[Tagging] Mapping cave tunnels passable by human

[Richard Z.]

On Thu, Aug 14, 2014 at 12:31:28PM +0200, Martin Vonwald wrote:
> 2014-08-14 12:25 GMT+02:00 André Pirard <A.Pirard.Papou at gmail.com>:
> 
> >  On 2014-08-14 11:08, Janko Mihelić wrote :
> >
> >  Well first, tunnel=yes is obviously wrong. We need to replace this with
> > cave=yes. Other than that, I have no problems with this. If a cave has two
> > cave entrances, then information that they are connected by footpaths is
> > valuable information.
> >
> > Obviously?  Regarding paths and waterways, especially ones fitted up for
> > tourism, I wonder...
> >
> 
> Maybe not completely obvious, but I would agree with Janko. In my opinion,
> a "tunnel" is man-made, while a "cave" is not.

whether or not man-made is not the biggest problem.

The big problem with tunnel=yes or tunnel=cave is that they only would ever 
get rendered if they were also tagged as a highway or similar.
This is a big disadvantage because most caves don't have even paths.

Richard