Indeed, the examples at https://wiki.openstreetmap.org/wiki/Tag:railway%3Dplatform_edge don't split the platform into two halfs, they leave the island intact and use a multipolygon relation to assign platform numbers to the platform edge, with the island as a contiguous area.
On Tue, 19 Feb 2019 at 20:00, Ewen Hill <[email protected]> wrote: > 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 <[email protected]> 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 <[email protected]> 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 >> [email protected] >> https://lists.openstreetmap.org/listinfo/talk-au >> > > > -- > Warm Regards > > Ewen Hill > Internet Development Australia > _______________________________________________ > Talk-au mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-au >
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