Natural locations are imposed for certain activities such as proximity to water for work of skin, distribution of populations and activities in cities obeyed. Initially, the non-economic logics rule over lands which are primarily governed by custom, religion or political power. The Mono-centric models emerge when private ownership of land and right to order all companies that have no experience of land marketing. The buying and selling of plots leads to increase in specialized locations based on their relative profitability. In short, the existence of land markets is the structured on element of urban space that lead to a gradual separation of the workplace, residence and recreation (Paul L. Knox 2005).
The mono-centric implies that an urban region revolves around a single dominant center for it being unique and sometimes with secondary centers. This is strictly to back from the main center (B. Marrakchi, 2007).
A dominant pole space also known as mono-centric model in this case. Mono-centric development is a model instead of urban locality centralist tradition. Urbanization plays an overwhelming role in the development and an even more dominant on the national territory (2.2% of the area, the city concentrates 20% of the population and produces 40% of GDP). However, this polarization has allowed urban location of a country to be urbanized based on its structural format (Thompson 2006).
Of course, there is also the mono-centric in several sustaining countries. For example, in Morocco, Casablanca makes 48% of industrial output, 36% of exports, 51% of industrial GDP and 43% of the total industrial (B. Marrakchi, 2009, p.33). In Algeria, including Algiers contribute for 45% of foreign investment (Mr. Hadyseyd, 1996, p.65). Another example can be reflected of Dakar representing 0.3% of Senegalese territory which achieved 55% of national GDP and 80% of jobs concentrated commercial and industrial (A. Diagne, S. Kassoum, S. Sall, 2002). In the mono-centric model, the bulk of jobs are concentrated in the center.
In sum, the territory which is organized as a mono-center leads to the polarization of activities and wealth in a single spatial unit. The rest is in a situation of dependence of the center. Economic and political factors explain this situation.
Conversely, when a city has several centers with similar weight counterparts, the other byte station is polycentric space. A polycentric development means that the territory is undertaken in a balanced manner at all levels and across multiple centers with an additional competitive ...