In the process of upgrading informal settlements in Kigali city of Rwanda, three main slums were identified mainly Bannyahe in Gasabo District, Agatare in Nyarugenge District, and Batsinda of Gasabo, the main challenge was to identify and quantify the total size of infrastructures that need the upgrade, the proposition of new infrastructures patterns and expropriation process. This is how OSM was used to digitize the roads in the three slums which was needed to calculate the length to be upgraded, to digitize the buildings around the roads and water channels that were selected for upgrade where the buffer analysis was used to any household in 20m from the road had to be expropriated, those buildings were used to identify the households for expropriation, kobo collect app was used for ground information, QGIS to analyze the data for decision making, I would like to present this work, for other people who want to use OSM to improve the lives of their communities.
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