[Tagging] paved=yes/no

[Richard Welty]

On 7/16/10 12:50 AM, Steve Bennett wrote:
>
> IMHO yes it's useful, because the paved/unpaved distinction is by far
> the most important one for roads. The problem is that surface=* is an
> unbounded list, so renderers potentially have to support surface=dirt,
> gravel, cobblestone, mud, cracked_concrete, rough, and whatever else
> peoples' fertile imaginations come up with.
>
> Having multiple layers of tags (ie, paved=no, surface=dirt) is much
> more re-use friendly.
>    
from a data modeling perspective, though, it's redundant and thus creates
the opportunity for inconsistency and unresolvable error.

richard