[Tagging] Using relations to group highways

John Smith deltafoxtrot256 at gmail.com
Tue Jan 5 23:23:59 GMT 2010

I'm talking about people adding network=us_ny_ny_co

I'm not talking about things like network=NH, ref=1 or ref=M5

As for how it might render


On 06/01/2010, Alex Mauer <hawke at hawkesnest.net> wrote:
> On 01/05/2010 03:45 PM, Matthias Julius wrote:
>> Alex Mauer <hawke at hawkesnest.net> writes:
>>> On 01/05/2010 01:32 PM, John Smith wrote:
>>>> Currently there is discussion on using relations to group segments of
>>>> a highway occurring:
>>>> http://trac.openstreetmap.org/ticket/2599
>>> In that ticket, you wrote: “we think administrative polygons should be
>>> used for custom highway shields, instead of trying to tell the rendering
>>> software explicitly which shield to use”
>>> How might this work?  Presumably there’s some idea of linking
>>> primary/secondary/tertiary each with an administrative level, using that
>>> to determine which of the administrative polygons applies to the route
>>> in question, and then deciding from there which shield to use.  Do I
>>> have it right?
>> This could be derived from the ref tag and administrative boundary.
>> "A 2" should get a different shield in Germany than in the UK.  Same
>> goes for "M 5" in Michigan or UK.
> That seems like a sensible thing to do, but as far as I can tell, John
> considers that to be “trying to tell the rendering software explicitly
> which shield to use.” (The process you describe is roughly the plan for
> the US as far as I know, and thus must not be what he’s talking about)
> Hence the request for clarification.
> -Alex Mauer “hawke”

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