James E. Vance propounded the model of transport development based on the historical propagation of mercantilism in his book The Merchant’s World: The Geography of Wholesaling (1970). Vance model of transport originated as a reaction to Christaller’s Central Place Theory which aims to explain pattern of settlements and transport in a universally stagnant manner. This … Read more
Ideal-Typical Sequence Model of Transport Development is an abstract explanation of sequence of various stages of development of transport network in underdeveloped countries. This model of transport development was given by Edward J. Taaffe, Richard L. Morril and Peter R. Gould in 1963 in their paper titled Transport Development in Underdeveloped Countries: A Comparative Analysis. … Read more
In common parlance, transport is defined as the movement of tangible goods and people from one place to another. However, there are various aspects of transportations such as time, space, cost, effort, reach, velocity etc. Since, the concept of space and place is closely connected to transportation, it becomes a subject matter of geographical analysis. … Read more
Alfred Weber, a pioneer of locational analysis in Geography, introduced the Theory of Industrial Location in 1909. Weber combined economic parameters with spatial parameters to arrive at a profitable location for industries. It is also known as Least Cost Theory because this theory tries to find a location of least cost for an industrial location. … Read more
Alfred Weber is considered one of the pioneers of locational analysis in Geography. He gave his theory of industrial location in 1909. Weber’s theory of industrial location is a beautiful example of combining economic parameters with spatial parameters to arrive at a profitable location for industries. It is also known as Least Cost Theory because … Read more
In the 1950s, Geographers and Demographers were increasingly attracted to methods of positivist sciences such as physics and mathematics. Therefore, they used different theories and models of these sciences in their own field to gain validation from the scientific community. This paradigm in social sciences is known as quantitative revolution. The Gravity Model of Migration … Read more
Samuel A. Stouffer gave the theory of intervening opportunities in his work “Intervening Opportunities: A Theory Relating Mobility and Distance” in 1940. This theory shows that the nature of geographic space is more important than the distance in determining migration behavior. According to Ravenstein’s Laws, distance is the most important factor in determining the migration … Read more
Everett S. Lee’s Theory of Migration (1966) or Intervening Obstacles Model aimed to eliminate the shortcomings of the previous theories of migration by inculcating both opportunities and problems as factors of migration. Previously, most of the studies focused on making general unidimensional laws to explain migration e.g. Ravenstein’s Laws of Migration. However, none of these … Read more
Ernest George Ravenstein’s Laws of Migration are based on the data in Census of Great Britain. He was the pioneer demographer who provided the theoretical framework for understanding the spatial movement of migrants. He was a fellow at Royal Geographic Society and presented his paper in 1885 at Statistical Society of England. All other theories … Read more
John Friedman was an urban theorist and founding figure of the Department of Urban Planning at the UCLA Luskin School of Public Affairs. He propounded the core-periphery model of regional development in the year 1966. The Core-Periphery Model by Friedman shows the process of economic growth and urban development in time and space. Basic Idea … Read more