[Tagging] Smoothness possible values, straw poll.

[Bryce Nesbitt]

On Tue, Mar 17, 2015 at 2:53 PM, David Bannon <dbannon at internode.on.net>
 wrote:
> Incidentally, what exactly are we measuring with
> http://wiki.openstreetmap.org/wiki/Key:mtb:scale

At grade 6, it's a list of things including a drop of over 2m.
It's fairly well fleshed out.



On Tue, Mar 17, 2015 at 2:53 PM, David Bannon <dbannon at internode.on.net>
wrote:

> On Mon, 2015-03-16 at 23:22 -0700, Bryce Nesbitt wrote:
>
> >         road_usable=car;4x4;mt
> > Tag what's there: measure something.  Don't tag an interpretation.
>
> Bryce, please tell us how it should be done then. Don't just sit there
> saying "computer says no". A drovers dog can tell this capability is
> needed. Look at how many proposals there have been, at how many times
> its hit this thread.
>

No telling what a drovers dog is, but:

highway=track
surface=dirt
constraint:cobble_size:sustained=15cm
constraint:cobble_size:average=25cm
constraint:sand:worst=30cm
constraint:side_slope:worst=22degrees

---

highway=track
surface=dirt
surface:variation={1-smooth,2-rough,3-potholed,4-rutted,5-deeply_rutted}
surface:constraints=steep;narrow;side_slope;sand;winch_section;hells_angels


---
highway=track
surface=dirt
surface:mtb={0-5}  (Tag segments, or add "s" for sustained or "x" the worst
case.  5s 5x is thus harder than 1s 5x)
surface:4wd={0-5}
surface:2wd={0-5}
surface:hgv={0-5}
surface:motorbike={0-5}
surface:width=6m
surface:constraints=steep;hello_kitty_gang;puncture vine

---

And I previously posed that a survey of users would help, as long as
multiple answers are allowed:

User: Fred, Date: 2015-01-01 Condition report: went right through in a Yugo
with two flat tires.  Vehicle=2wd
User: Fredy, Date: 2015-01-02 Condition report: impassable via car after
rain, had to turn back at Big Creek, nearly lost it at cliff. Vehicle=4wd
User: Fredyy, Date: 2015-01-05 Condition report: alien encampment at
milepost 23 - nearly ate my vehicle. Vehicle=spaceship
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