Gis Based Spatiotemporal Analysis Of Urban Sprawl And Its Impacts: The Case Of Legetafo Legedadi Town, Oromia Special Zone, Central Ethiopia

Abstract

This study analyzed the spatial and temporal pattern of urban sprawl and its impact on Legetafo Legedadi town of special zone of oromia using geographic information system and remote sensing data spanning from 1996 to 2016. To this end, the research has identified urban sprawl and its pattern based on time series data and its indicators analyze major impact and produce urban sprawl map. In order to achieve these objectives, qualitative and quantitative research approaches were used. Furthermore, to generate qualitative and quantitative data primary and secondary sources were employed. Interview, questionnaires, and focus group discussions were used as primary sources whereas journal, reports and other relevant documents were used as secondary sources. Both probability and non-probability sampling techniques were employed to select 264 sample households. Maximum likelihood supervised classification of satellite imageries using ERDAS IMAGINE and Arc GIS applied for Image classification. The finding of the study shows that urban/built up land has expanded horizontally by 48.3 and agricultural land loss 42.95% over the study period. Loss of agricultural land, loss of livelihoods and displacement of farming households were major impacts of urban sprawl on study area. Increase in the number of population and land use land cover change as an indicator of the problem in the town. Therefore it is recommended that Lege tafo Legedadi town administration consider vertical development of the town, creating good governance to apply rule and law effectively and properly.