Download or read book The Gravity Model in Transportation Analysis written by Sven Erlander and published by VSP. This book was released on 1990-12 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analisi: TRASPORTI. In generale. ECONOMETRIA. Econometria applicata.
Download or read book A Sensitivity Analysis of the Gravity Model written by Nancy L. Nihan and published by . This book was released on 1967 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity Models of Spatial Interaction Behavior written by Ashish Sen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gravity models describe, and hence help predict, spatial flows of commuters, air-travelers, migrants, commodities and even messages. They are one of the oldest and most widely used of all social science models. This book presents an up-to-date, consistent and unified approach to the theory, methods and application of the gravity model - which spans from the axiomatic foundations of such models all the way to practical hints for their use. "I have found no better general method for use in applied research dealing with spatial interaction... It is against this background that the present book by Sen and Smith is most welcomed." Walter Isard
Download or read book Optimal Spatial Interaction and the Gravity Model written by F. Svenaeus and published by Springer. This book was released on 2014-03-12 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has grown out of a desire to explore the possibilities of using optimizing models in transportation planning. This approach has been followed throughout. Models which combine descriptive and optimizing elements are not treated. The gravity model is here studied as the solution to an optimizing model. In spite of this approach, much of the material shoula be of general interest. Algorithms are not discussed. The author has benefited from discussions with many colleagues. M. Florian suggested the term "interacti vi ty". N. F. Stewart and P. Smeds gave many valu able comments on a first draft. M. Beckmann made me think once more about the final chapters. R. Grubbstrem and K. Jornsten helped clarifYing some things in the same chapters. Remaining insufficiencies are due to the author. Gun Mannervik typed with great patience. Linkoping in October 1979 Sven Erlander ABSTRACT The book proposes extended use of optimizing models in transportation plann ing. An entropy constrained linear program for the trip distribution problem is formulated and shown to have the ordinarJ doubly constrained gravity model as its solution. Entropy is here used as a measure of interactivity, which is constrained to be at a prescribed level. In this way the variation present in the reference trip matrix is preserved. (The properties of entropy as a dispersion measure are shortly discussed. ) The detailed mathematics of the optimal solutions as well as of sensitivity and duality are given.
Download or read book Calibrating Testing a Gravity Model for Any Size Urban Area written by United States. Bureau of Public Roads and published by . This book was released on 1965 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Gravity Model in Transportation Planning Derived as an Approximate Aggregate Utility Model written by Sven Erlander and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity and Spatial Interaction Models written by Kingsley E. Heynes and published by . This book was released on 1984 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Haynes and Fotheringham provide a comprehensive introduction to the four basic forms of gravity models. Gravity and spatial interaction -- extensively applied in forecasting -- has provided a major contribution to social science literature. The authors trace the different applications of the gravity model to market area analysis including: determining the boundaries of market areas, determining the demand for goods or services, and examining problems of operating the retail model. Six fully-developed, real-life examples of the use of these models are presented: planning a new service, defining retail shopping boundaries, forecasting migration and voting patterns, examining university enrollment by area, determining the optimal size of a shopping complex, and locating a facility to maximize custom. The discussion is kept at an elementary mathematical level and is aimed primarily at those unacquainted with the finer workings of gravity and spatial interaction models.
Download or read book Theoretical Aspects of the Gravity Model of Transport Planning written by A. Scott MacLean and published by . This book was released on 1974 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Geography of Transport Systems written by Jean-Paul Rodrigue and published by Routledge. This book was released on 2013-07-18 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Reflecting Economic Activity in Traffic Volume Estimation written by Changgi Lee and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gravity model is widely used to estimate the movement of people and goods. We use the gravity model to explain the characteristics of the movement of Korean people between and within cities via various modes of transportation using data from 246 county/district-level municipalities. We use a PPML gravity model to run regression analyses of traffic at three spatial levels: the national level (all of Korea), metropolitan level (in the Seoul and Busan Metropolitan Transportation Areas (MTAs)), and city-level (in Seoul and Busan). For these geographical areas, we use two variables to represent gravitational mass in the model - regional population and regional GDP per capita (RGDPPC). Introducing regional GDP per capita improves the model fit over all the spatial ranges, but the greatest improvement is at the city level. While the exponent parameter for distance diminishes as spatial ranges decrease, the parameters for population and RGDPPC and their relative ratio remain fairly constant. More traffic is associated with both higher population and higher levels of economic activity, represented by RGDPPC. These parameters can be understood in the model as corresponding to the number of particles and specific density of masses in Newton's gravity law. Based on this result, we suggest the concept of economic activity-adjusted population.
Download or read book Modelling Freight Transport written by Lorant Tavasszy and published by Elsevier. This book was released on 2013-10-11 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freight Transport Modelling is a unique new reference book that provides insight into the state-of-the-art of freight modelling. Focusing on models used to support public transport policy analysis, Freight Transport Modelling systematically introduces the latest freight transport modelling approaches and describes the main methods and techniques used to arrive at operational models. As freight transport has grown exponentially in recent decades, policymakers now need to include freight flows in quantitative evaluations of transport systems. Whereas early freight modelling practice was inspired by passenger transport models, by now it has developed its separate stream of methods and techniques inspired by disciplines such as economic geography and supply chain management. Besides summarizing the latest achievements in fundamental research, this book describes the state of practice and advises practitioners on how to cope with typical challenges such as limitations in data availability. - Uniquely focused book exploring the key issues and logistics of freight transport modelling - Highlights the latest approaches and describes the main methods and techniques used to arrive at operational models - Summarizes fundamental research into freight transport modeling, as well as current practices and advice for practitioners facing day-to-day challenges
Download or read book Biproportional Matrices and Input Output Change written by Michael Bacharach and published by CUP Archive. This book was released on 1970-05-02 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study of mathematical analysis and statistical methods of estimating input output changes over time. Bibliography pp. 167 to 170.
Download or read book Proceedings of AICCE 19 written by Fadzli Mohamed Nazri and published by Springer Nature. This book was released on 2019-11-28 with total page 1635 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the latest research, innovations, and applications in the field of civil engineering, as presented by leading national and international academics, researchers, engineers, and postgraduate students at the AWAM International Conference on Civil Engineering 2019 (AICCE’19), held in Penang, Malaysia on August 21-22, 2019. The book covers highly diverse topics in the main fields of civil engineering, including structural and earthquake engineering, environmental engineering, geotechnical engineering, highway and transportation engineering, water resources engineering, and geomatic and construction management. In line with the conference theme, “Transforming the Nation for a Sustainable Tomorrow”, which relates to the United Nations’ 17 Global Goals for Sustainable Development, it highlights important elements in the planning and development stages to establish design standards beneficial to the environment and its surroundings. The contributions introduce numerous exciting ideas that spur novel research directions and foster multidisciplinary collaborations between various specialists in the field of civil engineering.
Download or read book Regional Trading Blocs in the World Economic System written by Jeffrey A. Frankel and published by Peterson Institute. This book was released on 1997 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers trends from 1957 to 1995.
Download or read book The Gravity Model and Quality of Transportation Connections written by Ann Foster Devlin and published by . This book was released on 1975 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of the Gravity Model Trip Distribution written by Gary Don Long and published by . This book was released on 1968 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravity and Spatial Interaction Models written by Kingsley E. Haynes and published by SAGE Publications, Incorporated. This book was released on 1984-07 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Haynes and Fotheringham provide an introduction to gravity and spatial interaction models which are extensively applied in forecasting. They trace the different applications of the gravity model to market area analysis, developing real-life examples of the use of these models: planning a new service, defining retail shopping boundaries, forecasting migration and voting patterns, examining university enrollment by area, determining the optimal size of a shopping complex, and locating a facility for best results.
