[OSM-talk] Dirt Roads in Mapnik, default render in OSM

[Greg Troxel]

Janko Mihelić <janjko at gmail.com> writes:

> Track is used more and more for unpaved roads. Mapnik and other renderers
> are probably a big reason, because they don't render
> Surface<http://wiki.openstreetmap.org/wiki/Surface>and
> Smoothness <http://wiki.openstreetmap.org/wiki/Key:smoothness> tags. I
> really don't know of any renderers that show these tags. I hope the new
> openstreetmap-carto stylesheet will speed up fixing this problem.

This is a good argument for enhancing the rendering to show roads that
are other than paved somehow.  A track is totally different from an
unpaved road.  In particular, a 'highway=unclassified surface=dirt' is
(around my area) legally a road, no different than if it were paved, and
almost always is a separate parcel in the sense of land ownership.  A
track is almost never legally a road, rarely has a public right of
access, but just a place you could physically drive, and is very rarely
a separate parcel.

The track/unpaved confusion is also present in at least some mkgmap
style sheets.  I agree that it's very important for many map users to
know about paved vs not-paved, at least in places where there are both
kinds.
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