How would one tag multiple security camera’s mounted on a single pole like on the image below? I currently have 4 different camera’s and one utility_pole, but would like to show they are all connected.
I’d love to know the same about street lamps and power poles.
In ID, i create a lamp and the appropriate power pole and the nerge them. Even added the traffic sign attached to the pole. Just be careful if you include the facing, use the
<object>:direction key to indicate which one you are referring to.
The problem with camera’s is the fact that both utility poles and surveillance features make use of the “man_made” key.
highway=street_lamp combine nicely. Combination used over 80 000 times, see highway=street_lamp | Tags | OpenStreetMap Taginfo
I think 5 separate nodes are already the best representation of this situation. Just add
support=pole to each camera. That this refers to the closest pole is something an application can infer – one of the benefits of a spatial database.
I prefer the “one feature, one element” approach. Using the same node only kind of works if…
- there is only one feature of each type (e.g. it would not work with the “4 cameras” example)
- features of different types use different keys
- there are no additional keys such as
operatorwhich refer to only one of the merged objects.
a simple tagging is just capacity=4 (or whichever amount of cameras)
But then I can’t describe the fact that two of the camera’s are domes, two are ALPR’s, etc
you can use the relation type=node for the cameras with an attached role where you put the pole node. It is a proposal and not widely used so far