[Tagging] Tags useful for rendering of roads in poor conditions

[Matthijs Melissen]

On 1 January 2014 13:35, Fernando Trebien <fernando.trebien at gmail.com> wrote:
> If nobody disagrees, I'll consider that the tracktype tag is the best choice
> for this decision, and that any value besides grade1 deserves some marking
> meaning it's not in what most people consider "good condition".

Personally, I'm not a fan of using tracktype for this purpose. I don't
like tracktype in general, because the semantics is impossible to
guess without referring to the documentation, and hard to remember.
The numbers also don't have a precise semantics, apart from the
description on the wiki.

Of course, we could use a combination of both approaches, i.e., render
both tracktype 2-5 and surface=unpaved/ground/etc as unpaved roads.

How do commercial maps render unpaved tracks in Brazil (or elsewhere)?
In the Netherlands, dashed outlines are used, hence why that would be
most intuitive to me, but I can imagine different systems are used
across the globe.

There is also a discussion on Carto's Github on this topic:
https://github.com/gravitystorm/openstreetmap-carto/issues/110

-- Matthijs