<div dir="ltr">railway=platform unambiguously refers to an actual platform, mapped as a way or as an area.<div><br></div><div>public_transport=platform + tram=yes (+railway=tram_stop) can be mapped on an isolated node (so not part of the railway=* way).</div><div><br></div><div>It would be my preference to ONLY map it on (isolated) nodes. That's what I do for bus stops <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">public_transport=platform + bus=yes (+highway=bus_stop). Nodes should be preferred, as they have coordinates. And all the extra details like name, ref, route_ref, operator, network, zone should be mapped ONCE on these nodes.</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></div><div>If we can move to such a scheme it would simplify public transport mapping in OSM a lot.</div><div><br></div><div>At some point it was decided to use public_transport=stop_position for a node which is part of the highway/railway and public_transport=platform for the isolated node next to the highway where the passengers wait. Maybe it would have been better to use public_transport=pole for this purpose, or public_transport=passengers or public_transport=abstract_approximate_position_on_node_next_to_way_containing_all_the_details_for_this_stop_and_these_are_the_nodes_that_represent_the_stops_in_the_route_relations. But we use public_transport=platform, regardless of whether an actual platform is present.</div><div><br></div><div>If there is an actual platform, it can be mapped as a way or area, with possibly tactile_paving=yes, wheelchair=yes, but no need to repeat the name on them and no need to add them to the route relations. They can be added to stop_area relations.</div><div><br></div><div>Polyglot</div></div><div class="gmail_extra"><br><div class="gmail_quote">2018-02-20 22:28 GMT+01:00 Selfish Seahorse <span dir="ltr"><<a href="mailto:selfishseahorse@gmail.com" target="_blank">selfishseahorse@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">> in osm, platform is where people wait to take the train.<br>
> people always are "somewhere" before taking the train.<br>
> osm platform <> irl plateform<br>
<br>
</span>Do you mean `public_transport=platform` [^1], `railway=platform` [^2] or both?<br>
<br>
If `railway=platform` means the same as `public_transport=platform`,<br>
then the wiki page about `railway=platform` needs an update, because<br>
it currently reads 'a railway platform'.<br>
<span class=""><br>
[^1]: <<a href="https://wiki.openstreetmap.org/wiki/Tag:public_transport%3Dplatform" rel="noreferrer" target="_blank">https://wiki.openstreetmap.<wbr>org/wiki/Tag:public_transport%<wbr>3Dplatform</a>><br>
[^2]: <<a href="https://wiki.openstreetmap.org/wiki/Tag:railway%3Dplatform" rel="noreferrer" target="_blank">https://wiki.openstreetmap.<wbr>org/wiki/Tag:railway%<wbr>3Dplatform</a>><br>
<br>
</span><span class="">> > how can we know whether there is a platform?<br>
><br>
> by geometry. if it's a way, it is a "real" plaform.<br>
> if not, it's unknown.<br>
<br>
</span>'Unknown' means we don't know anything. If `railway=platform` really<br>
is identical to `public_transport=platform` this would mean that there<br>
is no way to define that there is no platform.<br>
<span class=""><br>
> maybe a better value should be "embarkation point" but it's "too late"<br>
> to change a so common value.<br>
<br>
</span>Why not just 'stop'?<br>
<br>
It's never too late to correct a mistake ...<br>
<div class="HOEnZb"><div class="h5"><br>
<br>
On 20 February 2018 at 22:11, marc marc <<a href="mailto:marc_marc_irc@hotmail.com">marc_marc_irc@hotmail.com</a>> wrote:<br>
> Le 20. 02. 18 à 21:50, Selfish Seahorse a écrit :<br>
>> On 20 February 2018 at 21:24, marc marc <<a href="mailto:marc_marc_irc@hotmail.com">marc_marc_irc@hotmail.com</a>> wrote:<br>
>>> Le 20. 02. 18 à 21:17, Selfish Seahorse a écrit :<br>
>>>> If no one objects, I'd like to change the wiki page [^1] so that<br>
>>>> `railway=platform` should not be used on nodes.<br>
>>><br>
>>> I objets and request to do the opposite :<br>
>>> remove the "forbiden" node for railway=platform<br>
>>><br>
>>> in almost all osm objects, it makes sense to use a node if<br>
>>> you don't know the precise geometry or if the object has<br>
>>> a small geometry<br>
>>> or<br>
>>> allow to use a way when a more precise geometry is desired.<br>
>><br>
>> I'm sorry, I wasn't precise: I'd like to change the wiki page so that<br>
>> `railway=platform` should not be mandatory for tram stops without<br>
>> platform.<br>
><br>
> in osm, platform is where people wait to take the train.<br>
> people always are "somewhere" before taking the train.<br>
> osm platform <> irl plateform<br>
> maybe a better value should be "embarkation point" but it's "too late"<br>
> to change a so common value.<br>
><br>
> > how can we know whether there is a platform?<br>
><br>
> by geometry. if it's a way, it is a "real" plaform.<br>
> if not, it's unknown.<br>
><br>
> Regards,<br>
> Marc<br>
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