How to tag a permanent (bicycle) traffic counting station

Hi,

I would like to map permanent traffic counting stations (via inductive loop traffic detector), but could not find any tags / proposals in the OSM wiki.
These counting stations are observable and the rough locations can be found on a website (in the case of Vienna):
https://www.wien.gv.at/stadtentwicklung/projekte/verkehrsplanung/radwege/erhebungen/dauerzaehlung/zaehlstellen.html

Also similar, but even more visible are traffic counting stations with a display:
http://www.fahrradwien.at/blog/2014/11/05/zaehlstelle-operngasse-eine-million-radfahrende-im-jahr-2014/

Does anybody know of a tag/proposal?
I would be happy if you could point me in the right direction (before maybe thinking about creating a proposal).

Thanks,
Markus

Hallo, ich nehme mal an, dass du Deutsch kannst und verweise auf folgende Disk: https://lists.openstreetmap.org/pipermail/talk-de/2015-May/111279.html

ein Vorschlag war:
man_made=monitoring_station
monitoring:bicycle=yes
http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dmonitoring_station

“monitoring:bicycle” seems to be used a bit:

http://taginfo.openstreetmap.org/keys/monitoring%3Abicycle

Nice, thank you very much! The result is already in the map: http://overpass-turbo.eu/s/afH

Best,
Markus