Sub-Saharan Africa is the world's poorest and least urbanized continental district. It does now have quite a few metropolitan areas with over three million populace and troubles similar in amount to those in big cities somewhere else in the third world. Most capital metropolises and major industrial centers in Sub-Saharan Africa have inhabitants of no more than two million people; in the negligible cities they reside barely 100,000 to 150,000. In intercontinental circumstances, these would grade as merely unassuming intermediate or secondary metropolises.So far, the bulk of urban Africans still reside in cities, towns and villages of this size or smaller.However, it is misleading to focus completely on total urban dimension. Far more significant, in terms of the capability to absorb, house and provide work for inhabitants is the rate of urban development. In this respect, Sub-Saharan Africa has for a short period now directed the world, with rates of 5% to 6% every year. A lot of primate centers and a range of secondary metropolises have experienced steady growth of 9.11% annually, which means that their inhabitants duals in less than a few years. These rates are two to three times elevated than the applicable national population escalation rates, which average 3% to 4% per annum and are themselves amongst the uppermost in the world. Although obviously increasing, the levels of urbanization in the Sub-Saharan states continue to stay among the lowest in the world. International evaluations are impeded by the extensively conflicting definitions of urban areas adopted by national statistical offices, as well as great variation in the coverage, accuracy, and base years of national censuses. (Jennifer Keiser, Jurg Utzinger, Marcia Caldas De Castro, Thomas A. Smith, Marcel Tanner & Burton H. Singer, 2004).
According to various economists, sub-Saharan African urban inhabitants are slightly more affluent than their rural counterparts. Health metrics are higher for urban inhabitants and towns put forward more education and employment prospects for women. Despite that, the greater part of urban inhabitants in sub-Saharan Africa resides under slum surroundings, devoid of durable accommodation or legal privileges to their property. In any case, one-quarter of African city inhabitants do not have right to use the electricity. A 2000 World Health Organization statement projected that only 43% of urban inhabitants had access to water through pipelines. Waste disposal presents a remarkable health danger in many urban districts, such as in Kibera, Nairobi's major slum, plastic bags are worn as flying toilets. Internal air pollution, poor nourishment and urban offense all facades fear to urban inhabitants. The hasty urbanization process in sub-Saharan Africa and the declining economic performance of nearly all African countries have shaped a new facade of poverty distinguished by an essential percentage of the population existing under the poverty contour in over jam-packed slums and sprawling shanty towns around the main cities. Estimation by UN-Habitat demonstrates that around 70% of all urban inhabitants in sub-Saharan Africa reside in slums. The experiences of the urban unfortunate are distinctive and often distinguished by dependence on cash economy, congestion and poor environmental sanitation, lack of safety, lack of communal and health services, superior indulgence in dangerous sexual practices, social disintegration and high levels of immigration. (Jean Basco). Urban population development in sub-Saharan Africa is primarily motivated by rural-urban migration of young adults looking for jobs and other employment chances in urban regions. For example, the amount of Nairobi city-born inhabitants is no more than 20% up to the age of 35 and less than 10% after age 50, and that half of the Nairobi inhabitants came to the town amid 17 and 23 years old. Certainly, in spite of the fall in employment chance linked with the economic slump in Kenya