reg. decisions (off topic):

I losely follow this list since years without contributing.

My understanding of it (the tagging list) so far :


It helps to collect different views, that's great, and that's why we need it.


It cannot help much finding decisions, as it only represents a few

(hopefully) actvice and experienced mappers, not the vast majority of

mappers.


I guess the "decision" happens when the wiki pages or

OSM editors (the tools) are changed to supoort or discourage special tags.

So, it is again up to a few people, at least for those tagging issues for 
objects which

are rare, like my weighbridge question.



________________________________
Von: Colin Smale <colin.sm...@xs4all.nl>
Gesendet: Freitag, 30. Oktober 2015 01:15
An: tagging@openstreetmap.org
Betreff: Re: [Tagging] More human readable values for traffic signs






Ok, I'm impressed...



Can you give some examples of the "tagfiddling" you refer to, that annoys you? 
How do we fix that?

What tires me, is the lack of any decision-making process which is paralysing 
the whole business, and the lack of any (formal) attention for the data 
quality. Where is the (qualified) voice of data architectures, ontologies, data 
modelling, future-proofing, etc etc? All the energy spent on these mailing 
lists debating what are sometimes almost trivial issues could better be spent 
powering a large town. Some kind of "poster on the wall", an information 
framework, a metamodel, a data architecture, a governance model etc etc might 
allow some of this energy to be directed at more productive things that will 
enable real progress and growth, like 3D, data lifecycle, multi-valued and 
complex-valued attributes, and how (process-wise) to clean up and refactor 
"legacy" tagging (to name but a few of the many things that IMHO "need 
attention").

//colin

On 2015-10-29 23:18, Richard Fairhurst wrote:

On 29/10/2015 21:52, Colin Smale wrote:
I don't have any examples to counter your statement. But I am assuming
you are referring to the use of a spatial database.  It is IMHO a high
barrier to entry. Are we to expect users to have that kind of
infrastructure and skills at their disposal? What about mkgmap and the
many other consumers which simply work with a snapshot in PBF or XML and
need to be able to do the right thing with the data with lets say a dual
core and 8GB.

Indeed. It's very possible to "do the right thing" by running spatial queries 
on the data, without a spatial database, working directly on a PBF snapshot, 
and running lightning fast in just a few GB of memory and on a desktop-class 
machine.

I can confirm this because I've done exactly that, in a tool which I'm 
delighted to see is proving popular: https://github.com/systemed/tilemaker, and 
in particular, 
https://github.com/systemed/tilemaker/blob/master/CONFIGURATION.md#lua-spatial-queries
 .
[https://avatars1.githubusercontent.com/u/694425?v=3&s=400]<https://github.com/systemed/tilemaker>

systemed/tilemaker ยท GitHub
README.md Tilemaker. Tilemaker creates vector tiles (in Mapbox Vector Tile 
format) from an .osm.pbf planet extract, as typically downloaded from providers 
like Geofabrik.
Weitere Informationen...<https://github.com/systemed/tilemaker>



That aside, even if you accept that the interests of the data consumer are 
paramount - which, as a data consumer, I don't, and I'm rather tired of 
tagfiddlers without development knowledge second-guessing what developers might 
need - the number of consumers to whom it's important to differentiate (say) UK 
and French no entry signs is an 0.001% edge case, not one worthy of defining 
the entire tagging model.

You could just as well argue that you're penalising the little guy by 
preventing him from searching simply for "traffic_sign=no_entry" and making him 
search either for 193 country-specific values, or run one full-text query. 
Given your concern about doing things "very cheaply", I'm pretty sure more 
people have a spatial index on OSM data than have a full-text index.

But let's remind ourselves of Mateusz's original posting:

I recently started tagging traffic signs and I am surprised by wide
usage country-specific traffic sign codes.

I think that at least common signs may be tagged by human-readable
values.

Quite.

Richard

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