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iD/data/presets/fields/camera
bkil ad1b6998a4 data/presets/fields: add surveillance and camera related properties
https://wiki.openstreetmap.org/wiki/Tag:man_made%3Dsurveillance
https://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`
2016-11-23 13:40:41 +01:00
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