1. In terms of validation, it would be helpful to have a clear idea of what sorts of problems need to be fixed. I have re-validated almost all of the areas I imported (and all of them in Central Toronto), and fixed all of the building related errors/warnings I found (with a few exceptions) there weren't many errors, and many pre-dated the import. The only JOSM warning I didn't fix is "Crossing building/residential area". Yaro's and John's areas don't seem to have many errors either, although there a few isolated "Crossing building/highway" warnings (and some "building duplicated nodes" errors). I have also split big retail buildings in dense areas. 2. I'm fine with simplification, I think we should just do it. In terms of orthogonalization, I don't understand why non-orthogonal buildings are a problem. If they are, JOSM allows them to be auto-fixed. 3. I agree that the task manager squares are too big in central Toronto. A separate task can be created for central Toronto only, with smaller squares. I think the square size is fine outside of Toronto, as long as the squares are split appropriately. 4. In terms of conflation, I agree that deleting and re-adding buildings is not desirable, but I don't agree that that means it should never be done, no matter the time cost. The ideal solution here is some sort of script/plugin that auto-merges new and recently added buildings - basically, an iterated "replace geometry". DannyMcD
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