The Traffic Assignment Problem


Book Description

This monograph provides both a unified account of the development of models and methods for the problem of estimating equilibrium traffic flows in urban areas and a survey of the scope and limitations of present traffic models. The development is described and analyzed by the use of the powerful instruments of nonlinear optimization and mathematical programming within the field of operations research. The first part is devoted to mathematical models for the analysis of transportation network equilibria; the second deals with methods for traffic equilibrium problems. This title will interest readers wishing to extend their knowledge of equilibrium modeling and analysis and of the foundations of efficient optimization methods adapted for the solution of large-scale models. In addition to its value to researchers, the treatment is suitable for advanced graduate courses in transportation, operations research, and quantitative economics.




Methods and Models in Transport and Telecommunications


Book Description

One aspect of the new economy is a transition to a networked society, and the emergence of a highly interconnected, interdependent and complex system of networks to move people, goods and information. An example of this is the in creasing reliance of networked systems (e. g. , air transportation networks, electric power grid, maritime transport, etc. ) on telecommunications and information in frastructure. Many of the networks that evolved today have an added complexity in that they have both a spatial structure – i. e. , they are located in physical space but also an a spatial dimension brought on largely by their dependence on infor mation technology. They are also often just one component of a larger system of geographically integrated and overlapping networks operating at different spatial levels. An understanding of these complexities is imperative for the design of plans and policies that can be used to optimize the efficiency, performance and safety of transportation, telecommunications and other networked systems. In one sense, technological advances along with economic forces that encourage the clustering of activities in space to reduce transaction costs have led to more efficient network structures. At the same time the very properties that make these networks more ef ficient have also put them at a greater risk for becoming disconnected or signifi cantly disruptedwh en super connected nodes are removed either intentionally or through a targeted attack.




Airport Slots


Book Description

Over the past several decades, commercial air traffic has been growing at a far greater rate than airport capacity, causing airports to become increasingly congested. How can we accommodate this increased traffic and at the same time alleviate traffic delays resulting from congestion? The response outside the US has been to set a maximum number of slots and use administrative procedures to allocate these among competing airlines, with the most important consideration being 'grandfather rights' to existing carriers. The United States, on the other hand, has used administrative procedures to allocate slots at only four airports. In all other cases, flights have been handled on a first-come, first-served basis, with aircraft queuing for the privilege of landing or taking off from a congested airport. While recognizing the advantages of slot systems in lessening delays, economists have criticized both approaches as being sub-optimal, and have advocated procedures such as slot auctions, peak-load pricing and slot trading to better utilize congested airports. Edited by an international team of air transport economists and drawing on an impressive list of contributors, Airport Slots provides an extremely comprehensive treatment of the subject. It considers the methods currently used to allocate slots and applies economic analysis to each. The book then explains various schemes to increase public welfare by taxing or pricing congestion, and describes alternate slot-allocation schemes, most notably slot auctions. In addition, Airport Slots outlines the complexities involved in slot-allocation methods, including the requirement for multiple slots - a take-off slot at London Heathrow is useless unless there is a landing slot available at Frankfurt for a London Frankfurt flight. Finally, the book explores the economic pitfalls of slot-allocation schemes; for example, controls may not be required if external delay costs are internalized by a dominant carrier at its hub. Airport Slots provides a valuable contribution to the debate on how best to limit airport congestion. The book's comprehensive treatment of the subject matter provides the reader with a 'one-stop' volume to explore airport congestion and slot-allocation schemes, offering valuable insights to academics and practitioners alike.










The Sustainability of Air Transportation


Book Description

This book presents, for the first time, a comprehensive analysis and assessment of the sustainability of the contemporary civil air transport system, examining its three main components: airports, air traffic control, and airlines. It offers an in-depth examination and quantitative insight into the system's current and prospective structure and operations, as well as the related effects and impacts. The sustainability of the air transport system is considered along a global trajectory of growing effects and diminishing and/or stagnating impacts on society and environment under conditions of continuous growth. In doing so, the author examines the situations of users of the system (passengers and freight shippers), air transport operators (airports, air traffic control and airlines), aerospace manufacturers, local and national communities, policymakers and the general public. The book possesses the unique and distinctive feature of providing an analysis and assessment of the air transport system's sustainability through elaboration of its technical/technological, operational, economic, social, environmental and institutional performances and their causality. It is written for advanced graduate and post-graduate students, researchers, planners, stakeholders, and policymakers dealing with the various sustainability issues of the contemporary air transport system.




Cincinnati Police Department Traffic Stops


Book Description

In 2002, the Cincinnati Police Department (CPD) joined with other agencies and organizations to improve police-community relations in the city. This report focuses on the analysis of racial disparities in traffic stops in Cincinnati. The authors find no evidence of racial differences between the stops of black and those of similarly situated nonblack drivers, but some issues can exacerbate the perception of racial bias.







Handbooks in Operations Research and Management Science: Transportation


Book Description

This book contains eleven chapters describing some of the most recent methodological operations research developments in transportation. It is structured around the main transportation modes, and each chapter is written by a group of well-recognized researchers. Because of the major impact of operations research methods in the field of air transportation over the past forty years, it is befitting to open the book with a chapter on airline operations management. This book will prove useful to researchers, students, and practitioners in transportation and will stimulate further research in this rich and fascinating area. - Volume 14 examines transport and its relationship with operations and management science - 11 chapters cover the most recent research developments in transportation - Focuses on main transportation modes-air travel, automobile, public transit, maritime transport, and more