Generate better coverage data

[migurski]

Companies like Google and HERE produce coverage summaries of their data:

• https://developers.google.com/maps/coverage
• https://developer.here.com/rest-apis/documentation/geocoder/topics/coverage-geocoder.html

We’ve got a visual version of this in the maps at https://results.openaddresses.io, but a tabular form might be useful as well.

[iandees]

Mapbox: https://www.mapbox.com/geocoding/#coverage

[migurski]

That Mapbox map is in dire need of visual design help.

[migurski]

Making some progress on this in openaddresses/population repo, starting with per-country area and population estimates and writing to a useful database that can drive a coverage page:

[iandees]

I <3 those colors.

[nvkelso]

Cool! Reminds me about those funky Natural Earth concordances I need to fix.

On Mar 8, 2017, at 16:58, Ian Dees notifications@github.com wrote:

I <3 those colors.

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[migurski]

I have a temporary representation of this data here: http://ec2-54-89-13-7.compute-1.amazonaws.com

Feedback at this stage would be really helpful!

[nvkelso]

Nice! I like the addition of the population map at the bottom.

I continue to think the break from substantial and minimal should be somewhere in the 10% to 20% range.

On Tue, Mar 14, 2017 at 12:56 PM, Michal Migurski notifications@github.com wrote:

I have a temporary representation of this data here: http://ec2-54-89-13-7.compute-1.amazonaws.com

Feedback at this stage would be really helpful!

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[nvkelso]

The text in the intro helps explain the 3 parts of the table, but if you breeze over that it's not clear why the table parts are grouped that way. Might also add a column for the overall coverage grade (full, substantial, minimal)? This would allow future sorting of the table, too.

[migurski]

Good ideas, I incorporated them all.

[iandees]

This looks great, thanks for putting it together! The columns are a tiny bit confusing, though. maybe the "population in land area" column should be "population covered" or "estimated population covered"?

[migurski]

Okay, made that change. I experimented with splitting up the columns a bit, curious if this makes sense.

Old:

New:

[nvkelso]

Is there special HTML formatting that would allow these to copy into OpenOffice as a table? Right now I'd need to do processing to get it into a full table (as Land Area Covered, Population Covered, and Address Density all have sub cells that copy into 1 generic OpenOffice cell):

So instead A-G it'd be 3 more for A-J.

[migurski]

I was thinking of this with the "new" variant from the comment above, with separate columns for the parenthesized parts. I'll push it live; tell me if it works for you.

[migurski]

Results when pasting into Numbers:

[nvkelso]

YES!

[migurski]

✨ Spreadsheets! ✨

[nvkelso]

Now add a save as DBF option ;) JK!

On Mar 14, 2017, at 15:22, Michal Migurski notifications@github.com wrote:

✨ Spreadsheets! ✨

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[nvkelso]

The paragraphs at the top serve as legend, but are missing two items:

• Coverage Group – move this out of the intro text.
• Population Coverage – which summarize and link people to an new anchor tag below the table for full info.

[migurski]

After some good brainstorming with @sbma44 and Michael Steffen, I’m going to dumb down the address density number a little. It’s currently the average of densities (with standard deviation) and I’m going to simplify it to the average density so the arithmetic is easier to understand.

[michaelsteffen]

@migurski you can call me by my github name, it's OK :).

👋 @iandees @nvkelso

[NelsonMinar]

Loving this work. My requests:

1. Can't wait for a map view like the preview you teased up above! Maybe color by coverage group?
2. To facilitate scanning, please right align all numbers. (Or align on the decimal point, but a trailing zero is probably easier.)
3. Also for scanning, don't mix thousands and millions. Ie instead of 563K and 17M people make it 563k and 17000k. (or 0.56M and 17.00M)
4. The Palantino font's use of descending numerals and inconsistent numeral heights makes this really hard to read. Maybe this is worse in Windows, see screenshot attached

[migurski]

Good suggestions, @NelsonMinar. I’ve applied them all except the font thing. Can you tell what font is actually being rendered on Windows? It’s not Palatino, which looks like this for me:

[NelsonMinar]

You're right, I think it's actually Georgia that my sample is showing (second option in the CSS for body). My Windows 10 system doesn't have a font named "Palatino", but it does have "Palatino Linotype" which seems to work in the CSS and looks OK.

[migurski]

This is real now: http://results.openaddresses.io/coverage

[nvkelso]

Congrats, great new feature :)

On Wed, Mar 22, 2017 at 2:43 PM, Michal Migurski notifications@github.com wrote:

This is real now: http://results.openaddresses.io/coverage

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[iandees]

👏 This is really excellent. I tweeted about it here: https://twitter.com/openaddr/status/844666719209750528

Can we add a map like the green/red one on https://results.openaddresses.io/ but coloring countries based on population coverage percentage?

[migurski]

Yes, absolutely! I probably shouldn't use the same colors for this.

[jharpster]

These coverage metrics are the best thing ever. Also wondering if raw counts of addresses by country are maintained some place or if that would be useful to anyone besides me.

[migurski]

That sounds pretty useful. Maybe a thing to put on a linked page for each country, as @michaelsteffen has suggested.