[Tagging] Railway=station + area=yes questions:

[Martin Koppenhoefer]

2016-10-05 12:21 GMT+02:00 Michael Reichert <nakaner at gmx.net>:

> The problem is that railway=station has the meaning "train station for
> passengers (and goods in addition)" and has been mainly used for nodes.
> Therefore data users who render maps, usually calculate a centroid and
> place an icon there. If we start mapping definition 2 of a train station
> as an area with railway=station, these data users have to change their
> map styles. Icons will get rendered at wrong locations. Search engines
> will return wrong results.
>


"wrong results" seems a bit of an exxageration. Depending on what you want
to display (some maps could want to make the area visible by using a color
fill for example), they could use the public_transport=station object
(according to your definition) to calculate the icon position.

FWIW, lakes have the same issues, are you proposing to remove "area-type"
from the wiki and suggest lakes should only be mapped as nodes? If some
data consumers cannot deal correctly with stations mapped as areas, they
should be fixed.





>
>
> My suggestion:
> Use railway=station + name=<name of the station> only on one single
> node. Use public_transport=station + name=<name of the station> on areas
> which cover the station building, platforms and other features important
> for passengers. Use an area with railway=station_extend + area=yes +
> name=<name of the station> to map the extend.
>


I'm sure you mean "extent". The word extent is already implicit when you
use an area to represent something, no need to state it explicitly (IMHO).


My suggestion is:
1. Use public_transport=station and subtags and name to represent the area
that is interesting for passengers (and obviously not on cargo only
stations etc.), i.e. platforms, accessible buildings, etc.
this could also be a node if you are lazy.

2. Use railway=station as we always did: for the railway station, either as
an area, or as a node if you are lazy, but do not remove areas in favor of
a node.

As you see, it's almost the same.


Cheers,
Martin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tagging/attachments/20161005/f6b2fb31/attachment-0001.html>