<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Apr 6, 2022 at 7:59 AM Frederik Ramm <<a href="mailto:frederik@remote.org">frederik@remote.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
my thought is that, in general, the default should not be added to OSM. <br>
For example, I don't want 95% of streets in Germany to receive a <br>
surface=asphalt or a motor_vehicle=yes!<br></blockquote><div><br></div><div>
I tend to agree as a general rule, and I've been annoyed, for example, of StreetComplete prompting me with quests to record the surface value on every street I walk by. Of course I can configure SC to turn off this or that quest, but it seems like it would be a good cue to editor software generally to de-emphasize prompts for users to add information that is normally assumed to be a certain default in a particular country or region.</div><div><br></div><div>Another tagging that I think falls in this bucket (at least in my area) is when to tag lanes=*. It seems like it would not be terribly useful to tag lanes=2 on every highway=residential in my town, while it would probably be appropriate to tag lanes=* for perhaps any highway=tertiary and above regardless of value. I generally go with "common sense" on this kind of thing but it sure would be nice to be able to reference documentation on assumed defaults.</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">We need to establish good ways to make country-wide (or region-wide) <br>
defaults available in a machine-readable way. Tagging those defaults <br>
onto every single object in one country because the default in this <br>
country might be different from the default in the next country would <br>
(a) create too much data inflation and (b) mean an edit orgy every time <br>
the default changes in a place.</blockquote><div><br></div><div>Wikidata is a sensible place to store this information as it is here today, performant, and OSM data consumers are already using it to conflate externally-linked data with OSM. It would be very straightforward to document something like a default speed limit in a city using wikidata.</div></div></div>