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

[Joseph Eisenberg]

Agreed, there are enough tags for public transport already. I don't
think anything new is needed.

If there is a platform where buses stop, then there's a bus stop, and
a platform. The platform is a physical feature, and I believe it would
still be a highway=platform even if the bus service were discontinued.

The bus stop represents that public buses actually stop at the
location to pick up or drop off passengers.

The ref= should go on whatever of the two features that it actual
refers to: if it's on the bus stop sign or pole, it probably
represents the bus stop, but it might actually refer to the physical
platform and each different bus route that stops there might have a
different ref=* for that bus stop.

Perhaps sometimes you'll have to add the ref=* to both the stop and
the platform, but that's ok. The public_transport=stop_position +
=platform + stop_area idea often leads to putting the same ref on 3
different objects.

In all other situations (rail platforms, regular bus stops without an
elevated platform, tram stops etc), the Refined_Public_Transport
proposal is clearly simpler than using public_transport=* tags, so it
looks like a good option.

Joseph

On 7/31/19, yo paseopor <yopaseopor at gmail.com> wrote:
> please: NO MORE TAGS
> Either... can we mix all the tags of all the versions of Public transport
> into a UNIQUE scheme for ALL kinds of transports, tagging it at the same
> way with the same name: from electric autonomous buses to new Uber's
> helicopters?
> A scheme has to be scalable. Can we define that? Can we design that?
> -Basic parts
> -Basic tags
> -Basic values
>
> And then... some kind of automated conversion of tags done by local
> communities, with specific instructions at the wiki. Also tag as deprecated
> all the old mixed stuff.
>
> What do you think?
> Salut i mapes (health and maps)
> yopaseopor
>
>
> On Wed, Jul 31, 2019 at 10:37 AM Markus <selfishseahorse at gmail.com> wrote:
>
>> Hi Joseph
>>
>> On Tue, 30 Jul 2019 at 15:59, Joseph Eisenberg
>> <joseph.eisenberg at gmail.com> wrote:
>> >
>> > I still haven't seen any benefit in adding public_transport=platform
>> > to highway=bus_stop or highway=platform or railway=platform features,
>> > and it doesn't look like the =stop_position tag is needed for routers
>> > either, so all 3 of the main public_transport tags (except perhaps the
>> > stop_area relation?) are rarely helpful.
>>
>> I agree, and it seems that most people that took part in this long
>> discussion [1] i initiated in April about improving public transport
>> mapping agreed too.
>>
>> [1]:
>> https://lists.openstreetmap.org/pipermail/talk-transit/2019-April/002052.html
>>
>> While highway=bus_stop works in most simpler cases, it doesn't work
>> very well for bus stations. For example, consider this simplified map
>> of the postbus station in Bern. [2]
>>
>> [2]: https://wiki.openstreetmap.org/wiki/File:Postautostation_Bern.svg
>>
>> It consists of seven platforms, numbered 1–7, and a mere pole on the
>> sidewalk with the number 8. As highway=bus_stop and highway=platform
>> both use the the highway=* key and thus can't be combined, for every
>> platform i would need to map a highway=platform and a highway=bus_stop
>> object. But which one should get the ref=*? Both? And which one should
>> be added to the route relation? Usually highway=bus_stop is added to
>> the route relation, but for trains, it is the platform.
>>
>> A possible solution of this problem were to invent a new tag for
>> stops, which doesn't use the highway=* or railway=* key and thus can
>> be combined with highway/railway=platform (e.g. public_transport=stop;
>> or, alternatively, a new tag for platforms). However, i haven't got
>> any feedback on that idea, so i don't know whether the community would
>> accept such a change in tagging.
>>
>> Regards
>>
>> Markus
>>
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