[Tagging] different access restrictions for different entrances to an area

[Anthony]

On Fri, Oct 28, 2011 at 12:56 PM, Anthony <osm at inbox.org> wrote:
> On Fri, Oct 28, 2011 at 10:53 AM, Bryce Nesbitt <bryce2 at obviously.com> wrote:
>> On 10/26/2011 05:49 AM, Anthony wrote:
>>>
>>> The part about "once you're inside..." is, in my opinion, a red
>>> herring.  Once you're inside, the assumption is that you must have had
>>> permission to be there in order to have gotten there.  This is true of
>>> any access=private road I can think of.
>>
>> There could be multiple exit gates, some that anyone can exit through,
>> some of which require a code or clicker.
>
> The access tag on the road (the way) is separate from the access tag
> on the gate (the node).  The former refers to who can use the road.
> The latter refers to who can open the gate.

Granted, this does raise issues.  Besides the fact that oneway=yes on
a barrier=gate is not well defined, there isn't, to my knowledge, a
way to distinguish "requires code or clicker which is given to
residents" from "only accessible by maintenance personnel (and
possibly emergency services)".  And both seem to me to be a somewhat
common situation.