[OSM-talk] access=destination valid only in one direction

[Marcus Wolschon]

On Fri, Jul 10, 2009 at 5:03 PM, Tobias Knerr<osm at tobias-knerr.de> wrote:
> Stanislav Brabec wrote:
>> Is there a way how to map a street with access=destination valid just
>> only for one direction? In the reverse direction it is a standard drive
>> through street.
>
> Using my proposal
> http://wiki.openstreetmap.org/wiki/Proposed_features/Extended_conditions_for_access_tags
> it would be
>
> access[forward] = destination
>
> (or access:forward = destination, depending on what syntax people like
> better)
>
> Of course that's way direction dependent.

and it does not work NOW.
Once it MAY be accepted in this OR a modified form (sometime in the future),
then used in a significant number of places (much, much later),
then the first programs may get a feature-request to implement support for it
(where the normal access=destinationis already a bit tricky and not all
programs have internal datastructures that allow such a construct at all) and
quite a while later some developer may find the time to actually implement
and test it. Then people will start filing bugs as it does not work
perfectly the first time and later these bugs may be fixed.
THEN it will be supported in SOME programs while others will still ignore it
completely.

Whereas drawing 2 ways works now. These 2 ways may even share
exactly the same nodes and if they share the same nodes even turning
around at any of these nodes will work.

Marcus