This, on a software discussion board. So many horrible errors in such a small package! I sort of have ~3 different map+nav systems, and they won't even agree wi

This, on a software discussion board. So many horrible errors in such a small package! I sort of have ~3 different map+nav systems, and they won't even agree with each other what the situation is, never mind the Real World (tm). Speed limits specifically: they are in agreement about 80% of the time. Machine vision, triple meh. Even with strictly standardized set of easily recognizable shapes, this is useful for post facto mapping ( https://blog.mapillary.com/tutorials/2017/08/21/mapping-traffic-signs-in-osm.html https://blog.mapillary.com/tutorials/2017/08/21/mapping-traf... ), but nowhere near realtime without false negatives.