[OSM-dev] Renderer issue: highway=service and service=driveway?

[Pierre Béland]

Martin 

The images in the Highway tag usage wiki page give implicitely instructions to take care of the quality of the road to classify. But it is stated at the beginning of the page, that it is sometimes useful to adapt highway tag usage to the local physical conditions. And this is the case for many countries from the south where road conditions are quite different from what we expect in countries from the north.

While mapping for Mali, we were confronted with mappers not able to classify properly the roads. Too many were identified as tracks. In fact, we have to think differently from countries of the north. For 
example, north of Mali, you have major roads not paved and badly 
damaged at the rainy season. They are still major roads and should be 
classified this way.

The Highway_Tag_Africa page insist on a simple hierarchy to classify the roads.  We make a clear distinction between the hierarchy and the condition of the road. Other tags are used to take care of the surface and road conditions. In later discussions on the HOT list, people suggested that this apply to a majority of countries from the south. In fact, we often have roads badly classified. People working for HOT activations agree in general that these rules are adapted to the context of the countries were we work.


 
Pierre 



________________________________
 De : Martin Koppenhoefer <dieterdreist at gmail.com>
À : Pierre Béland <pierzenh at yahoo.fr> 
Cc : Greg Troxel <gdt at ir.bbn.com>; "dev at openstreetmap.org" <dev at openstreetmap.org> 
Envoyé le : Mercredi 8 janvier 2014 7h30
Objet : Re: [OSM-dev] Renderer issue: highway=service and service=driveway?
 




2014/1/8 Pierre Béland <pierzenh at yahoo.fr>

In this particular case, if there was a hierarchy of roads, it would be less a problem if the rule that I proposed was followed. See https://wiki.openstreetmap.org/wiki/Highway_Tag_Africa

I don't understand this page. Not that I had objections with what I read there, but it is a duplication of what is already set. Why "Africa"? We should have (and do have) a global system to tag and classify roads, bridge=yes and layer=1 are nothing special to Africa, neither is a hierarchical road system. My suggestion is to delete the page or link to the specific pages in to keep the wiki maintainable. Duplicating the same information over and over again has no sense and raises the risk for inconsistencies.


cheers,

Martin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/dev/attachments/20140108/cf319699/attachment-0001.html>