[talk-au] 4WD only tags

David Bannon dbannon at internode.on.net
Tue Nov 6 03:23:28 GMT 2012


OK Li, you ask and you shall receive !

Here
http://wiki.openstreetmap.org/wiki/User:Davo#Draft_4x4_road_proposal
is my very early draft. You and everyone else is welcome to get stuck
into it, I am not thin skinned !

The OSM proposal page says to to be verbose, no one need tell me to be
verbose ! So if its too long, please indicate what needs removing. And
obviously, error and omissions ....

I am quite unhappy that it really ends up undercutting the 4wd_only tag,
they can coexist but I wonder if they will if this is successful. Its a
shame really, I like 4wd_only and have used it but as I developed my
arguments it became clear to me that we need a finer grain and its
probably easier to add levels to tracktype than it is to 4wd_only. And
it will be easier to get these levels rendered if we go for tracktype.

David 

David




On Mon, 2012-11-05 at 17:28 +1100, Li Xia wrote:
> No probs david, and you'll be getting plenty of input from me, watch
> out ;-)
> 
> 
> A draft would be great. Let me know when it's ready to review.
> 
> 
> Li.
> 
> On 05/11/2012, at 9:10 AM, David Bannon wrote:
> 
> > 
> > Thanks Li, I have not put that proposal up yet, waiting on a
> > response to a related matter. Soon.
> > 
> > And when I do, I'll not be wanting just your vote, it will be your
> > input I will really need !
> > 
> > Maybe I should put a draft up on my personal page while we wait ?
> > 
> > David
> >  
> > 
> > 
> >         
> >         ----- Original Message -----
> >         From:
> >         "Li Xia" <lisxia1982 at gmail.com>
> >         
> >         To:
> >         "David Bannon" <dbannon at internode.on.net>
> >         Cc:
> >         "OSM Australian Talk List" <talk-au at openstreetmap.org>
> >         Sent:
> >         Sun, 4 Nov 2012 20:37:52 +1100
> >         Subject:
> >         Re: 4WD only tags
> >         
> >         
> >         Hi David, although my opinion is that most render's try to
> >         simplify the the stylesheet so the map for ease of
> >         comprehension and would not make use of these additional
> >         attributes, I see your point and agree that it's useful data
> >         to have. Since my company focuses on 4WD maps and
> >         navigation, we will certainly take full advantage of this.
> >         
> >         
> >         BTW, do you have the link to the proposal page? Will go and
> >         cast a vote.
> >         
> >         
> >         Li.
> >         
> >         On 04/11/2012, at 2:41 PM, David Bannon wrote:
> >         
> >                  
> >                 Li, I beg to differ. While I agree that grading of a
> >                 4x4 track is subjective, so is much of the other
> >                 data in the OSM database. Must be that way.
> >                 
> >                 The real issue is how important the data is. As I
> >                 have mentioned, I am concerned that maps are being
> >                 rendered that ignore this data. Routing engines are
> >                 potentially sending people down roads that they, and
> >                 their vehicles are ill suited to. Bad things will
> >                 definitely happen.
> >                 
> >                 The routing people are saying "but these tags don't
> >                 even show on the OSM maps, why should we worry ?". 
> >                 
> >                 And as to subjective, while there will always be
> >                 borderline cases, I don't think it would be too hard
> >                 to divide tracks up into -
> >                 
> >                 * 4x4 recommended - you will might be OK in a
> >                 conventional car or (better still) an SUV but you
> >                 have been warned.
> >                 
> >                 * 4x4 required - you really need a stock 4x4, a real
> >                 one with (eg) low ratio.
> >                 
> >                 * 4x4 extreme - this is for the death or glory boys,
> >                 they need experience and modified vehicles. This is
> >                 a recent addition !
> >                 
> >                 I am pretty sure that if you and I spent a couple of
> >                 weeks having some driving fun, we'd agree on the
> >                 vast majority of the tracks we graded.
> >                 
> >                 David
> >                 
> >                 
> >                 
> >                         
> >                         ----- Original Message -----
> >                         From:
> >                         "Li Xia" <lisxia1982 at gmail.com>
> >                         
> >                         To:
> >                         "David Bannon" <dbannon at internode.on.net>
> >                         Cc:
> >                         "OSM Australian Talk List"
> >                         <talk-au at openstreetmap.org>
> >                         Sent:
> >                         Sun, 4 Nov 2012 13:08:22 +1100
> >                         Subject:
> >                         4WD only tags
> >                         
> >                         
> >                         Hi David, just my 2 cents on 4WD_only tags.
> >                         
> >                         By adding a 4x4 recommended tag will add to
> >                         the complexity because it's kind of
> >                         subjective as to which roads/tracks are
> >                         traversable in a 2WD vehicle, therefor
> >                         adding another option for this key will
> >                         further complicate the issue. 
> >                         
> >                         Li.
> >         
> >         
> 
> 





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