Proposed features/supervised

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Status: Draft (under way)
Proposed by: Head
Tagging: supervised=yes/no/interval
Applies to: *
Definition: Indicates whether there is a person who supervises the place
Rendered as: depends on the kind of feature
Drafted on: 2009-10-17
RFC start: 2009-10-18
Vote start: *
Vote end: *
Public-images-osm logo.svg supervised
Lollipop lady.jpg
Indicates whether there is a person who supervises the place. Edit this description in the wiki page. Edit this description in the data item.
Group: Properties
Used on these elements
may be used on nodesmay be used on waysmay be used on areasshould not be used on relations
Useful combination
Status: de facto


The property supervised=yes indicates that there is a person who supervises the place. This means that the person observes the place, makes sure that everyone obeys to the rules, that nobody is harmed, and that nothing is damaged. The supervised tag has been documented on the page crossing=* since July 2008, and it is widely used for so-called Lollipop crossings. It would be useful for a much wider range of places.


In general, a supervised place is safer or more enjoyable than a similar, non-supervised place.


Possible values are yes, no, or a timespan in the opening_hours=* format. If the place has opening_hours and is set supervised=yes, it is implied that it is supervised while it is open.


The supervised tag should only be used if the supervisor is there in person, so that he or she may react immediately when needed. If supervision is done via surveillance cameras, use the man_made=surveillance tag. Furthermore, do not use the supervised tag when it is obvious that the place is supervised. For example, all kindergardens are supervised, so supervised=yes is implied. This tag should also only be used where the supervision can be considered as a service to visitors of the place: a scrap yard that is guarded at night doesn't need tagging because this information would only be relevant for thieves.


A supervised crossing for school-age children (en: Lollipop crossing, de: Schülerlotsen / Verkehrshelfer, nl: Klaar-over):

A junction where a police officer (de: Verkehrsposten) stands in the middle of the junction to direct traffic. Sometimes there is a small platform on which the officer can stand. Such supervised junctions can no longer be found in industrialized countries (traffic lights are used instead), but they are still common in countries such as Bhutan (image) or North Korea (article with videos):

A level crossing where a gatekeeper/signalman (de: Bahnwärter, Schrankenwärter) manually closes the gate when a train is approaching (such old-fashioned level crossings still exist in many countries):

A parking lot which is guarded during its entire opening hours (not to collect parking fees, but to prevent car theft and vandalism):

A swimming pool that is not supervised by a lifeguard:

A beach that is open during daytime, but only supervised during certain hours (a leisure=beach_resort could be tagged similarly; when the lifeguard has a building, see Proposed features/Emergency services):

A public toilet that is always staffed with a cleaner (these toilets are usually tidier, but the cleaner might expect a tip):

Applies to

Nodes (e.g. crossings, toilets) and areas (e.g. beaches, parking lots). There may also be uses for ways, but I can't make up any examples.


This depends on the kind of feature. For most features, the supervision status is meta information that needn't be rendered on the map. For lollipop crossings, rendering a person holding a lollipop sign might be useful.

See also


Please add comments or suggestions to this proposal at the Talk page.