World rate of Urbanization and future projection

-
The rate of growth of the world urban population is slowing down. Between 1950 and 2011, the world urban population grew at an average rate of 2.6 per cent per year and increased nearly five-fold over the period, passing from 0.75 billion to 3.6 billion. During 2011-2030, the world urban population is projected to grow at an average annual rate of 1.7 per cent, which, if maintained, would lead to a doubling of the urban population in 41 years. During 2030-2050, the urban growth rate is expected to decline further to 1.1 per cent per year, implying a doubling time of 63 years.

Figure : World rate of Urbanization and future projection

Source:  United Nations- World Urbanization Prospects: The 2011 Revision

From the Map below it has been observed that during 1950-55, the urban growth rate was higher in those parts of the world which we call now MDCs. During 2000-2005 we have found the rate of urbanization became more or less stagnant in the developed countries even in some areas urban growth fell below zero. So it could be projected that in future during 2045-2050 counter urbanization will occur in many parts of the world while in some areas urbanization will continue to rise.

Map : Rate of urbanization (worldwide) in different period


Most Viewed Posts

Planetary Winds: Their Types and Definition

-
Image
Planetary winds : These winds being controlled by the pressure belts, blow towards the same direction throughout the whole year. The planetary wind is of three types such as : the trade wind, the westerlies and the polar wind. So, in short, the characteristics of planetary winds are as follows: These winds being controlled by the pressure belts blow towards the same direction throughout the whole year.  Planetary winds are also known as permanent or prevailing winds  Blow from high to low pressure, over the earth surface & oceans throughout the year & in a particular direction  These winds are divided into 3 categories viz. Trade Winds (Tropical Easterlies) Westerlies Polar winds (Polar Easterlies) https://www.affairscloud.com/assets/uploads/2016/04/wind.png 1. Trade Winds (Tropical Easterlies) The sun’s rays fall vertically over the equatorial region, so the air becomes hot and goes upwards. Since the pressure is less upward, the rising air gets r
Read more

The Vance Model of Transport Development

-
Image
Based on his work on the eastern seaboard of America, Vance (1970) developed a five-stage ‘mercantile’ model to illustrate the development of transport links and the growth of the urban hierarchy in North America (Figure 3.6). Although primarily concerned with trade, his model is important in that it stresses the impact of exogenous forces on the evolution of transport networks and their associated spatial patterns. The Vance Model of Transport Development In the initial stage, an accumulating of wealth in Europe prompted overseas expansion of an exploratory nature. Stage 2 sees the beginnings of the transatlantic trade routes based on the one-way trade in staple products such a fish, furs and timber. From 1620, permanent settlement occurs in North America; this results in Atlantic trade in both directions as settlers begin to produce commodities for export and consume manufactured products from a rapidly industrialising Europe (stage 3). Internal transport links are limited
Read more