Optimal Transportation Networks

Optimal Transportation Networks PDF Author: Marc Bernot
Publisher: Springer Science & Business Media
ISBN: 3540693149
Category : Business & Economics
Languages : en
Pages : 204

Get Book Here

Book Description
The transportation problem can be formalized as the problem of finding the optimal way to transport a given measure into another with the same mass. In contrast to the Monge-Kantorovitch problem, recent approaches model the branched structure of such supply networks as minima of an energy functional whose essential feature is to favour wide roads. Such a branched structure is observable in ground transportation networks, in draining and irrigation systems, in electrical power supply systems and in natural counterparts such as blood vessels or the branches of trees. These lectures provide mathematical proof of several existence, structure and regularity properties empirically observed in transportation networks. The link with previous discrete physical models of irrigation and erosion models in geomorphology and with discrete telecommunication and transportation models is discussed. It will be mathematically proven that the majority fit in the simple model sketched in this volume.

Optimal Transportation Networks

Optimal Transportation Networks PDF Author: Marc Bernot
Publisher: Springer Science & Business Media
ISBN: 3540693149
Category : Business & Economics
Languages : en
Pages : 204

Get Book Here

Book Description
The transportation problem can be formalized as the problem of finding the optimal way to transport a given measure into another with the same mass. In contrast to the Monge-Kantorovitch problem, recent approaches model the branched structure of such supply networks as minima of an energy functional whose essential feature is to favour wide roads. Such a branched structure is observable in ground transportation networks, in draining and irrigation systems, in electrical power supply systems and in natural counterparts such as blood vessels or the branches of trees. These lectures provide mathematical proof of several existence, structure and regularity properties empirically observed in transportation networks. The link with previous discrete physical models of irrigation and erosion models in geomorphology and with discrete telecommunication and transportation models is discussed. It will be mathematically proven that the majority fit in the simple model sketched in this volume.

Urban Transportation Networks

Urban Transportation Networks PDF Author: Yosef Sheffi
Publisher: Prentice Hall
ISBN:
Category : Political Science
Languages : en
Pages : 426

Get Book Here

Book Description


Modeling Dynamic Transportation Networks

Modeling Dynamic Transportation Networks PDF Author: Bin Ran
Publisher: Springer Science & Business Media
ISBN: 3642802303
Category : Business & Economics
Languages : en
Pages : 365

Get Book Here

Book Description
This book seeks to summarize our recent progress in dynamic trans portation network modeling. It concentrates on ideal dynamic network models based on actual travel times and their corresponding solution algorithms. In contrast, our first book DynamIc Urban Transportation Network Models - The ory and Implications for Intelligent Vehicle-Hzghway Systems (Springer-Verlag, 1994) focused on instantaneous dynamic network models. Comparing the two books, the major differences can be summarized as follows: 1. This book uses the variational inequality problem as the basic formulation approach and considers the optimal control problem as a subproblem for solution purposes. The former book used optimal control theory as the basic formulation approach, which caused critical problems in some circumstances. 2. This book focuses on ideal dynamic network models based on actual travel times. The former book focused on instantaneous dynamic network models based on currently prevailing travel times. 3. This book formulates a stochastic dynamic route choice model which can utilize any possible route choice distribution function instead of only the logit function. 4. This book reformulates the bilevel problem of combined departure time/ route choice as a one-level variational inequality. 5. Finally, a set of problems is provided for classroom use. In addition, this book offers comprehensive insights into the complexity and challenge of applying these dynamic network models to Intelligent Trans portation Systems (ITS). Nevertheless, the models in this text are not yet fully evaluated and are subject to revision based on future research.

Sustainable Transportation Networks

Sustainable Transportation Networks PDF Author: Anna Nagurney
Publisher: Edward Elgar Publishing
ISBN:
Category : Business & Economics
Languages : en
Pages : 312

Get Book Here

Book Description
This work considers whether transportation networks are sustainable, asking if they can last, given the growing demands on networks, and the need to alleviate the associated negative impacts. The author offers a foundation for formulation, analysis and computation of possible solutions.

Evolving Transportation Networks

Evolving Transportation Networks PDF Author: Feng Xie
Publisher: Springer Science & Business Media
ISBN: 1441998047
Category : Political Science
Languages : en
Pages : 282

Get Book Here

Book Description
Over the last two centuries, the development of modern transportation has significantly transformed human life. The main theme of this book is to understand the complexity of transportation development and model the process of network growth including its determining factors, which may be topological, morphological, temporal, technological, economic, managerial, social or political. Using multidimensional concepts and methods, the authors develop a holistic framework to represent network growth as an open and complex process with models that demonstrate in a scientific way how numerous independent decisions made by entities such as travelers, property owners, developers, and public jurisdictions could result in a coherent network of facilities on the ground. Models are proposed from innovative perspectives including self-organization, degeneration, and sequential connection to interpret the evolutionary growth of transportation networks in explicit consideration of independent economic and regulatory initiatives. Employing these models, the authors survey a series of topics ranging from network hierarchy and topology to first mover advantage. The authors demonstrate, with a wide spectrum of empirical and theoretical evidence, that network growth follows a path that is not only logical in retrospect, but also predictable and manageable from a planning perspective. In the larger scheme of innovative transportation planning, this book provides a re-consideration of conventional planning practice and sets the stage for further development on the theory and practice of the next-generation, evolutionary planning approach in transportation, making it of interest to scholars and practitioners alike in the field of transportation .

The Geography of Transport Systems

The Geography of Transport Systems PDF Author: Jean-Paul Rodrigue
Publisher: Routledge
ISBN: 1136777326
Category : Science
Languages : en
Pages : 432

Get Book Here

Book Description
Mobility is fundamental to economic and social activities such as commuting, manufacturing, or supplying energy. Each movement has an origin, a potential set of intermediate locations, a destination, and a nature which is linked with geographical attributes. Transport systems composed of infrastructures, modes and terminals are so embedded in the socio-economic life of individuals, institutions and corporations that they are often invisible to the consumer. This is paradoxical as the perceived invisibility of transportation is derived from its efficiency. Understanding how mobility is linked with geography is main the purpose of this book. The third edition of The Geography of Transport Systems has been revised and updated to provide an overview of the spatial aspects of transportation. This text provides greater discussion of security, energy, green logistics, as well as new and updated case studies, a revised content structure, and new figures. Each chapter covers a specific conceptual dimension including networks, modes, terminals, freight transportation, urban transportation and environmental impacts. A final chapter contains core methodologies linked with transport geography such as accessibility, spatial interactions, graph theory and Geographic Information Systems for transportation (GIS-T). This book provides a comprehensive and accessible introduction to the field, with a broad overview of its concepts, methods, and areas of application. The accompanying website for this text contains a useful additional material, including digital maps, PowerPoint slides, databases, and links to further reading and websites. The website can be accessed at: http://people.hofstra.edu/geotrans This text is an essential resource for undergraduates studying transport geography, as well as those interest in economic and urban geography, transport planning and engineering.

Schedule-Based Modeling of Transportation Networks

Schedule-Based Modeling of Transportation Networks PDF Author: Nigel H. M. Wilson
Publisher: Springer Science & Business Media
ISBN: 0387848126
Category : Technology & Engineering
Languages : en
Pages : 319

Get Book Here

Book Description
"Schedule-Based Modeling of Transportation Networks: Theory and Applications" follows the book Schedule-Based Dynamic Transit Modeling, published in this series in 2004, recognizing the critical role that schedules play in transportation systems. Conceived for the simulation of transit systems, in the last few years the schedule-based approach has been expanded and applied to operational planning of other transportation schedule services besides mass transit, e.g. freight transport. This innovative approach allows forecasting the evolution over time of the on-board loads on the services and their time-varying performance, using credible user behavioral hypotheses. It opens new frontiers in transportation modeling to support network design, timetable setting, and investigation of congestion effects, as well as the assessment of such new technologies, such as users system information (ITS technologies).

Securing Global Transportation Networks

Securing Global Transportation Networks PDF Author: Luke Ritter
Publisher: McGraw Hill Professional
ISBN: 0071709762
Category : Technology & Engineering
Languages : en
Pages : 314

Get Book Here

Book Description
Viable, value-creating solutions for securing global transportation networks Securing Global Transportation Networks demonstrates how improved security processes can create value across all the business functions throughout an entire value chain. Readers will learn a whole new security management philosophy, as explained through domestic and international examples and case studies ranging from major retailers such as Home Depot to shipping giants such as Maersk and FedEx. This book also looks ahead to future developments and "best practices" for the future. If you're charged with making or evaluating transportation security decisions, you'll find the tools you need to succeed -- and prosper -- with the Total Security Management approach. Explains globalization's impact on transportation networks Creates a framework for realizing a return on security investments by integrating it as a core business process Details how transportation firms, investors, and insurance companies can measure and reward smart security practices that protect a firm's fixed assets, assets in transit, brand equity and goodwill, and human capital

Network Design with Applications to Transportation and Logistics

Network Design with Applications to Transportation and Logistics PDF Author: Teodor Gabriel Crainic
Publisher: Springer Nature
ISBN: 3030640183
Category : Business & Economics
Languages : en
Pages : 668

Get Book Here

Book Description
This book explores the methodological and application developments of network design in transportation and logistics. It identifies trends, challenges and research perspectives in network design for these areas. Network design is a major class of problems in operations research where network flow, combinatorial and mixed integer optimization meet. The analysis and planning of transportation and logistics systems continues to be one of the most important application areas of operations research. Networks provide the natural way of depicting such systems, so the optimal design and operation of networks is the main methodological area of operations research that is used for the analysis and planning of these systems. This book defines the current state of the art in the general area of network design, and then turns to its applications to transportation and logistics. New research challenges are addressed. Network Design with Applications to Transportation and Logistics is divided into three parts. Part I examines basic design problems including fixed-cost network design and parallel algorithms. After addressing the basics, Part II focuses on more advanced models. Chapters cover topics such as multi-facility network design, flow-constrained network design, and robust network design. Finally Part III is dedicated entirely to the potential application areas for network design. These areas range from rail networks, to city logistics, to energy transport. All of the chapters are written by leading researchers in the field, which should appeal to analysts and planners.

The Geography of Transport Systems

The Geography of Transport Systems PDF Author: Jean-Paul Rodrigue
Publisher: Routledge
ISBN: 1134257783
Category : Science
Languages : en
Pages : 297

Get Book Here

Book Description
Mobility is fundamental to economic and social activities, including commuting, manufacturing, or supplying energy. This book focuses on understanding how mobility is linked with geography. It links spatial constraints and attributes with the origin, destination, extent, nature and purpose of movements.