[OSM-dev] Implied Tags

[Christian Vetter]

Hi,

On Wed, Apr 13, 2011 at 10:44 AM, Erik Johansson <emj at kth.se> wrote:
> Can someone tell me why bollards  would imply access=no, and bike=yes
> if access=no means you can not access that place, perhaps it should be
> car=no?

If you look at the access tags, they actually form an access tree.
Tags can be overwritten by their children, e.g. access=no,vehicle=yes
means that nobody can access except vehicles and subclasses of
vehicles.

> That said the wiki is best effort documentation, in the same sense
> that the understanding  of tags in OSM is best effort. E.g. I still
> consider highway=cycleway to imply foot=yes, which I guess is wrong.

I think I will start out with the implications noted in the wiki and
expand upon them.

Regards,

Christian