[Tagging] Feature Proposal - RFC - value 'basic_network' - cycle_network?

[Brian M. Sperlongano]

On Sat, Nov 27, 2021 at 5:02 PM JochenB <JochenB at wolke7.net> wrote:

> Am 24.11.2021 um 05:10 schrieb Adam Franco:
>
> As I've been reading this long discussion the thought that keeps coming up
> in my mind is that "relation are not categories":
> https://wiki.openstreetmap.org/wiki/Relations_are_not_categories
>
> These giant relations are bad, but they are not categories. They would be
> categories if one could also recognize without these relations that the
> ways are part of the network. But this information is only mapped in OSM
> when the ways are included in the relation.
>

I would beg to differ, as these giant relations seem quite specifically to
be categories.  I see them as no different from taking every way that is
part of the US Interstate Highway System and placing them in a single
relation called "Interstate Highway System".  Surely the US Interstate
Highway System is a "network" as the roads are all interconnected.
However, there is absolutely positively no need to shove them all into a
relation.  Instead they are all members of individual route relations,
tagged type=route, route=road, network=US:I.

It seems that the challenge here is that you have all of these cycling ways
which are certainly part of an interconnected network, though they are not
part of any named and numbered route.

I see this as very simple - we have a tag for this, network=lcn[1].  These
ways are all part of a local cycling network, so tag them that way.

The wiki page for network=lcn indicates that this should be tagged on route
relations, however, I note 2,500 usages of that tag on ways.  While this is
small compared to the 38,000 usages on relations, it's clearly in use on
ways directly.  I would propose to solve this problem quite simply by
updating the documentation to reflect this real-world usage -- network=lcn
is is being used on ways, and could be tagged directly on highway=cycleway
features.

If you want to query for the "basic network", now you just query for
highway=cycleway + network=lcn.

[1] https://wiki.openstreetmap.org/wiki/Tag:network=lcn
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