[talk-au] Correct tagging of railway=platform where it is a sandwich platform

Ewen Hill ewen.hill at gmail.com
Tue Feb 19 08:58:43 UTC 2019


Thank you Andrew and Warin,
    There are 1734 platform_edge elements, mainly in Germany and
surrounding countries as well as in London and 3 in South Korea. I see this
probably being a better solution for underground  or complex interchanges
where platforms are not visible however I do think this is overkill and are
1700+ elements going to become standard in all the rendering engines as
Warin commented/

The backstory is that most Melbourne stations with a sandwich platform have
been commented on that they need to be split and this appears to be a
rather tedious process that has little reward to very few. I want to make
sure that we are future proofing this and the best way to proceed.

Ewen

On Tue, 19 Feb 2019 at 07:46, Warin <61sundowner at gmail.com> wrote:

> I too am not aware of 'platform edge'.
>
> Of what use is it, other than making more work/adding data bloat?
>
> Not used by route relation for public transport.
>
> Rendered?
>
> Used by on the fly routers?
>
> I prefer to split the platform so it is clear which side is what, so I am
> for A.
>
> But am not worried by it.
>
> On 18/02/19 23:23, Andrew Harvey wrote:
>
> > All methods are in current use:
> >
> > An example of A:
> https://www.openstreetmap.org/#map=19/-34.04169/151.12293
> > An example of C:
> https://www.openstreetmap.org/#map=19/-33.67210/151.11468
> >
> > I wasn't aware of platform_edge
> > https://wiki.openstreetmap.org/wiki/Tag:railway%3Dplatform_edge but in
> > light of the detailed wiki write-up of it, I think it's better if we
> > migrate to B. So map the whole platform area, but then add linear ways
> > for platform_edge along the sides.
> >
> > On Mon, 18 Feb 2019 at 21:44, Ewen Hill <ewen.hill at gmail.com> wrote:
> >> I'm interested in the preferred way of creating a sandwich railway
> platform
> >> where
> >> a) there are railway lines on both sides and
> >> b) trains stop to pick up passengers on both sides and
> >> c) there are few physical barriers between both platforms and
> >> d) there is sufficient aerial imagery to allow detailed platform layout
> >>
> >> Is it better to
> >> a) split the platform in the middle or
> >> b) add platform_edge and include platform number as the reference or
> >> c) no need to do anything, the reference="platform 8/9" on the platform
> >> polygon suffices and platform_edge is overkill.
> >>
> >> Thanks in anticipation
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> --
> >> Sent from: http://gis.19327.n8.nabble.com/Australia-f5416966.html
> >>
>
> _______________________________________________
> Talk-au mailing list
> Talk-au at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-au
>


-- 
Warm Regards

Ewen Hill
Internet Development Australia
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-au/attachments/20190219/eb728c75/attachment.html>


More information about the Talk-au mailing list