This looks like the area of Project 17249 and is not in Africa. Applying the propper tags makes it possible to track project contributions and you're more likely to recieve feedback. --- Most of the footprints you added represent buildings visible in imagery but you have not mapped them as accurately as the imagery allows. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide. I flagged footprints which either envelope zero or multiple buildings. Please keep this feedback in mind when contributing in future. Thank you for your contribution.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/169443129

Most of these footpritns represent buildings in the imagery but are generally inaccuarate and share nodes with highways. Please do not snap the corners of the buildings to other buildings or features such as roads and paths. In the iD Editor, hold down the `Alt` key to keep nodes from snapping to other objects and accidentally connecting. This [video about connected nodes](https://youtu.be/ltn1VOiq5_0) has more information and a guide. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/166861772

All but one footprint here are valid and appropriately squared, but oversized. When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint. Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag. Take care to make contributions that others can build upon.Please keep this feedback in mind when contributing in future. Thank you for your contribution.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164047991

The northern footprint represents a building in the imagery the southern one does not; I deleted it.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/166857535

Generally you identified buildings in imager but the footprints are inaccurate. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164094227

A valid footprint but it should have been squared. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide.
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Published using OSMCha: https://osmcha.org/changesets/168402600

These are fairly well mapped footpritns but the two I flagged are out of position you can move selected features in ID by pressing m.
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Published using OSMCha: https://osmcha.org/changesets/166860102

Hi almost all the footprints you mapped here represent buildings in the imagery. One in the south does not. You also added overlapping footprints due to the fact that the footprints you mapped are generally slightly oversized. When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint. Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag. Take care to make contributions that others can build upon.
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Published using OSMCha: https://osmcha.org/changesets/166859015

Hi the fooprints you added here do not represent buildings in the imagery; I deleted them. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide.
Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
---
#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/166858676

valid trimming of a highway which overlapped with buildings in the imagery.
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Published using OSMCha: https://osmcha.org/changesets/164180565

Most of these footprints represent buildings, some are fairly well mapped but could be slightly smaller. When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint. Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag. Take care to make contributions that others can build upon. See how I mapped some here https://osmcha.org/changesets/169481125
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Published using OSMCha: https://osmcha.org/changesets/164180445

Building footpritns whould represent one building. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide.
Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
---
#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164094959

Hi, thank you for your contribution. Generally you identified buildings in the imagery and appropriately squared them. Generally they appear oversized. When mapping buildings, please trace the shape accurately. Accurate building footpritns aid population estimates and prevent issues like data overlaps. Zoom in so that you can see the outline of the building and mark the corners carefully. Exclude shadows and yards when tracing the footprint. Keep in mind that you are looking at the roofs of buildings, but mapping their footprints. Depending on how the scene is lit, pitched roofs may have light and dark sections that belong to one building. Generally pitched roofs overhang the walls of a building, so a footprint slightly smaller than the roof is accurate. You can scale selected features in ID with shift+(-/+), or JOSM with ctrl.+alt+Lclick & drag. Take care to make contributions that others can build upon.
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Published using OSMCha: https://osmcha.org/changesets/166859832

Hi, thank you for your contributions. The footpritns you added here represent those visible in imagery but are not as accurate as they could be. After mapping buildings, please remember to square their corners. Most buildings have square corners because that's easy to build. Unless the building is clearly a different shape then it's best to assume that the corners should be squared. In the iD Editor, use the `Q` key to square the corners. This [video about squaring features](https://youtu.be/Xs5wX592E1o) has more information and a guide. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/166859694

Hi you identified square buildings in the imagery. Thet could be more accurate because they are generally oversized, have not been squared, and share nodes. Accurate footprints are important for population estimates and to prevent issues like data overlaps. See how I mapped some of these here https://osmcha.org/changesets/169477049 Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164094658

Hi, the building you mapped here represents one in the imagery and is appropriately squared. It is however slightly overzised. Accurate footprints aid population estimates and prevent issues like data overlaps.
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Published using OSMCha: https://osmcha.org/changesets/168402859

See how I mapped these buildings in https://osmcha.org/changesets/169429891
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Published using OSMCha: https://osmcha.org/changesets/169172046

Resolution https://osmcha.org/changesets/169429366
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/169171983

All footpritns valid, though generally the footprints you map are slightly oversized. The two I flagged are the most obvious ones. A building's footprint is generally still considered accurate if it's slightly smaller than a pitched roof becasue it likely overhangs the walls somewhat. This helps avoid data overlaps and other issues in feature dense areas. Watch this video for an example of how to edit existing data in JOSM https://youtu.be/BDGP_-Dlepo?feature=shared. I hope you find it useful.
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Published using OSMCha: https://osmcha.org/changesets/169172046

Hi, all footprints you mapped here represent buildings and are appropritaely squared. The footprint I flagged is oversized becasue it includes a yard to its south. Please keep this feedback in mind when contributing in future. Thank you for your contribution. If you want to experience the OSM community or to get timely feedback from other mappers; I recommend that you attend a mapathon. You can find events here https://osmcal.org/
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/169171983