[Tagging] track smoothness/quality

Joseph Eisenberg joseph.eisenberg at gmail.com
Sun Jul 7 00:21:25 UTC 2019


I would think that an unimproved track across naturally solid rock or
naturally well-compacted gravel would not be tracktype=grade5 - while it
might be bumpy, it’s probably passable by any vehicke with sufficient
clearance and tire size, even when wet, unlike a track of unimproved clay,
silt or loam which requires 4wd or is simply impassable when it rains? But
I’m not an expert on 4wd.

On Sun, Jul 7, 2019 at 8:58 AM brad <bradhaack at fastmail.com> wrote:

> What wiki are you looking at?   At
> https://wiki.openstreetmap.org/wiki/Key:tracktype,  grade5 says
> "Soft.
> Almost always an unimproved track lacking hard materials, same as
> surrounding soil. "
>
> What if the surrounding soil is hard materials???
> Clearly written by someone that has not seen rocky soil.
>
> Brad
>
> On 7/3/19 2:09 AM, Mark Wagner wrote:
> > Option 3 won't work.  Locally, tracks come in two basic types:
> >
> > 1) A logging road created by a work crew with a bulldozer.  Cut down
> > any trees, scrape off any remaining vegetation, level the road
> > side-to-side, and call it done.  These roads range in quality from
> > "easily passable by a passenger car" to "high-clearance
> > four-wheel-drive vehicle required".
> >
> > 2) A ranch road created by a truck driving the same route repeatedly
> > for years.  These are generally fairly smooth, but the older ones are
> > only passable by a high-clearance truck because of the central ridge
> > between the tracks.
> >
> > According to the wiki, these are uniformly "grade5" ("Almost always an
> > unpaved track lacking additional materials, same surface as surrounding
> > terrain."), although calling them "soft" is misleading, since the local
> > soil produces a rock-hard surface during the summer and fall (and a
> > muddy one during spring melt). They're tagged pretty much at random as
> > anything from "grade1" to "grade5".
> >
>
>
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