[Talk-us] Trunk

Martijn van Exel m at rtijn.org
Fri Oct 13 17:59:11 UTC 2017

Hi all,

I haven't abandoned this thread or thinking about it. It has just taken me
a while to read through all the diary comments + what is being said in this
thread. I intend to follow up with another diary post where I try to
collect this smart crowd's thoughts and suggestions, but it will probably
not until after State of the Map US that I get to this.

In the mean time, I decided to test some of the ideas posted here on a real
case: The part of Michigan SR 10 northwest of the I-696 interchange:

Since 1) this road does not seem to serve an important connecting role in
the long distance road network 2) the density of abutters and related
driveway / parking exits I judged a downgrade warranted. Please discuss
here or on https://www.openstreetmap.org/changeset/52903464 .

On the topic of tagging for the renderer, two things: 1) A US-specific
rendering would be really neat 2) Trunk 'appendices' like the one I just
downgraded do make rendering at low zooms tricky -- you end up with short
segments that seem to end in nothing.


On Sun, Oct 8, 2017 at 4:33 PM, Greg Troxel <gdt at lexort.com> wrote:

> Kevin Kenny <kevin.b.kenny+osm at gmail.com> writes:
> > Perhaps we could reach consensus more easily if we were
> > to first try to agree that the goal is to tag both physical character
> > and regional importance, and recognize that the two serve
> > different needs, and are (in the US) often grossly mismatched?
> > Then the discussion could revolve around the question of what
> > tagging is for physical character, what tagging is for regional
> > significance, and what are objective criteria for assessing
> > significance. (It's somewhat subjective, and therefore
> > contrary to the OSM spirit of "tag what is visible only on the
> > ground", but it's so necessary to getting mapping and routing
> > right that I think we have to grasp that particular bull by
> > the horns.)
> I think that would be a great step forward.
> The elephant in the room, though, is that the behavior of the default
> render is considered extremely important, and I think a lot of the
> debate is at least somewhat tied to controlling how that comes out.
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