Some weeks ago, I have written something on reliable mapping, see https://wiki.openstreetmap.org/wiki/User:Ulamm/Mappers,_evaluators_and_feedback
For a special feature, I'd also added it to an existing article, but it was reverted, see "Attention" in the upper table of https://wiki.openstreetmap.org/w/index.php?title=Tag:bicycle%3Duse_sidepath&oldid=1119074 Ulrich Am 24.12.2014 um 01:29 schrieb tagging-requ...@openstreetmap.org: > Date: Tue, 23 Dec 2014 17:37:34 +0100 > From: Rainer Fügenstein <r...@oudeis.org> > To: "Tag discussion, strategy and related tools" > <tagging@openstreetmap.org> > Subject: [Tagging] Accuracy of survey > Message-ID: <811143140.20141223173...@oudeis.org> > Content-Type: text/plain; charset=ISO-8859-1 > > > while we are at it, imagine the following situation: > > mapper A, by means of DGPS, MilStd GPS, crystal ball etc., is able to > achieve an accuracy of, say, a few centimeters and uses it to add new > nodes (POIs) to OSM. > > some time later, mapper B with his/her ancestors mechanical GPS device > (*), achieving an accuracy of max., say, 15 meters, surveys the same > area, figures out that (by his/her point of view) POIs added by mapper > A are 15 meters off and corrects their location. > > what is needed here is some tag, saying "don't touch these > coordinates, they've been surveyed with high(est) accuracy". > > I heard this argument from an pipeline expert, noting that marker > surveyed with consumer GPS are (for their standards) way off their > real location. > > maybe this is a non-issue after all, if consensus is that consumer > GPS accuracy is sufficient enough. > > cu
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