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Check out those nice colourful crossings in . 🏳️‍🌈

Such paintings are becoming quite common and some of them are permanent.

If we want to make an inventory of them for , what tag should be added here? Any idea, anyone?

Ping @amapanda

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@bxl_forever @amapanda There's previous discussion around this at wiki.openstreetmap.org/wiki/Ta with the decision at the time appearing to be to use the artwork tag space.

@bxl_forever @amapanda Oh interesting, I love this question...I did a little digging through TagInfo and the wiki and there's not a ton of precedent but I did find some things!

Firstly, I found a total of three rainbow crosswalks that are already tagged! 🎉 All are basic rainbows, and tagged with "colour=rainbow".

Here's the Overpass Turbo query: overpass-turbo.eu/s/1iNT

And the nodes:
Vernon, BC, Canada: openstreetmap.org/node/5786719
Dallas, TX: openstreetmap.org/node/8544923
Athens, Greece: openstreetmap.org/node/6199089

There's also precedent for this with non-pride-themed crosswalks in Hong Kong, where a specific type of signaled crosswalks are yellow, and they have generally been tagged with either "colour=yellow" or "road_marking:colour=yellow"

As the data nerd I prefer specificity of "road_marking:colour" over "colour" but it doesn't really matter!

@bxl_forever @amapanda That leaves a couple questions: what do we do for the bi flag (since it's not rainbow), and do you want to distinguish between these crosswalks with colored borders, and ones where the whole crosswalk is the flag (e.g. en.wikipedia.org/wiki/Pedestri)? For reference, the one in Vernon above is the only one visible on StreetView, and the stripes are rainbow.

For bi flag: again, as a data nerd, I might indicate colors in the standard multiple-values way with road_marking:colour:border=blue;purple;pink

But this doesn't really capture the pride flag element. You could just use "bi_flag" or something as the color, but that feels a little messy.

Perhaps the most conventional way would be to use the `note` prefix:
note:colour=bi pride flag

note is used for all kinds of things, including a note:colour to specify that a mailbox is painted gold in honor of a gold medalist! But it's inherently less structured, so might be harder to search for in the future.

more musings, lgbtq colors 

@bxl_forever @amapanda

Another idea: you could also take inspiration from the lgbtq tag, which is usually used to tag establishments that are welcoming to or primarily for various lgbtq groups: wiki.openstreetmap.org/wiki/Ke

It might not make sense to tag the crosswalk directly with lgbtq (since it can still be used by everyone!), but I'm just spitballing here, what about something like this??

colour:pride:lgbtq=bi

Unforunately I couldn't find any existing uses of any combination of colour, lgbtq, pride, or flag (other than some colour:flag entries that all had a single color entry), but you could be the first!

more musings, some other reference points 

@bxl_forever @amapanda Other points of reference:
Here's a node that is a giant rainbow flag, which is a `man_made:flagpole` with "flag:type=cultural" and "flag:name=rainbow": openstreetmap.org/node/7166033

The rainbow crosswalks on Castro are actually also tagged, but with "crossing:marking=rainbow": openstreetmap.org/node/6483277

I personally am not a huge fan of that, and might actually change them to colour, since "crossing:marking" it collides with the meaning of marked/unmarked crosswalks - the crosswalks at that intersection are the only four using "rainbow" in all of OSM and the only other value of crossing:marking is 18 instances of "zebra": taginfo.openstreetmap.org/keys

more musings, borders, waffling on colours 

@bxl_forever @amapanda Oh, and as for borders, I found one sign that had color:border, so you could do that too if you want.

Also I'm waffly on colour:pride:lgbtq because it's kinda putting a lot of the "value" on the key side, but I haven't come up with anything else particularly useful either.

There's a system of bouys that uses seamark:topmark:colour_pattern so maybe like...

colour=blue;purple;pink
colour_pattern=bi_flag

...I dunno! Not a lot of precedent I could find.

@amapanda @cincodenada @bxl_forever There are some rainbow crossings where the way is tagged but not the node. Here's a query for both: overpass-turbo.eu/s/1j2s

@bxl_forever @amapanda Okay I got a bit carried away here, but there's some thoughts below. In short, there's some precedent for colour=rainbow for the pride, but bi flag is harder, I didn't really find anything that had a colour pattern marked except for some bouys that have their own system. "colour=blue;purple;pink" with "note:colour=bi pride flag" is maybe the most conventional, but I'd like to find something more specific!

Also worth noting that I'm not super active in tagging myself - I know the tools and reference materials fairly well, but haven't actually added that much data myself!

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