[OSM-talk] Advanced highway tagging

[Andrew MacKinnon]

What I feel would be the easiest thing to do for mappers would be to
create a new tag for the administrative classification (let's call it
designation). Then we could simply use the highway tag to make a
general classification of the road based on its appearance alone,
perhaps based on one of the "Tagging samples" guides linked to from
<http://wiki.openstreetmap.org/index.php/Key:highway>. This would be
slightly subjective, but if we made the tagging samples fairly
detailed it should be reasonably objective. We could always add more
information (# of lanes, surface, speed limit, etc.) if we want to
make more detailed maps.