I'd recommend against doing a bulk import of any kind on the Microsoft Building data. It's incredibly useful data and I've slowly been adding these buildings throughout California and Oregon using RapiD. The data isn't great everywhere though. In some subdivisions it's nearly perfect. In others each building requires rotation, and in many places there's just bogus or outdated buildings mapped. You really have to do it by hand, otherwise we will end up with a TIGER-like data quality problem that will take years to cleanup.
-Tim > On Dec 11, 2020, at 10:17 AM, Mike Thompson <[email protected]> wrote: > > > > On Fri, Dec 11, 2020 at 3:59 AM Joe <[email protected] > <mailto:[email protected]>> wrote: > > > I will check of blatant errors such as the building no longer to exist or > wrongly generated by AI > such as a building outline in farmland that not exist while importing to. > ... > There are lucky for mapper who mapping United States is the plenty of ultra > high resolution of satellite imagery, and imagery date checkup in Bing > satellite imagery with JOSM. Most urban area are very new as within 1~2 years > > 1) Reality can change very rapidly due to economic growth and natural > disasters, such as fires. After a natural disaster people do not always > rebuild, and if they do, they do not always build on the same footprint. > With economic growth many times old buildings are removed, and new ones > constructed in their place. > 2) As far as I know, Bing imagery is the only major imagery source available > to OSM which shows a collection date. From what I have seen, that collection > date is often many years old, and is often given as a range spanning many > years. Also, these are mosaiced datasets. You could have half of your screen > from two years ago, and half from five years ago. You need to check every > single tile. > 3) It would be best if you could get permission from local authorities to use > their imagery for verification. This is generally newer, and has a specific > collection date for the entire dataset. > > Mike > > > _______________________________________________ > Imports-us mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/imports-us
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