The Impact of Rapid Urbanization and Public Housing Development on Urban Form and Density in Addis Ababa, Ethiopia (original) (raw)
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2021
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 w...
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Habitat International, 2021
Ethiopia has experienced rapid urbanization over the past three decades. Several cities expanded rapidly and many satellite towns sprung up around the major cities. The high rate of urbanization and urban growth resulted in high demand for urban land, mainly for industrial, commercial, and residential purposes. In order to meet the demand, an enormous amount of land has been made available for urban use, mainly through land conversion. However, we know very little about how efficiently cities use urban land. This paper investigated the urban land use efficiency (ULUE) of sixteen cities in Ethiopia. Remote sensing data (Landsat 7/8) was analysed with ArcGIS to assess spatiotemporal land use changes between 2007 and 2019. Built-up environment footprints were computed from Google Earth imagery. The ratio of land consumption to population growth rate, and the rate of urban infill were assessed. The findings revealed a prevalence of urban land use inefficiencies in all cities. In most cities, the rate of land consumption far exceeds the population growth rate. Densification (urban infill) is low and slow. A considerable part of the converted agricultural land sits idle within the built-up area for many years. Low ULUE is what fuels urban sprawl, fragmentation and informal settlements. This study emphasised the need to implement urban policies and practices aimed at improving ULUE. Improving ULUE is imperative to achieve the Sustainable Development Goals; ensuring sustainable urban land use; addressing land prices and housing shortages; protecting farmland and ecosystems; tackling land hoarding, urban sprawl and informal settlements.
International Journal of Remote Sensing, 2017
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The Ethiopia Urban Land Supply and Affordable Housing Study (EULSAH) responds to the request fromthe Government of Ethiopia (GoE), Ministry of Urban Development and Construction to carry outfollow-on technical assistance to the Ethiopia Urbanization Review (EUR) jointly published by theWorld Bank and the GoE in 2015. The EUR calls for a robust institutional framework to support efficient and sustainable land management and housing delivery, urban governance, and municipal finance, taking into account Ethiopia’s constitutionally entrenched system of land tenure.EULSAH aims to inform policy decisions on how to address the growing demand for urban land andaffordable housing in the context of rapid urbanization in Ethiopia. It supports two interrelatedcomponents, Urban Land and Housing. The Urban Land component has two subcomponents. The first subcomponent “Urban Land Cadaster” was successfully delivered to the GoE in May 2017. The second subcomponent “Urban Land Supply” along with the ...
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Mapping and quantifying urban landscape dynamics and the underlying driving factors are crucial for devising appropriate policies, especially in cities of developing countries where the change is rapid. This study analyzed three decades (1984-2014) of land use land cover change of Addis Ababa using Landsat imagery and examined the underlying factors and their temporal dynamics through expert interview using Analytic Hierarchy Process (AHP). Classification results revealed that urban area increased by 50%, while agricultural land and forest decreased by 34 and 16%, respectively. The driving factors operated differently during the pre and post-1991 period. The year 1991 was chosen because it marked government change in the country resulting in policy change. Policy had the highest influence during the pre-1991 period. Land use change in this period was associated with the housing sector as policies and institutional setups were permissive to this sector. Population growth and in-migra...
Spatiotemporal analysis of urban expansion using GIS and remote sensing in Jigjiga town of Ethiopia
Applied Geomatics, 2018
Urban expansion necessitates proper planning to avoid profound negative environmental and socioeconomic impacts. The main objective of the study was to analyze the spatiotemporal changes that occurred in Jigjiga town in the last three decades. To meet the intended objectives, geographic information system (GIS) and remote sensing technologies were employed. The results of the study disclosed that urban expansion of Jigjiga town was largely caused by the increasing built-up area from 4.2% in 1985, 5.2% in 2005 to 24% in 2015 out of Jigjiga's township area of 7492 ha due mainly to natural increase of the population, urban ward migration, and most recently, a change in status of the town from zonal capital to regional capital. This uncontrolled expansion towards peri-urban neighborhoods has exerted pressure on cropland and vegetation. Cropland has declined from 3836.6 ha (51.6% of Jigjiga's township area of 7492 ha) in 1985 to 2486.0 ha (33.2%) in 2015. Areas covered by forest increased by 84.8 ha in the first decade (1985-1995) and by 218 ha in the second decade (1995-2005), but towards the last decade (2005-2015), about 231 ha of forestland was converted to built-up area. The decline of grassland especially in the southern part of the town and its surrounding rural area was also very significant. In the last three decades, about 463 ha of grassland was converted largely to built-up areas. Therefore, controlling and monitoring of urban expansion using GIS and remote sensing technologies are vital solutions to protect peri-urban neighborhoods from adverse effects of urbanization. Keywords Remote sensing. GIS. Spatiotemporal analysis of urban expansion. Jigjiga town. Ethiopia
UTTAR PRADESH JOURNAL OF ZOOLOGY, 2022
Urban expansion is widespread in most developing countries while the nearby farmland area coverage is shrinking which in turn attracting the attention of many actors to manage the encroachment scientifically. This study aims to analyze the urban land use and land cover change in Hossana town using geospatial techniques. Three Landsat images were used and analyzed using ArcMap 10.5. The images were classified and reclassified into six land use classes. The result showed visible land cover change and a high rate of town expansion in the study area. The forest area surrounding the town and bareland decreased from 5702 (48.8 %) to 1515 ha (12.97 %) and from 2224.3 ha (19.1%) to 226.2 ha (1.94 %) from 1986 to 2019 whereas farmland and built-up areas increased rapidly from 3078 ha (26.4%) to 5599.5 ha (47.95%) and from 141.1 (1.2%) to 3581.4 ha (30.67%) in the study period, respectively. Thus, the land cover change result for the built-up area has eventually expanded through the study period. In contrary, the land cover under forest, water, bareland, open area (greenery) and farmland have shown tremendous decrease within the last three decades, respectively. The expansion of farmland and settlement areas implies high population inflow to the urban area from the rural and fringe areas.