In our previous blog post , we introduced the 3-Layer Maps feature and gave some great examples of how it can be used to find and target neighborhoods.
3-Layer Maps gives users the ability to overlay and find the intersection of up to three (3) different data layers. Instead of seeing the mashup of two colors that would represent two data layers, we thought the ability to find how data intersected would be a better way to analyze data. The other great aspect of using 3-Layer Maps is the ability to use any data layer in our library, giving users the option to choose from over 15,000 indicators of data to create unique analysis. We are fortunate that many users have been able to find new and imaginative combination of data layers to intersect.
We wanted to review some of the unique ways subscribers can use 3-Layer Maps.
Sometimes when working with data, you are looking to find places that meet a certain criteria or range of a data layer. 3-Layer Maps can be used to query a data layer to find any location or locations that meets a specific range. For example, do you want to find all the school districts in Oregon that had over 75% of students participating in a Free and Reduce Lunch program? To create this query:
Would you want an example which queries a smaller geography size? How about looking to find tracts that have housing prices within a median home sale range of $150,000 to $275,000 in the Suffolk county Boston area. 3-Layer Maps is a quick way to query and find these tracts. To create this query:
As you can see, 3-Layer Maps can be a very unique tool that allows users to find a list of locations that need to meet just one data indicator.
To read a full guide on all features on PolicyMap, please look at our Primer available here . If you wanted to know more about a feature or topic, send your request to [email protected] subject “Tutorial Topics”.