[Tagging] Was public_transport=platform intended to always be combined with highway=bus_stop?

[Markus]

On Sun, 4 Aug 2019 at 13:50, yo paseopor <yopaseopor at gmail.com> wrote:
>
> Trains stops in a specific point. Here in Spain they have some sign that says=Cabeza de tren (Head's line) . It is important because when you do a map that can be used by the public transport user, but also the public_transport driver you should have the two positions. OSM data can be infinite and can be professional.

There is a pre-PTv2 tag for this: railway=stop. [1] I'm fine if people
map them, but IMHO they should not be added to the route relations;
they are irrelevant for passenger routing.

[1]: https://wiki.openstreetmap.org/wiki/Tag:railway%3Dstop

> Also you have people saying in this thread for manage in a semiautomatic way the transport lines data is necessary these thow kind of points

It's still unclear to me why the stop positions are required for this.

> Well this is an error. For mi public_transport=platform should be a real platform. It has no sense to have an irreal tag.
> In the stop_position tag you can assure this with platform=yes or platform=no.

Unfortunately it doesn't mean a real platform, but a waiting area (see
also Polyglot's message). If it would have meant a real platform,
there were no PTv2 tag for the waiting area of a stop without
platform, which is the normal situation for bus stops at many places.

Markus