Please check this changeset (164093821) to see how I mapped this settlement https://osmcha.org/changesets/164106748?filters=%7B%22in_bbox%22%3A%5B%7B%22label%22%3A%225.259705%2C13.321476%2C5.262451%2C13.324149%22%2C%22value%22%3A%225.259705%2C13.321476%2C5.262451%2C13.324149%22%7D%5D%2C%22area_lt%22%3A%5B%7B%22label%22%3A2%2C%22value%22%3A2%7D%5D%2C%22date__gte%22%3A%5B%7B%22label%22%3A%222024-11-18%22%2C%22value%22%3A%222024-11-18%22%7D%5D%2C%22comment%22%3A%5B%7B%22label%22%3A%22%23hotosm-project-18084%20Mapping%20of%20buildings%20in%20Sokoto%2C%20Nigeria%20for%20%23msf%20%23missingmaps%20%23Sokoto24%22%2C%22value%22%3A%22%23hotosm-project-18084%20Mapping%20of%20buildings%20in%20Sokoto%2C%20Nigeria%20for%20%23msf%20%23missingmaps%20%23Sokoto24%22%7D%5D%7D
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164093821

All footprints are valid but not accurate. All of these footprints should have been squared by pressing q after drawing accurately enough and tagging. 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/164093631

The footprint I flagged envelopes multiple buildings. Each footprint should represent one building: use shadows and alternate imagery sources to determine where one ends and the other begins. In this area Bing is useful as an interpretation aid. 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/164092219

You glued the nodes of several buildings together: hold alt to prevent your cursor from snapping to existing data in ID editor. 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/164092165

All footprints save for the NE one are valid, though not accurate. Draw the building well accurately enough, tag it, then square (q) or round (o) it, then resize. Helpful shortcuts can be found when pressing ? in ID editor. --- The residential area overlaps footprints. I recommend modifying features you expect to overlap footprints before mapping them so that it's out of your way and less likely to cause issues. 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/164092026

Check Changeset: 164104392 to see how I would have mapped the footprints. The main points are that you used the right approach to avoid feature overlap by modifying the highway and residential area. Using an existing node like you did is a bonus. Perhaps the highway could have been moved a little less; highway 'lines' should follow the centre of the highway. The L shaped building I flagged is most likely a rectangle, though it's understandable why you mapped it that way. All footprints are valid i.e. they each represent a building visible in imagery.
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Published using OSMCha: https://osmcha.org/changesets/164047198

Most buildings valid and accurate. Some are inaccurate and should be squared (q). Highway moved to avoid overalp.
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Published using OSMCha: https://osmcha.org/changesets/164048779

Footprints valid and accurate. Highway correctly moved. 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_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164048965

These footprints are valid but not accurate. Map buildings well enough, tag them then square (q) them or make them round (o). 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/159460205

You deleted existing footprints and replaced them with new ones. I this instance I think that was a good choice becasue they were only a day old and had no prior history. The vast majority of footprints are accurate and valid. Use alternate sources to aid your interpretation. 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_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/159483945

The vast majority of building footprints you digitised are accurate and valid. I flagged some which I don not think fit that description. You could use a suplimentary source such as bing and switch back and forth with (ctrl.+b) and/or zoom in and out to aid your interpretation. You propperly resolved a highway building overlap. 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_GOOD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164049269

See my resolution in changeset: 164101915 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/164091547

By resolving the issue incorrectly you make the problem harder to spot for others. In this case the highways and buildings should have been modified to resolve the issue as per the project document. Check Changeset: 164101748 for my resolution https://osmcha.org/changesets/164101748?filters=%7B%22ids%22%3A%5B%7B%22label%22%3A%22164101748%22%2C%22value%22%3A%22164101748%22%7D%5D%7D
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164091560

the highway you deleted should have been move and not deleted. Unless a feature does not exist it is best practice to modify existing data rather than deleting it and re drawing.
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Published using OSMCha: https://osmcha.org/changesets/164091547

Some of the footprints you added here share nodes with highways: hold alt to prevent your cursor from snapping to exisitng data. You inappropriately tagged a building with a layer=1 tag (the one I flagged): generally instances of overlapping features should be resloved by modifying the geometry of features. Adding a layer tag suggests that the footprint is above the highway. It makes the warning go away but doesn't address the cause of the issue, warnings are there to grab your attention, then secide the best course of action sometimes ignoring warnings is the best thing to do. 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/164091560

The footprints to the West of this changeset are the best I've seen you digitise so far. Though their accuracy could be better and they should be squared (q), they represent individual buildings and thus are valid.
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Published using OSMCha: https://osmcha.org/changesets/164091048

The western footprint envelopes multiple buildings and shares nodes with a highway. The Eastern featue is a barrier. You can tell becasue of the shadows it casts. Please check changeset https://osmcha.org/changesets/164100764?filters=%7B%22in_bbox%22%3A%5B%7B%22label%22%3A%225.324249%2C13.094192%2C5.326995%2C13.096198%22%2C%22value%22%3A%225.324249%2C13.094192%2C5.326995%2C13.096198%22%7D%5D%2C%22area_lt%22%3A%5B%7B%22label%22%3A2%2C%22value%22%3A2%7D%5D%2C%22date__gte%22%3A%5B%7B%22label%22%3A%222024-11-18%22%2C%22value%22%3A%222024-11-18%22%7D%5D%2C%22comment%22%3A%5B%7B%22label%22%3A%22%23hotosm-project-18084%20Mapping%20of%20buildings%20in%20Sokoto%2C%20Nigeria%20for%20%23msf%20%23missingmaps%20%23Sokoto24%22%2C%22value%22%3A%22%23hotosm-project-18084%20Mapping%20of%20buildings%20in%20Sokoto%2C%20Nigeria%20for%20%23msf%20%23missingmaps%20%23Sokoto24%22%7D%5D%7D to see how I mapped it.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/164094833

It appears that one of the building footprints here is triangular becasue you were strictly staying within the task boundaries. Thanks for sticking to the task boundaries, but If a building is mostly within your task area feel free to map the entire building footprint; otherwise it won't be accurate.

A lot of the footprints you added here envelope multiple buildings. The objective when digitising buildings is to map their footpritn i.e. where the walls meet the ground. One area per building. Looking at shadows can help you spot where one building ends and the next begins. In the primary imagery source for this project shadows are cast NW. 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/164094182

The footprints I flagged consist of excess nodes. You can select features like this and simplify them using the shortcut (shift + y). --- The orientation of some of these buildings is inacurate. Low resolution imagery biases orientation towards the cardinal directions; I recommend zooming out to aquire more accurate shape and orienation information.
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Published using OSMCha: https://osmcha.org/changesets/158502857