[Tagging] Proposed rewrite Of highway=track wiki page
Mateusz Konieczny
matkoniecz at tutanota.com
Tue Mar 9 08:53:54 UTC 2021
Mar 9, 2021, 03:23 by bert.araali.afritastic at gmail.com:
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> On 09/03/2021 03:43, Kevin Kenny wrote:
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>> On Mon, Mar 8, 2021 at 6:10 PM Bert -Araali- Van Opstal <>> bert.araali.afritastic at gmail.com>> > wrote:
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>>> Why do we need unclassified ? Look at it from the point of view from an ant, walking on the tree. The ant only knows that it walks on a road, it can't see that far to see if that road is a minor branch or a major branch, or even a shallow trunk. It does however know that it is something that belongs to one of these, because sap runs through it. It's like a mapper in the field without a satellite imagery. The ant can only find out what the road exactly is, by walking all the way from one end to the other, or by asking other ants who already acquired that knowledge. In case they are not there, it should call it unclassified, to indicate it needs more information to assign a final judgement.
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>> That's not how it's used in OSM. What you described is tagged in OSM as `highway=road`. `highway=unclassified`, misleadingly, is a formal read classification in the UK - the road is classified as an 'unclassified road'. What 'unclassified' means is that the road has a lower importance than 'tertiary', but is not 'residential', either because it is more important than the residential roads or because it serves another purpose such as accessing an industrial district. (If we were to start from a non-UK-centric perspective, we'd have probably chosen a tag like 'quaternary' to describe this in a more neutral fashion.)
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> Maybe that's the most common way how it is interpreted in the West, having it's roots in the UK. In Africa, it's not. We generally have very few or no highway=road. It also isn't considered a valid classification in Highway Tag Africa guidelines.
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Which ones?
Looking at https://wiki.openstreetmap.org/wiki/Highway_Tag_Africa
it describes highway=unclassified as
"Minor collector roads that allow travel and commerce from paths and residential
roads to and between settlements. While generally not residential, there can be houses along the road."
what matches https://wiki.openstreetmap.org/wiki/Tag:highway%3Dunclassified
It also has "if you're in doubt of what tag to use, use highway=road"
"In case they are not there, it should call it unclassified" is mismatching general guidelines,
general usage and Highway Tag Africa guidelines.
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