[Tagging] shop=gun shop=guns shop=weapons shop=firearms

[Minh Nguyen]

Vào lúc 06:47 2023-06-23, Martin Koppenhoefer đã viết:
> I believe the US is an exception then, at least the current wiki 
> confirms what I wrote (and in this case I didn't write it myself ;-) ) , 
> from highway=motorway:
> 
> Typically highway 
> <https://wiki.openstreetmap.org/wiki/Key:highway>=motorway should be 
> *_used only on roads with control of access 
> <https://en.wikipedia.org/wiki/Controlled-access_highway>_*, or selected 
> roads with limited access 
> <https://en.wikipedia.org/wiki/Limited-access_road> depending on the 
> local context and prevailing convention.
> 
> Generally roads with control of access 
> <https://en.wikipedia.org/wiki/Controlled-access_highway> are proclaimed 
> in government documents, and have an official status as a controlled 
> access road, sometimes this can include the term motorway, freeway or 
> expressway among others in the road name. These kinds of roads usually 
> have a special designation by the law, with a set of laws specifically 
> applied on them. Generally some restrictions are placed on the kind of 
> vehicles or traffic which can be on roads which should be classed as 
> highway <https://wiki.openstreetmap.org/wiki/Key:highway>=motorway, such 
> as no pedestrians, bicycles, livestock, horses and so on.

There's probably little disagreement over these criteria as guiding 
principles, but the question is how strictly to apply them. I can point 
to technical publications, signs, laws, etc. that definitively state the 
existence of a particular freeway/motorway/expressway, but I can just as 
easily point to exceptions, some of them rather absurd. The definition 
already recognizes this possibility by including some "weasel words" 
(generally, usually). Moreover, if we venture into a region with less 
developed transportation infrastructure, the contrast between a motorway 
and everything else will be stark enough that formalities like signs 
would be completely unnecessary in all cases.

Ultimately, OSM is a geodatabase, not a legal database. The purpose of 
this definition or any other tagging definition is to ensure some degree 
of consistency in what the tag is applied to. But if we focus too 
pedantically on legal status at the expense of common sense, then we've 
reinvented designation=*, and mappers and data consumers have to find 
yet another key to express what could've been in highway=*.

-- 
minh at nguyen.cincinnati.oh.us