Improving Stormwater Management Capacity Of Cobblestone Paved Local Streets Through Green Infrastructure Design And Technologies (the Case Of Resedential District In The Eastern And North Eastern Part Of Addis Ababa)

Addis Ababa is currently undergoing city wide transformation with respect to its built environmentrnand provision of basic infrastructure services. Local street construction with cobblestone pavement isrnone of the infrastructure development implemented in every part of the city. However, thernconstructed local streets in many parts of the city are deteriorating within a short time afterrnconstruction. Therefore, the main objective of the study is; to device green infrastructure design andrntechnologies for the local streets of Addis Ababa in order to reduce the impact of stormwater runoffrnand at the same time to enhance environmental quality of the city neighborhood.rnIn order to accomplish the objective, research methods were developed for each specific objective.rnCase study method is then used in the research, by selecting two areas in Addis Ababa that are foundrnin the same local watershed, based on appropriate criteria. Consequently, the existing situation ofrnlocal streets and impact of stormwater runoff in the study areas is analyzed.rnBased on the research findings, the research proposes site specific green street design andrntechnologies for the local streets of the study area. Moreover, the research tested and illustrated thernupscale effect of green infrastructure practices on watershed level using Arc GIS platform.rnKey words: Cobblestone pavement, local watershed, green Street, upscale effect

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