Hi,
Am 14.01.2018 11:02 schrieb pbnoxious:
On 2018-01-13 22:06, Matej Lieskovský wrote:
I have a similar problem with the tagging of "Zone 30" and other such
restrictions.
I understand that having the tag on every road makes it easier for
consumers. I think that when a restriction is conceptually an area, it
should be marked as an area because we should be making use of
the fact that we have a geospatial database.
A relationship feels a little like having the disadvantages of both
approaches - you need to keep track of all road segments, but it is
worse for consumers.
I'd like to disagree on the "Zone 30" being an actual area: Here the
appropriate administration does usually not set a full area (with all
houses, parks etc.) as restricted but rather the individual connected
streets, which means that in my mind a relation would be the approach
that resembles the nature of these restrictions the most. But as you
already noticed: the relation does not really make things easier, so I
would rather stick to tagging the individual roads.
The problem with short-term parking zones is that the conditions are
much more complicated than in 30 km/h zones… For example from x pm
to y am parking is free for everyone. From y am to x pm it's only free
for
residents (they get a special sticker for their car), everyone else has
to
pay a fee of z euros and they are only allowed to park for max. 2 hours.
Now tag nearly every street in a district with this information – and
when
you're done the city decides to change the rules for it's short-term
parking zones…
That's why I'd like to use implicit values or relations. I don't want to
use
areas because, as you say, "the appropriate administration does usually
not set a full area (with all houses, parks etc.) as restricted but
rather the
individual connected streets" – and the rules don't apply to all streets
in
these areas.
Cheers,
Stefan.
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