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

[malenki]

Am Thu, 2 Jan 2014 16:57:35 +0000
schrieb Matthijs Melissen <info at matthijsmelissen.nl>:

> One thing I can think of is to introduce a new tag paved=yes

I disagree.
This is redundancy.
I would recommend a list where values of surface= would be collected and
either be classified as "unpaved" or "paved" if the data consuming
program itself is unable to do so.

> use this to decide rendering (and perhaps routing). It would mean a
> lot of extra tagging,

I see people coming up with a bot adding paved=yes to all
surface=asphalt, concrete, cobblestone and so on...

> Alternatively, we could stimulate users to restrict the surface tag to
> paved and unpaved, by rendering only surface=unpaved and no other
> values. 

Do you propose to change all values of surface if the aren't either
paved or unpaved?

> Another question is whether to use paved or unpaved as default.

I'd answer it with: no default

> Probably, paved is the correct tag for most of the world, as in a
> large part of the world, most roads are paved.

I'd assume the most roads as unpaved, thinking of Australia, India,
Africa, South America, smaller roads in North America as someone wrote
lately and even in Europe there are some countries with a lot of
unpaved roads.