I’ve been mapping traffic cameras run by Massachusetts recently, where you can go onto a website that the state runs and see a live feed of a road to see how bad the traffic is there. There are some contradictions in the wiki around whether to use surveillance=webcam.
The “main” tag, man_made=surveillance, doesn’t say in the “tags to use in combination” any suggestions on how to link to where one can see the camera feed, but in “see also” it links to contact:webcam as “For the specification of the URL of a webcam”, where “webcam” is itself also a link.
The contact:webcam tag is documented on the contact:* page, where it says “See also Webcams for more information”.
That “Webcams” page linked to by those last two pages says that one should use surveillance=webcam with them.
But, the surveillance= page itself, calls surveillance=webcam a “possible tagging mistake”, and documents it as mainly about the general area of surveillance (“indoor”, “outdoor”, or “public”, though I don’t know as I fully understand the nuance it’s trying to draw between “outdoor” and “public”) rather than describing whether the camera has a webcam feed or not.
I think that surveillance=webcam must have been an older usage, and that it generally shouldn’t be used anymore, and the “Webcams” page should be updated accordingly. There’s also some usage of camera:features=webcam on some existing traffic cameras in Massachusetts which looks to be from an older import, which I’ve often been leaving alone while updating them but doesn’t look to be documented on the wiki at all.
While I’ve done a couple small tag-documentation wiki updates myself, I wasn’t comfortable just updating all this myself without some discussion and making sure that I understood everything correctly, and I’d rather someone with more experience (and maybe more understanding of the history here) tackle this one. Thanks!