more details for man_made=surveillance & surveillance:type=camera

[chrt223]

Follow-up #2816

General

Affected tag(s) to be modified/added: surveillance:*
Question asked:

• surveillance:* What kind of surveillance is this?
• camera:type Type of camera, e.g. fixed, panning, dome, ALPR
• camera:direction The orientation of the camera

Possibly (if not overwhelming):

• camera:mount How or where is the camera mounted/fixed?
• surveillance:zone Sometimes ambiguous (town/parking/traffic/shop/bank/building/entrance/nesting_site)
• https://wiki.openstreetmap.org/wiki/Key:ele (but many confusion possible with sea-level vs ground-level)

Checklist

Checklist for quest suggestions (see guidelines):

• 🚧 To be added tag is established and has a useful purpose ¹
• 🤔 Any answer the user can give must have an equivalent tagging (Quest should not reappear to other users when solved by one)
• 🐿️ Easily answerable by any pedestrian from the outside but a survey is necessary
• 💤 Not an overwhelming percentage of quests have the same answer (No spam)
• 🕓 Applies to a reasonable number of map data (Worth the effort)

¹ Useful: It probably is: There are dozen of projects on this specific topic with new ones appearing every year. Here to name a fewrelated to privacy or traffic/circulation:

• https://sunders.uber.space
• https://deflock.me/
• https://cctv.masspirates.org/
• http://osmcamera.dihe.de/
• https://www.banfacialrecognition.com/map/
• https://otc.armchairresearch.org/

[matkoniecz]

see #87 (comment) and #87 (comment) for what was discussed in past

[chrt223]

How we can skip/tag cameras in locations inaccessible to general public? [...] collecting data about surveillance for private property [...]

I agree with others in that it's not a blocker because the description of Key:surveillance is quite clear about objects:

• indoor Surveillance inside enclosed buildings, for example inside a museum, a shop, a bank, or at a fuel station

=> The vast majority of these are going to be either public places/services or shops/services opened to the public. OSM guidelines regarding private property apply and the the tag purpose and examples given are clear.

• outdoor Surveillance of outdoor areas or outside enclosed buildings, for example on courtyards, at fuel stations, on parking areas, at entrances.

=> It's not insane to assume these outdoor camera were added because they record public activities in the first place or are fixed in a place of public passage.

• public Surveillance in publicly accessible areas, for example on public places, generally controlled or delegated by some governmental organization, like on marketplaces, in pedestrian zones or at corners (often mounted on utility poles or masts).

=> Public by definition

#87 (comment) rightfully reminded that some quests already request information about items existing on private property what sounds generally acceptable as long as it's stay an exception (if a surveyor has no judgement, he shall not use the app in the first place)

About data collection, it's pretty clear that it's not about private property but about public space surveillance. How many indoor camera are exclusively recording private indoor movements (except, maybe, some of surveillance:zone=building)? If such a case happened, then these node must be tagged with access=private

So, because:

• We should assume general OSM guidelines for private property applied when adding nodes
• It's unlikely to find truly private camera given the documentation/usage examples of the tags
• In the event of cameras record exclusively private domain, these should have been tagged access=private in the first place
• Even GoogleStreetView provide access to many public cameras (private owners recording street)

I suggest to filter out:
( access=private || (surveillance=indoor || surveillance=<unset>) && surveillance:zone=building) )

@westnordost also mentioned:

"here is a camera, is it inside or outside?" because the user might then not even know which camera is meant - if it is not even known where the camera is supposed to be

This is a theoretically valid concern for indoor camera or if an indoor/outdoor camera was placed nearby a public one but it's an edge-case:

Are indoor/outdoor not accessible nor visible from public places? As commented in the Discussion page, cameras are placed where they can broadly see/record what generally includes public space if possible.

Regarding the case of a surveillance:type=camera without a surveillance tags, it's definitely a confusing/incomplete node (which are the ones StreetComplete is aimed to... complete with the help of surveyors' judgement)
(And if humans are needed to fix the data, it's safe to assume they have the basic understanding of what is public/private/visible/invisible and identifying the placement of a couple of cameras :))