Validate Footprints - Validate Freetown Building Footprints - Sierra Leone (17) Humanitarian OpenStreetMap Team
Validate Footprints
Finished
Sierra Leone
Humanitarian OpenStreetMap Team
May 17, 2026
Project overview
This project is about validating footprints prediction generated using AI via [fAIr ](https://fair.hotosm.org/) in Freetown, Sierra Leone. The goal is to improve the accuracy of building footprints. Review each building footprint and verify it matches the satellite imagery. Mark as correct if the outline accurately traces the building structure.
1
km2
0
Contributors
Project Completion
0% completed
Download the data
Below you'll find the data downloads for this MapSwipe project, including a GeoJSON file that can be imported into the HOT Tasking Manager for more detailed mapping of the area. If you need more information or if you have a special request related to MapSwipe data get in contact with the team at the Heidelberg Institute for Geoinformation Technology
Area of Interest
This dataset contains information on the project region.
GEOJSON
0.3 kB
Our license
This project is part of the OpenStreetMap community. The goal is high-quality geographical data, freely accessible and available to everyone. OSM’s reciprocal license protects the data from being appropriated by services that do not share back to OSM.
MapSwipe is released under a "liberal" non-reciprocal license (Creative Commons Attribution). Whenever you want to use the data, just make sure to credit the MapSwipe contributors.
