* Having separate presets for Surveillance and Surveillance Camera means
we can show the camera related fields only if `surveillance:type=camera`
* Generally use Upper Case for labels and keep it short
* if list of values is really fixed, use options strings to make them translateable
* if list of values is not fixed, avoid adding placeholder, iD will fetch from taginfo
* Seems like value "ALPR" is preferred over "alpr"
https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurveillancehttps://wiki.openstreetmap.org/wiki/Proposed_features/Extended_tags_for_Key:Surveillance
These are mandatory tags:
* `surveillance`
* `surveillance:type`
I do not feel that the following are important, they can be selected from
the drop down manually anyway:
* `operator`
* `name`
These tags are well established:
* `camera:type` has 15k users
* `camera:mount` has 13k users
* `surveillance:zone` has 17k users (mostly traffic is noted)
* `camera:direction` has 6k users
These tags are in the proposed status:
* `contact:webcam` usage is only starting
* `height`
People used various tags instead of `contact:webcam` in the past
because of it being a recent tag, and/or a lack of knowledge or being
mislead by the dropdown.
Thus it is difficult to quote an exact number, but by using complex
regexp queries, I could find thousands of usages for webcam links
when properly combining man_made/surveillance/camera and various
(sometimes invalid) keywords in the key or value part of a tag:
* `website`
* `image`
* `uri`, `url`, `link`, `http`, `contact`
* `stream`
* `webcam`
