Disaster Mapping in Ggaba
In Uganda’s capital, increasing urban populations and changing land-use patterns are creating new challenges for mapping risk in Kampala. The World Bank is currently supporting the Government of Uganda (GoU) through several mechanisms to increase resilience in Kampala and other urban areas by improving infrastructure and developing capacity. A common goal of these programs is to improve access to baseline data and risk-related information to quicken decision making processes. Baseline geographical data can be used for disaster risk reducing policy and interventions and for efficient disaster response.
By creating up-to-date and detailed maps, it will be possible to compile detailed, high resolution Risk Profiles for areas and households affected, and assist communities to understand their environment for improved decision making and increased resilience.
From interviews with KCCA and ground visits led by HOT and OpenStreetMap Uganda, it was determined that a significant amount of change in terms of land use and development have occurred in Ggaba Parish. Ggaba Parish was chosen as a potential use-case for improving baseline OpenStreetMap (OSM) information through geospatial data collection. This data could then be used by KCCA and other partners for DRR assessments, surveys, and analysis.
Open source tools were used through the process of remote mapping to prepare datasets of Ggaba parish that will be used to conduct field mapping in selected villages.
Field mapping was carried using open source mobile data collection tools i.e. Open Data Kit, OpenMapKit and OSM And for covering tracks. Entities to be mapped were buildings, points of interest, drainage systems.
Area of interest analysis
Population density for each village in Ggaba.
High quality data was consolidated by use of high quality drone imagery taken by GeoGecko, one of the partners for the project. The image can be found Here on Open Aerial Map
All data collected was uploaded to OpenStreetMap.