Gwantwa Andrew, Junior Supervisor at Humanitarian OpenStreetMap Team (HOT) local partner, Open Map Development Tanzania (OMDTZ)

I joined HOT as a volunteer mapper in March 2015. I was one of the first few students selected from Ardhi University to work with this organisation, when it started operating in Tanzania. My first professional engagement with HOT was in a project called Community Mapping for Flood Resilience in Dar es Salaam city. My responsibilities in this project revolved around collection of spatial data on housing and related infrastructures in twenty six wards in the city. Later on in this project, i played training and supervisory role on new students who joined the project. At the end of this project, we produced maps showing all flood prone areas in the surveyed wards. The maps were meant to be used as important tool for flood prevention and management at community level.

I also worked in a project on Malaria Elimination in Zimbabwe. My tasks in this project was to map all buildings targeted for malaria prevention intervention. Mapping in this project was done remotely using open source software namely JOSM and id Editor. This project was successfully accomplished in 2017 and it was handed over to the government of Zimbabwe for other actions.

My third major project that i participated at HOT was a Mini Grids project Tanzania. The purpose was to identify all buildings not connected to the power supply through the main national grid in order to plan for them to access power from solar and other renewable Mini Grid electrification. I successfully supervised a team of 78 mappers and the work was accomplished within 5 months on July 2018.

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