[talk-au] Tagging Gazetted Road Routes (National, State, Regional...)

[Andrew Hughes]

Hi Andrew,

No I had not seen that and it's really helpful thank you.

This is quite challenging to explain in an email but I will try...

*Scenario:* Given a way, how can I determine if that way is part of a state
or national route with a name?

*Scenario in Action:*

   - Given the way "Mulgrave Street Gin Gin QLD"
   https://www.openstreetmap.org/way/31973923
   - Is this part of any relation.... Yes there are 2
      - First relation is the A1, is this a national/state Highway YES!
      because it has the route=road, network=NH
      https://www.openstreetmap.org/relation/198279
      - Second relation is "Bruce Highway", is this national/state, NO!
      because it does not have a network=NH or S tag.
      https://www.openstreetmap.org/relation/198331

*What's missing from the above:*

   - The Bruce Highway relation
   https://www.openstreetmap.org/relation/198331
      - Does not identify that it is related to the A1 - National Highway
      - Does not identify that south most section in North Brisbane the M1
      - Does not identity that this is a State Route - *but I am unsure if
      it should*
   - Similarly, the A1 relation
   https://www.openstreetmap.org/relation/198279
      - Does not identify that it is related to the Bruce Highway (route)
   - The way  "Mulgrave Street Gin Gin QLD"
   https://www.openstreetmap.org/way/31973923
      - Can't be reliably determined to be part of a state/national route
      and found to be named "Bruce Highway". Yes, I can say its on the A1
      (national highway) but I can't say that the Bruce Highway is a State/Road
      route


*My 2c*

I'm unsure if what I am looking for should exist in a hierarchy of
parent/child relations, or if it is best left to trawling through tags and
finding references by convention and hope that things are tagged correctly.
I kinda think the first is correct, or else why would OSM even have
relations?

Parent Child relation down to the way members....

   - RELATION: name=National Highway; ref=A1; route=road; network=NH
      - RELATION:   name=Bruce Highway  ref=A1:M3; route=road; network=S
      <--- not sure if this is S or NH
         - RELATION:   name=Bruce Highway  ref=A1; route=road; network=S
            - WAY....
            - WAY....
         - RELATION:   name=Bruce Highway  ref=M1; route=road; network=S
            - WAY...
            - WAY...


The above would allow a way's membership and hierarchy to be traversed.

*Thoughts?*

Please let me know CHEEERS!




On Thu, 11 Aug 2022 at 14:50, Andrew Davidson <theswavu at gmail.com> wrote:

> On Thu, Aug 11, 2022 at 11:48 AM Andrew Hughes <ahhughes at gmail.com> wrote:
> > Some worldwide/geographic tagging guidelines exist, that are based on a
> combination with the "network" tag: see
> https://wiki.openstreetmap.org/wiki/Relation:route#Road_routes
> >
>
> Have you read
> https://wiki.openstreetmap.org/wiki/Australian_Tagging_Guidelines/Roads#Routes
> ?
>
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> Talk-au mailing list
> Talk-au at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-au
>
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