[talk-au] 4WD only tags

Li Xia lisxia1982 at gmail.com
Tue Nov 6 12:32:59 GMT 2012


Hi David,

Just scanned your personal page quickly while i had spare time so sorry up front if i missed anything.

A quick comment on the proposed grading. According to your proposal of tagging grades 6-8, what happens when a track is tagged with 4wd_only=yes and grade=6?

Li.


On 06/11/2012, at 2:23 PM, David Bannon wrote:

> 
> 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.
>>> 
>>> 
>> 
>> 
> 
> 




More information about the Talk-au mailing list