[talk-au] surface=unsealed in 4wd/dirt road tagging

David Bannon dbannon at internode.on.net
Tue Jul 2 10:42:19 UTC 2013

On 02/07/13 17:58, Steve Bennett wrote:
> ....  If people want to be specific with surface=dirt,
> surface=gravel then that would be different.
Just a thought here, we'd really like "the renderers" to show 
unpaved/unsealed/whatever roads differently from sealed ones. In 
particular, the mapnik rendered slippery map on the OSM website....

They show little interest I must admit but will show even less if we 
point to a whole range of surface= tags that need that treatment. So 
might be better agreeing on one term rather than being very specific and 
saying 'dirt', 'gravel'  etc. As I have mentioned before, this is a road 
safety issue as much as a presentation one.

I like the idea of 'unpaved', it gets heaps of use internationally and I 
should update the mapnik request accordingly...


> So - yes, go ahead. :)
> Steve
> On Sat, Jun 29, 2013 at 11:18 AM, Ian Sergeant <inas66+osm at gmail.com> wrote:
>> Hi,
>> I know we had some discussion over 4wd/dirt road tagging.
>> This ended up in the wiki as a recommendation to use
>> surface=unsealed
>> http://taginfo.openstreetmap.org/tags/surface=unsealed
>> I really can't see a significant reason here not to stick with
>> surface=unpaved
>> http://taginfo.openstreetmap.org/tags/surface=unpaved
>> When it is so much more likely to used, and therefore so much more likely to
>> be rendered, navigated, etc.  There are the other surface=* tags that can be
>> used if more specific information is available, but surface=unsealed is
>> obscure to no benefit IMO.
>> If there are no objections, I'll update the wiki.
>> Thanks,
>> Ian.
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