Offering pixelHumain's Communecter to Shareable for their Map Jam needs | Evaluating open data of cities in the United States of America


(Jon Richter) #1

Dear @TomShareable, in continuation of our support for your efforts I am taking over for the moment, as Josef seems to be regenerating meanwhile.

During our winter retreat we were in conversation with pixelHumain, friends from Encommuns, to consider adding american cities to their platform communecter. This could help creating a versatile mapping environment, connecting social mappings with events and places, while keeping the Commons spirit and supporting Open Data in various formats.

Please find below an intermediary space to conclude our explorations about how to provide different approaches than uMap to your jam sessions.


Data Sources

Communecter uses cities as main narrative for entering the platform. One then gets to the different views from above, but right now not all cities of all countries in the world are loaded into the database.

Therefore we need a reliable list of cities within the administrative areas of the United States of America. We have several sources in

data.gov

It seems not obvious how to retrieve such list with http://catalog.data.gov/dataset?q=Cities at first sight.

Overpass Turbo

But thanks to an example query from @species and with borrowing ideas from Get city nodes within a country using Overpass API we get to

[out:json][timeout:250];
area[name="United States of America"];(node[place="city"](area););out;
out body;
>;
out skel qt;

which should only be limited by its timeout now.

Mapzen

Another perspective could maybe also be the Who’s on first? Spelunker?

GeoNames

http://www.geonames.org/advanced-search.html?country=US&featureClass=P

OpenAddresses

Anybody feels tempted to query OpenAddresses for that?

Wikidata

I wonder how @maxlath or @toka would query wikidata for this.

As Communecter uses the post code to identify one’s city of interest during sign up, beware of using them for ordering spatial data, says your local geohipster.


Shareable Map Jam | April 2016
#2

probably like so


(Jon Richter) #3

@oceatoon Do you have any results of your data set benchmark to be shared with us?


(oceatoon) #4

@oceatoon Do you have
any results of your data set benchmark to be shared with us?

we are focusing on importing all encommuns stuff, as well as Imagination
for the people
our importer magician will do the benchmarking
but as an example anything from REunion Island doesn’t exist

https://twitter.com/opendata/status/702516761208479744

cool will check it out

Dear @TomShareable,
in continuation of our support for your efforts I am taking over for the moment, as Josef seems to be regenerating
CHEST interim report
meanwhile.

During our winter retreat
2016 02 08—21 | Hackathon | Witzenhausen
we were in conversation with pixelHumain, friends from Encommuns
Collaboration with Encommuns
to consider adding american cities to their platform communecter
https://www.communecter.org/. This could help creating a versatile
mapping environment, connecting social mappings with events and places,
while keeping the Commons spirit and supporting Open Data in various
formats.

Hi Tom would be glad to show you the system if interested


(Jon Richter) #5

Yes, you said you would be assessing the different data sets and retrieval approaches from above to check for consistency of cities in the United States of America. But I suppose @TomShareable already has an opinion about which kind of municipalities qualify for a Map Jam?


(oceatoon) #6

our benchmarking is global on a whole set of import Europe and future US
data sets
it’s fairly simple , when importing datasets, we’ll have three column of
reports
one for each Geocoder Nominatim, google , MapZen and any other
so at any time we can see how they respond , in different contexts


(Jon Richter) #7

I just found https://github.com/datasets/world-cities, which is a data package of ‘major’ cities (above 15,000 inhabitants) in Geonames.