IAS (Admin.) Mains Geography Economic Geography-Patterns of World Trade Study Material (Page 6 of 10)

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Theories of Transport & Regional Spatial Structure: Distribution or Flow Model

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Distribution or Flow Model

It considers that major gateways of urban region act as main interface between global, national, and regional systems. They work within a hierarchical structure of urban centers, where larger urban areas act as collection…

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Mathematical Models of Transportation: Spatial Interaction Models

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Models of Transportation

Introduction

With the advent of qualitative revolution, researchers tried to depict various aspects of transport networks using quantitative models. Models of transportation are used to predict and analyze effects of transportation on urbanization, on economic markets, on spatial organization etc. They can be understood in the following categories:

Spatial Interaction Models

Models based on spatial interaction include some of the earliest efforts to model systematic spatial patterns of urban land use. Principles of gravity and entropy maximization are widely used in this modeling approach. Following are some important spatial interaction models:

  • Lowry Model: It is considered the first tr…

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