Without getting into scientific, expert or philosophic discussions, I think it would not hurt to have a standardized way of recording say a bandwidth for dimensions like width and ele. The example in this case was width=3 m - 6 m or so, with the assumpion this notation would not be usable to data users. I’m just saying that it would not be that hard to find a processable notation for this, and simply asked if it already exists or has been proposed.
Agreeing on it is a different matter, especially in OSM circles. Mvg Peter Elderson > Op 18 aug. 2018 om 10:44 heeft Christoph Hormann <o...@imagico.de> het > volgende geschreven: > >> On Saturday 18 August 2018, Peter Elderson wrote: >> Sure. But is there a standard method to indicate this uncertainty in >> OSM, which can be processed by data consumers? > > This is outside the scope of of OSM IMO and not practical for mappers to > determine in a meaningful way. You can specify the method used to > determine the width (using source:width=*) and different methods will > have different inherent measurement accuracies but the accuracy of the > values depends on lots of other factors beyond that. > > Practically mappers have usually no way to verifiably determine the > accuracy of their measurements unless they have a reference value of > known high accuracy in which case the whole excercise is pointless. > Theoretically mappers could practice their measurement skills and > assess their personal measurement accuracy based on test measuring a > statistically significant number of cases under comparable > circumstances with a known accurate reference value but practically > this is not feasible. > > -- > Christoph Hormann > http://www.imagico.de/ > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
