[Tagging] Clarification unclassified vs residential

Fernando Trebien fernando.trebien at gmail.com
Fri Mar 1 12:03:26 UTC 2019


On Thu, Feb 28, 2019 at 9:56 AM Martin Koppenhoefer
<dieterdreist at gmail.com> wrote:
> Am Do., 28. Feb. 2019 um 13:26 Uhr schrieb Fernando Trebien <fernando.trebien at gmail.com>:
>> Currently, it actually would because emergency=* is nested under
>> motor_vehicle=* in the access tags hierarchy. [1] So to express that
>> motor vehicles (cars, trucks, etc.) are forbidden but emergency
>> vehicles are not, both motor_vehicle=no + emergency=yes are required.
>
> it depends on the specific implementation. Yes, there is an "emergency" key, but it is not clear how people will interpret the absence of such tag. If you assume that emergency vehicles in emergency service are not bound by legal restrictions in general (not too far fetched IMHO), it implies emergency is always "yes" unless tagged otherwise.

So access=no without emergency=yes may imply emergency=yes? That's not
written anywhere in the main articles on the topic [1][2]. If that's
the general interpretation, then emergency=* should not be nested
under acccess=*.

[1] https://wiki.openstreetmap.org/wiki/Key:access
[2] https://wiki.openstreetmap.org/wiki/OSM_tags_for_routing/Access-Restrictions

-- 
Fernando Trebien



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