[Tagging] Superroutes - good, bad or ugly?
egil at riseup.net
Fri Mar 15 16:53:39 UTC 2019
Sarah would you be willing to write a proposal for this?
Sarah Hoffmann <lonvia at denofr.de> skrev: (15 mars 2019 14:03:28 CET)
>On Fri, Mar 15, 2019 at 12:07:50PM +0000, marc marc wrote:
>> Le 15.03.19 à 12:27, Hufkratzer a écrit :
>> > is that a good/sufficient reason to define a new relation type?
>> imho nearly no routing tools (nor foot nor bus) is currently able
>> to use a relation type=route with relations as child.
>> so that's a good reason to create/improve a doc if superrelation is
>> needed for ex for routing (of course maybe some mapper need
>> only for the fun of having a relation that collect all other).
>> for ex how a "data user" can detect "it 's a superroute" <> "it's 2
>> route with a shared segment" ?
>waymarkedtrails uses the network tag as an indicator. With the
>same network tag, the child is considered a segment. If the network
>tag is different, then the child is considered a route on its own
>that happens to be used by the superroute.
>> maybe the tag network should be the same and/or the name (the country
>> XYZ may move the a scope tag)
>> the main relation must/should/mustn't/shouldn't have all/some same
>> as the child ?
>> all/a lot of child tag must move to the main relation only ? (that's
>> what we do with MP : we don't duplicate alls tags to way + relation)
>The disadvantage of all these proposals is that it is impossible
>to figure out if a relation is a route or only part of a superroute
>without looking at the parent. That information is much more
>valuable than the information that a route is a 'superroute' (that's
>obvious anyway as soon as there is a relation member). So I'd
>prefer seeing a dedicated tag added to relations that are just a
>'route_segment=yes', for example. Or even better, directly name the
>sections, e.g. 'part=German section' or 'part=2. Etappe'. Then we can
>get rid of the descriptive name tags.
>Tagging mailing list
>Tagging at openstreetmap.org
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