[Tagging] Feature Proposal - RFC - trafficability

[Kytömaa Lauri]

>Anectotal evidence: while driving around Iceland in a Suzuki Jimny (technically a 4x4),
>I would never try to tag that half hour of prose into an OSM key.

Would it not benefit the next driver to know "somebody in a (stock) Jimny got through" - or didn't? Even for those driving something else. The number of roads with "limited get through" is relatively minimal, so it's not even a space issue. Somebody used to say "Tags are cheap".

-- 
Alv