[Tagging] Road hierarchy

ael witwall3 at disroot.org
Sun Aug 4 10:20:49 UTC 2019


On Sun, Aug 04, 2019 at 10:30:49AM +0200, Florian Lohoff wrote:
> On Sun, Aug 04, 2019 at 09:35:41AM +0300, Tomas Straupis wrote:
> > Hello
> > 
> >   Road hierarchy is needed for a number of things:
> >   * deciding which classes of roads to display on different scales in a map
> >   * performing road network validation
> >   * other tasks (f.e. typification of buildings - orientation)
> > 
> >   Hierarchy would be different in different context: motorcar, bicycle,
> > pedestrian etc. For the time being I'm only asking about motorcars.
> > 
> >   There is non written (or I could not find in wiki) or "de facto"
> > hierarchy:
> >   * motorway
> >   * trunk
> >   * primary
> >   * secondary
> >   * tertiary
> >   * unclassified
> >   * residential
> >   * living_street
> >   In some regions unclassified has a higher position in hierarchy, in other
> > regions unclassified, residential and living_street have the same position.
> > This is fine for the time being.
> >   I'm also intentionally skipping _link classes.
> 
+1

> For me unclassified is the same as residential. The difference is that
> unclassified is for interconnecting residential areas, and residential
> has residential traffic. So for me there cant be an unclassified within
> city boundaries, and as soon as there is predominent residential it
> cant be a unclassified.

How have you come to that conclusion? It flatly contradicts the normal
meaning. Perhaps your local area uses the term "unclassified" in a way
different from the OSM convention?

ael




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