[OSM-talk] Landuse areas etc. abutting highways

Anthony osm at inbox.org
Sun Oct 4 21:34:35 BST 2009

On Sun, Oct 4, 2009 at 4:27 PM, Apollinaris Schoell <aschoell at gmail.com>wrote:

> > (a) the simple approach with
> > coterminous lines giving a notional zero width to the highway, vs.
> > (b) the more precise approach of mapping the areas either side of
> > the highway as areas that are separate both from each other and from
> > the highway.
> >
> > In practice, almost all mapping seems to use approach (a) - but
> > would approach (b) be easier for subsequent editing and addition of
> > detail, and rather clearer as it avoids superimposed ways and
> > potential editing errors?
> a) is common but bad practice, very difficult to edit and not really
> correct when it comes to micro mapping. the road is not part of the
> farm or golf course
> If you don't want to do micro mapping the best approach is to create a
> multipolygon relations for the farm and one for the golf course. use
> the portion of the highway in the polygon as outer way and delete the
> duplicate ways.
> b) is nice if you really have precise data, this matches what's on the
> ground and can be extended easily with more details

Yeah, a) is just plain bad in my opinion.  I'd like to see the two areas
mapped as border relations, with the center area also mapped as a border
relation (and landuse=right_of_way).  But apparently landuse=right_of_way
hasn't been proposed yet.
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