Hey all, Just thought I might share and see if there are others out there with similar/improved advice (perhaps suitable for turning into a learnosm or http://wiki.openstreetmap.org/wiki/OSM_Tasking_Manager/Validating_data snippet).
I find a lot of value in the "crossing buildings" JOSM validation check. Generally; I... * Find a semi populated area * Run the validations * Check crossing buildings The types of errors fall into one of two main categories: - Buildings that should be air-gapped, with only a very slight intersection - Doubled buildings - Paths or roads through buildings Doubled buildings are the ones I'm most interested in; they tend to occur at the edges of task manager jobs - two mappers are working independently and give two opinions on the size or shape of the building. I tend to fix these by picking the best match; or even using the "join overlapping ways" tool and squaring the results. I think these are the the most important of the crossed building errors, because queries on building counts can be inaccurate. Air-gapping buildings is relatively easy - simple rotation or a slight move often works. At time, using the "un-glue" tool in JOSM is needed; and squaring afterwards. Paths or roads often simply need slightly better accuracy to avoid routing people through living rooms. Tools such as OSMOSE can help find places that need a bit of care and attention: http://osmose.openstreetmap.fr/en/map/#zoom=9&lat=27.659&lon=85.652&layer=Mapnik&overlays=FFFFFFFFFFFFFFFFFFFT&item=0&level=1&tags=&fixable= What other validations do people recommend, particularly in the context of a HOT activation - routing related? Unclosed areas? etc
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