[OSM-talk] using areas and/or nodes for citys/towns, car parks, etc.?

[Gernot Hillier]

Hi!

Mario Salvini schrieb:
> Gernot Hillier schrieb:
>> And if we use boundary for that, why do we then allow to tag areas as
>> places?
>>   
> place=city describes the "landused part" of a city or better the urban 
> area of a city; normally surrounded with gateway-signs.
> boundary=administrative (+ admin_level) describes the administrative 
> area (the core-city itself plus surrounding areas e.g. fields/farms with 
> belongs to the city as well)

Aha, thanks. That sounds like a good explanation to me - even if I have
no idea how to find out the administrative area for a city in Germany.
So I'll probably end up only using the area part of it.

So to summarize: we should have three things for a city: a node tagged
with place=city in the city centre, an area with place=city describing
the landused part and an area surrounding the other one tagged with
boundary=administrative. And finally all three shall share a common
name=Cityname tag?

If this is the common perception: I plan to summarize this on some small
page linked on http://wiki.openstreetmap.org/index.php/Mapping/Features
and probably add a small link to it on the Map_Features page. Do we need
some formal process for that or can I just go ahead?

And some final questions stay:
* What is the minimum of those three things which should be present to
be rendered correctly? It seems Mapnik doesn't render only areas with
place=city.
* What about districts? Do we need all those three objects listed above
for them?

--
Gernot