[Tagging] Clarification on the role link in route relations

[Mateusz Konieczny]

Jan 13, 2022, 20:15 by tagging at openstreetmap.org:

> On 13/01/2022 18:30, Zeke Farwell wrote:
>
>
>> On Thu, Jan 13, 2022 at 1:16 PM Dave F via          Tagging <>> tagging at openstreetmap.org>> >          wrote:
>>
>>> I'm still struggling to            see what this has to do with route relations.
>>>
>>> Maybe you're confused between 'routing software' &            'route relations'.
>>>
>>
>> If anyone is confused about route relations vs routing            software, it is not Minh.  Here are some lists of highway            route relations in the United States if you want to see            examples:
>>
>
> I'm well aware of route relations, of all types, but what have these    to do with 'destination:ref*' tags on /ways/?
>
> How does routing software, which "lacks support for the 'role' tag"    of route relations  "cause problems for any editor, QA tool, or data    consumer"? It makes no logical sense. (quotes from Minh's original    post)
>
Problems is caused by relations with invalid elements

Adding link roads not belonging to road relation with link role
makes as much sense as adding cycleways with role nearby_cycleway.
That is - none at all.

(this does not apply if link roads are are also part of road relation, but
I am not aware about cases where it applies, maybe except UK cycleway
case that was mentioned)
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