CoC-Intersections

A repository for codes generated during RA for residential land use regulations and child homelessness project, Dr. Joe LaBriola.

This job meant to create intersection between CoC and Census shapefiles [Counties/Places/Subdivisions] with new attribute that indicate the % that each polygon occupy the original county/place/subdivision.

Glossaries

CoC: Continuum of Care (regions where homelessness is evaluated by HUD and fundings for health care are delegated )

Census Places: geographies that include Incorporated Places and Census Designated Places (CDPs).

Census Subdivisions: minor civil divisions (MCDs) and census county divisions (CCDs)

Data Sources

• CoC Data Source:

  by HUD (Housing and Urbanization Department of USA)

• Census Counties/Places/Subdivisions

  TIGER Database

How to Run

1. Use codes in .\BulkDownload to bulk download all the data from the related sites, the downloaded data would be located in .\Data in each folder

2. Put the data into .\shapefiles folder in the following structure:

   - shapefiles
   	- Census places
   	- CoC_Merged
   	- Contiuumns of Care
   	- counties
   	- county subdivisions
   

   This would be the input data for the later process

3. Run codes in CountyProcess and Merge to process the data

4. Run all codes in Intersection to intersection the layers. The output would be in the .\Output folder

   Structure:

   - Intersection
       - Output
           - 2007
               - CoC@Counties
                   - shp
                       - CoC_Counties_AL_07.shp
                       - CoC_Counties_AK_07.shp
                       - ...
                   - csv
                       - CoC_Counties_AL_07.csv
                       - CoC_Counties_AK_07.csv
                       - ...
               - CoC@Places
               	- shp
               		- CoC_Places_AL_07_shp
               		- CoC_Places_AK_07.shp
               		- ...
                   - csv
                   	- CoC_Places_AL_07.csv
                       - CoC_Places_AK_07.csv
                       - ...
               - CoC@Subdivisions
               	- shp
               		- CoC_Subdivisions_AL_07_shp
               		- CoC_Subdivisions_AK_07.shp
               		- ...
                   - csv
                   	- CoC_Subdivisions_AL_07.csv
                       - CoC_Subdivisions_AK_07.csv
                       - ...
           - 2008
           	- ...
           - ...
   

Sample Output Project on ArcGIS

Sample input and output in 2007 for Connecticut