[OSM-Talk-ZA] South African Tagging Guidelines?

Thu Jan 28 05:44:58 GMT 2010

Hi Glen

These are just for a lack of better examples.
Example 1: Yes, west of the river.
Example 2: Starts in Stilbaai and ends north of Stilbaai. It's all the way
just next to the Goukou river. I uploaded the GPX tracks but have not drawn
it in with JOSM yet.
The max_speed was just my example of describing the condition in this email
but it's not the official recommended road speeds.

Regards
Rickus
  -----Original Message-----
  From: talk-za-bounces at openstreetmap.org
[mailto:talk-za-bounces at openstreetmap.org]On Behalf Of Glen Wilson
  Sent: Thursday, January 28, 2010 12:10 AM
  To: talk-za at openstreetmap.org
  Subject: Re: [OSM-Talk-ZA] South African Tagging Guidelines?

  The wiki entry on tracktype seems to suggest that it's used almost
exclusively with highway=track.  I'm not sure it's "correct" to use it with
other highway types.

  I'd tag Example 1 as highway=tertiary; surface=dirt; max_speed=80, because
it's a little more important than the "lowest form of the interconnecting
grid network".

  If example 2 is what I think it is[1] then unclassified should be fine
because it starts somewhere and ends nowhere.

  Regards -- Glen Wilson
  [1] The road from Riversdale to the Vermaaklikheid road, west of the
river?

  On 2010/01/28 12:00 AM, Rickus Viljoen wrote:
    Nic, you are the routing expert.

    So are the following examples more correct (keeping future SA routing in
mind):

    Example 1: Stilbaai dirt road to Vermaaklikheid. Great compacted 80km/h
dirt.
    highway=unclassified, surface=dirt, tracktype=grade1,2

    Example 2: Stilbaai river road. Slow bumpy 40km/h road.
    highway=unclassified, surface=dirt, tracktype=grade3

    Example 3: Farm dirt road.
    highway=track, surface=dirt, tracktype=grade3,4,5

    Regards,
    Rickus
      -----Original Message-----
      From: Nic Roets [mailto:nroets at gmail.com]
      Sent: Wednesday, January 27, 2010 4:42 PM
      To: Rickus Viljoen
      Cc: talk-za at openstreetmap.org
      Subject: Re: [OSM-Talk-ZA] South African Tagging Guidelines?

      My impression is that highway=track is used in Europe to indicate
agricultural use. So it is very rarely used by the public.

      The dirt roads here are for routing and legal purposes much closer to
highway=residential or highway=unclassified: Wide enough so that vehicles
can pass easily, no access restrictions. We would like to pave them, but the
capital isn't available and the rainfall does not necessitate it. In fact I
wanted to go back and change many of 'tracks' I created in '07 and '08 to
'residential', but I just haven't found the time.

      Regards,
      Nic

      On Wed, Jan 27, 2010 at 7:43 PM, Rickus Viljoen <rickus at ewcop.com>
wrote:

        Thanks for the replies.

        Heinz has a point in his email. That some dirt roads in Africa are
to be classified maybe as 'primary/secondary' because they are used as main
routes. I guess this is still an open issue if it applies to SA and needs
more discussion. (Maybe a dirt road, grade 1 could be secondary. I'm not
sure).

        For now I've combined the input in the list below. Please correct me
if wrong.

        SA Road Type: Normal Regular Roads
        Tag as: highway=unclassified
        Description: Normal regular roads that aren't residential.

        SA Road Type: Dirt Roads
        Tag As: highway=track, surface=dirt, tracktype=grade1,2,3,4,5
        Description: South-African dirt roads. Grade according to the 'Map
Features' guidelines.

        Other Notes:
        Highway=road: A road of unknown classification. This is intended as
a temporary tag to mark a road until it has been properly surveyed. Once it
has been surveyed, the classification should be updated to the appropriate
value. This should only be used when you don't know what type of road it is.

        I can update the 'SA Tagging guidelines page' with this?

        Thanks,
        Rickus
          -----Original Message-----
          From: Brendan Barrett [mailto:brendanbarrett at live.co.za]
          Sent: Wednesday, January 27, 2010 2:11 AM
          To: Rickus Viljoen; talk-za at openstreetmap.org
          Subject: Re: [OSM-Talk-ZA] South African Tagging Guidelines?

          Hi Rickus

          As far as I know, you are using "unclassified" correctly. As for
the dirt road, I am used to using highway=track. You can use tracktype as a
second tag on the feature marked as highway=track to denote how good the
surface is (http://wiki.openstreetmap.org/wiki/Tag:highway%3Dtrack).

          highway=road is meant as a temporary tag when you don't know how
to classify the road. Another mapper can then come along and tag it
correctly.

          The Map Features page has these definitions
(http://wiki.openstreetmap.org/wiki/Map_Features#Highway). I think the South
African Tagging Guidelines page helps for things like M / R / N
classifications, but we still need to use the main page for ones that aren't
South African specific.

          Hope this helps. Someone else please correct me if I am wrong with
any of this.

          Regards,
          Brendan Barrett

          From: Rickus Viljoen
          Sent: Wednesday, January 27, 2010 2:05 AM
          To: talk-za at openstreetmap.org
          Subject: [OSM-Talk-ZA] South African Tagging Guidelines?

          Hi

          I've been looking at the 'SA Tagging Guidelines' page.
          I'm wondering how I should tag 'dirt roads'.
          I have seen others in SA have used any of the following...
          - highway=tertiary or
          - tracktype=grade2
          - highway=road
          - highway=unclassified

          Also how should I tag a 'paved/tarred' road that is not an R or M
road but that is also not a 'residential' road. Currently I use
'unclassified'.
          Any comments please and maybe we can update the SA Tagging
Guidelines page with a bit more detail.
          http://wiki.openstreetmap.org/wiki/South_African_Tagging_Guideline
s

          Keep up the mapping!
          Rickus Viljoen

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