Institutional Level Land Use land cover green infrastructure Assessment asameant for storm water run off management:A case Study of Addis Ababa nuniversity sidist-Killo Main Campus
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Date
2025-06-01
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Addis Ababa University
Abstract
The rising population the need for living facilities, prompting the development of essential infrastructure such as roads, buildings, parking areas that increases the imperviousness of the surfaces. Increase impervious surfaces and the presence of inefficient drainage systems significantly intensify the volume of storm water runoff, leading to frequent flooding and limit the ability of stormwater to infiltrate the ground. This situation not only heightens the risk of flooding but also exacerbates water pollution. In response, Green Infrastructure (GI) has become a sustainable and effective approach for managing urban storm water by reducing runoff flow rates, retaining excess water, and enhancing groundwater recharge. The study areas have encountered problems of aging of infrastructure and inadequacy of drainage line outlet points. This thesis aims to constructively explore the spatial distribution of areas within the study areas of Addis Ababa university sidist kilo main campus and assess the potential of green infrastructure to mitigate stormwater runoff volume. Descriptive analysis method was used by leveraging both quantitative and qualitative methods, assessed the potentials of green infrastructure for stormwater runoff management. Graphs, maps, and tables were used to show the extent of development and the special arrangements. Using the rainfall data acquired from metrological agency for the maximum rainfall intensity and obtain the total runoff volume for the maximum generation of stormwater runoff with in the study areas. The green infrastructure covers approximately 49.81% of the total land use in the study area, demonstrating a significant contribution to stormwater runoff conservation and reduction. The development of infrastructure and the changes made at three different years 2012, 2017 and 2022 G.C shows the changes in land use land cover and GIS software were used for classification. The result depicts that the implementation of green infrastructure with in the study areas have positively impacted for the reduction of the volume of stormwater runoff; and has enhanced the capacity of existing stormwater drainage points, ensuring their adequacy. In conclusion, the proactive development of green infrastructure has demonstrated significant effectiveness in reducing stormwater runoff volume. This initiative not only contributes to improved drainage and flood prevention but also fosters a healthier environment, highlighting the importance of sustainable practices in urban planning.
Keywords: Green infrastructure; stormwater management, stormwater runoff, impervious surfaces, Addis Ababa University