Authors : S. Balogun; T. C. Ogwueleka; Y. D. Adamu; H. Jakada

Volume/Issue : Volume 10 - 2025, Issue 11 - November

Google Scholar : https://tinyurl.com/4z5rav99

Scribd : https://tinyurl.com/yv5rb74h

DOI : https://doi.org/10.38124/ijisrt/25nov1287

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Abstract : The study investigated the use of Analytical Hierarchy Process (AHP) and Geographic Information System (GIS) analysis techniques for making public- based flood risk map of Abuja Municipal Area Council. The flood risk vulnerability mapping follows the integration of some flood causative factors such as rainfall distribution, elevation, slope, drainage density, land-use/ land-cover and soil type. The study result showed the percentage impact of the flood causative factors on the study area to be 4.06% for soil type, 26.62% for land use/ land cover, 30.96% for slope, 4.86% for Elevation, 23.03% for drainage pattern, and 10.47% for mean annual rainfall. The result equally showed a Consistency Ratio of 0.012, which showed an acceptable level and hence proves the validity of the proposed methodology. Additionally, the results were validated and confirmed to agree with historical records of flood distribution in the study area. Flood-prone areas of AMAC; Kubwa, Mpape, Wuse Market, Galadimawa roundabout, Gaduwa housing estate, Lokogoma, Light gold housing estate phase 5, and Trade More estate, Airport Road, were superimposed on the developed flood risk map and found to fall under the category of high to very high flood risk areas. This demonstrated the reliability of the considered method. This study is significant in providing procedures and plans through which the government and other relevant agencies will decrease and/or prevent the destructive effects of flood risk and socioeconomic vulnerability in AMAC.

Keywords : AHP; GIS; AMAC; Flood Risk Map.

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