Beware of Choropleth Maps!

Beware of Choropleth Maps!
I was recently experimenting with the new Maptitude data of 2018 Zip Code Business Counts. Free for existing customers, this data lists the total number of businesses by type (NAICS code) for every zip code in the USA. This data represents a huge number of data fields, and it is recommended that users read Caliper’s ...

Data Quality and Public Trust 1

I recently published a series of Maptitude maps of earthquakes. A couple of these mapped recent Oklahoma earthquakes against saltwater disposal wells. Much of the public commentary has blamed these earthquakes on hydraulic fracturing (aka “fracking”) by the oil industry. However the earthquakes do not correlate with the fracking in either time or space. Instead ...

Open Mapping with OpenStreetMaps

Emma wishes to stress that this article is a collaborative effort by the San Francisco Bay Area OpenStreetMap team – Editor. Have you every felt like the people putting together maps just aren’t speaking for you?  Most traditional map companies that produce and provide maps, protect their data with restrictive copyrights.  In order to access ...