and parallel machine scheduling problems. The particular articles address subjects such as a heuristic for the routing and scheduling problem with time windows, applied to the automotive industry in Mexico, a heuristic for the blocking job shop problem with tardiness minimization based on new neighborhood structures, fast heuristics for the Euclidean traveling salesman problem or a new mathematical model for the period-aggregated resource leveling problem with variable job duration, and several others.
Download or read book Network Routing written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook
Download or read book Models for Practical Routing Problems in Logistics written by S. P. Anbuudayasankar and published by Springer. This book was released on 2014-07-08 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with complex variants of Travelling Salesman Problem (TSP) and Vehicle Routing Problem (VRP) within the manufacturing and service industries. The objective is to develop heuristics for these supply chain problems in order to offer practical solutions to improve operational efficiency. These heuristics are evaluated using benchmark and derived data-sets. Case studies pertaining to logistics in different industries including textile machinery manufacturing and banking are also included to demonstrate the created heuristics. High competition in today’s global market has forced the organizations to invest in and focus on their logistics system. The critical function of logistics is the transportation within and across various supply chain entities. Both supply and distribution procedure require effective transportation management. A small improvement in routing problems can lead to huge logistics savings in absolute terms. This book should appeal to executives, researchers and consultants seeking supply chain management solutions.
Download or read book Network Optimization with Time Window Constrained Routing and Scheduling written by Fan Yang and published by . This book was released on 1995 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integration of Information and Optimization Models for Routing in City Logistics written by Jan Ehmke and published by Springer Science & Business Media. This book was released on 2012-05-01 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: As urban congestion continues to be an ever increasing problem, routing in these settings has become an important area of operations research. This monograph provides cutting-edge research, utilizing the recent advances in technology, to quantify the value of dynamic, time-dependent information for advanced vehicle routing in city logistics. The methodology of traffic data collection is enhanced by GPS based data collection, resulting in a comprehensive number of travel time records. Data Mining is also applied to derive dynamic information models as required by time-dependent optimization. Finally, well-known approaches of vehicle routing are adapted in order to handle dynamic information models. This book interweaves the usually distinct areas of traffic data collection, information retrieval and time-dependent optimization by an integrated methodological approach, which refers to synergies of Data Mining and Operations Research techniques by example of city logistics applications. These procedures will help improve the reliability of logistics services in congested urban areas.
Download or read book Handbook of Scheduling written by Joseph Y-T. Leung and published by CRC Press. This book was released on 2004-04-27 with total page 1215 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers in management, industrial engineering, operations, and computer science have intensely studied scheduling for more than 50 years, resulting in an astounding body of knowledge in this field. Handbook of Scheduling: Algorithms, Models, and Performance Analysis, the first handbook on scheduling, provides full coverage of the most recent and advanced topics on the subject. It assembles researchers from all relevant disciplines in order to facilitate cross-fertilization and create new scheduling insights. The book comprises six major parts, each of which breaks down into smaller chapters: · Part I introduces materials and notation, with tutorials on complexity theory and algorithms for the minimization of makespan, total completion time, dual objectives, maximum lateness, the number of late jobs, and total tardiness. · Part II is devoted to classical scheduling problems. · Part III explores scheduling models that originate in computer science, operations research, and management science. · Part IV examines scheduling problems that arise in real-time systems, focusing on meeting hard deadline constraints while maximizing machine utilization. · Part V discusses stochastic scheduling and queueing networks, highlighting jobs that are not deterministic. · Part VI covers applications, discussing scheduling problems in airline, process, and transportation industries, as well as in hospitals and educational institutions.
