scholarly journals Spatial Analysis of Intra-Urban Land Use Dynamics in Sub-Saharan Africa: The Case of Addis Ababa (Ethiopia)

Urban Science ◽  
2021 ◽  
Vol 5 (3) ◽  
pp. 57
Author(s):  
Amanuel Weldegebriel ◽  
Engdawork Assefa ◽  
Katarzyna Janusz ◽  
Meron Tekalign ◽  
Anton Van Rompaey
Keyword(s):  
Land Use ◽  
Addis Ababa ◽  
Urban Land ◽  
Urban Land Use ◽  
Sub Saharan Africa ◽  
Land Use Dynamics ◽  
Sub Saharan ◽  
The City

Currently, circa 30% of the population in sub-Saharan Africa resides in cities, and this figure is expected to double in 2040. The recent literature describes the urban expansion processes of African cities in much detail. However, the urbanization wave in Africa also leads to important intra-urban land use dynamics, which have important consequences on the quality of life within existing cities, which has received less attention. This study aims to contribute to these information gaps by (1) analyzing the extent of the urban land use conversion in contrasting urban locations using satellite images for physical criteria-based classifications and (2) assessing the potential consequences of these intra-urban conversions on the quality of life. Intra-urban land use changes were documented based on satellite imagery for the period 2002–2020. Based on some representative attributes, Addis Ababa city was selected for the case study. Urban land use dynamics and population density changes were examined based on the selected case study neighborhoods and randomly identified land parcels in the city, respectively. Urban development strategies and programs that emerged over recent decades had caused intra-urban land use dynamics, which brought significant population density changes. Moreover, these changes have caused an unbalanced distribution of socio-economic amenities across the city.

scholarly journals A New Hypothesis on Informal Land Supply, Livelihood, and Urban Form in Sub-Saharan African Cities

Land ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 435
Author(s):  
Johan Mottelson
Keyword(s):  
Land Use ◽  
Urban Development ◽  
East Africa ◽  
Urban Form ◽  
Informal Settlements ◽  
Urban Land ◽  
Urban Land Use ◽  
Sub Saharan Africa ◽  
Land Supply ◽  
Sub Saharan

In sub-Saharan Africa, the urban majorities are financially excluded from the formal housing markets and reside in informal settlements. Limited knowledge on the development of informal settlements compromises the efficacy of urban planning and policies targeting such areas. This study presents an analysis of informal urban land use in four major cities in East Africa, as well as an analysis of urban form and household conditions in a case study area in each city. The study found more compact urban form, higher levels of tenants and overcrowding, and lower levels of access to water and sanitation in the examined cities with limited informal urban land use. The study argues that government repression of informal urban development decreases informal land supply and leads to increased competition in the informal land market, causing higher costs of accommodation and consequent fewer household resources for investments in infrastructure and thereby more compromised livelihood. The study argues that governments should accept some modes of informal development, simplify the urban development administration processes, and use technological innovation in land surveys and management, in order to lower costs of accommodation and improve livelihoods for the urban majority financially excluded from the formal housing market in East Africa.

Using neural networks and cellular automata for modelling intra‐urban land‐use dynamics

2008 ◽  
Vol 22 (9) ◽  
pp. 943-963 ◽  
Author(s):  
C. M. Almeida ◽  
J. M. Gleriani ◽  
E. F. Castejon ◽  
B. S. Soares‐Filho
Keyword(s):  
Neural Networks ◽  
Land Use ◽  
Cellular Automata ◽  
Urban Land ◽  
Urban Land Use ◽  
Land Use Dynamics

scholarly journals Study on Temporal and Spatial Variation Characteristics and Influencing Factors of Land Use Efficiency in Xi’an, China

2019 ◽  
Vol 11 (23) ◽  
pp. 6649
Author(s):  
Jing Huang ◽  
Dongqian Xue
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Influencing Factors ◽  
Urban Land ◽  
Urban Land Use ◽  
Western China ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Underdeveloped Areas ◽  
The City

China’s urban land use has shifted from incremental expansion to inventory eradication. The traditional extensive management mode is difficult to maintain, and the fundamental solution is to improve land use efficiency. Xi’an, the largest central city in Western China, was selected as the research area. The super-efficiency data envelopment analysis (DEA) model and Malmquist index method were used to measure the land use efficiency of each district and county in the city from the micro perspective, and the spatial-temporal change characteristics and main influencing factors of land use efficiency were analyzed, which not only made up for the research content of urban land use efficiency in China’s underdeveloped areas, but also pointed out the emphasis and direction for the improvement of urban land use efficiency. The results showed that: (1) The land use efficiency of Xi’an reflected the land use intensive level of the underdeveloped areas in Western China, that is, the overall intensive level was not high, the gap between the urban internal land use efficiency was large, the land use efficiency of the old urban area and the mature built-up area was relatively high, and the land use efficiency of the emerging expansion area and the edge area was relatively low. (2) Like the eastern economically developed areas, the land use efficiency of western economically underdeveloped areas was generally on the rise, while Xi’an showed the U-shaped upward evolution characteristics, and there were four types of changes in the city, that is, highly intensive, medium intensive, high–medium–low-intensive, and intensive–extensive. (3) Various cities should configure resources and optimize mechanism to improve their land use efficiency based on economic and social development. During the study period, Xi’an showed the law of evolution from the south edge area and the emerging expansion area to the main urban area. (4) The improvement of technological progress was the main contribution factor of the land use efficiency in underdeveloped areas of China, and the low-scale efficiency was the main influence factor that caused low land use efficiency. In future urban land use, efforts should be made to optimize and upgrade technology and strictly control the extensive use of land.

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