Active in Senegal and Mali, I have noticed that changesets tagged with tasking-manager HOT projects produce very large numbers of buildings. Those buildings appear to be of very low quality. I wonder: who uses this data ?
If it is only necessary to assess that people live there, then a landuse=residential is sufficient If it is necessary to count the number of dwelling units to infer population, then a node is sufficient (maybe along with an attribute to discriminate single or multi-tenancy) If the geometry is actually necessary, then I wonder if anyone is satisfied with those semi-random shapes that, with some optimism, may be identified as being in the vicinity of actual buildings (most of the time) Enthusiastic contributors expend an awful lot of effort in flooding the map with low-quality buildings. I have seen ruins, building parts, walls, vague shadows on the ground, rubbish heaps, market stalls, cars and trucks all tagged as buildings - and I'll charitably keep from commenting on the geometric quality of those that attempt to map actual buildings (and I'll leave aside the issue of HOT leads requiring the use of outdated imagery such as Bing instead of ESRI World in Bamako). Is it the most useful way to channel the energy of inexperienced contributors ? I often find myself wishing that HOT leads introduce them to Openstreetmap through Osmose quality control rather than by churning out buildings like demented stonemasons trying to reach their weekly quota of gamified task-managing ! _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
