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

[Greg Troxel]

"John F. Eldredge" <john at jfeldredge.com> writes:

> So, how would you classify a one-lane "road" leading through a former
> field, now overgrown with 30 years or so of bushes and saplings,
> leading to a billboard adjoining a motorway? The only improvements the
> "road" receives is to be mowed periodically to keep it passable, and
> its only use is by crews periodically changing what is displayed on
> the billboard.  This hardly qualifies as agricultural use, but I
> tagged it as a track because it is too rudimentary to qualify as
> anything else.

I'd call it track, if you need a something kind of like a 4WD truck to
get there, and service if a regular car would work ok on any random day
you show up.  I don't think agricultural use is necessary for track.
It's more "not a real road, not really usable by regular cars."

service vs track is actually not a big deal, because unlike
highway=unclassified/residential (and higher), highway=service does not
have an implication that the public has a right of use.  I would
implicitly treat highway=service as having access=destination if it has
no access tags, and highway=track I would assume access=private.

Probably the semantics of default access values needs to be more clearly
defined.
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