[Tagging] public_transport=platform rendering on osm-carto

[marc marc]

Le 20. 06. 18 à 19:23, osm.tagging at thorsten.engler.id.au a écrit :
> In places where there was only a highway=bus_stop node, this is often now dual tagged with public_transport=platform as well (which is correct).
> In places where there was only a highway=platform way/area, this is often now dual tagged with public_transport=platform was well (correct too).

I agree, no issue with that

> But in places that have both a highway=platform and a highway=bus_stop, dual tagging both with public_transport=platform is wrong. The two should be merged into only a single way/area with public_transport=platform. The problem then is that you can't really dual tag that anymore, because the highway=platform and highway=bus_stop tags are in direct conflict and can't be tagged on the same object.
> And because the lack of rendering in osm carto, many people are not going to use PTv2 properly in this case, because they can't dual tag it so that it will properly show up on the map.

the best way to handle this with PTv2 and still have something render
is to have highway=platform public_transport=platform on the way
and move the highway=bus_stop public_transport=stop_position on a node
part of the road.
with this, you have only one plateform, one stop_position and no render 
issue.

> Implementing public_transport=platform rendering purely as a 1:1 replacement of highway/railway=platform, without properly supporting it as a replacement of bus_stop, tram_stop, and so on is not going to fix that issue.

Render the most commun used public_transport=platform in stead of the 
old less common used highway=platform is still a improvement I thing.
it 'll not solve the whole mess, but it's a first good/easy step.