This directory contains location data we use in ID3C for the Seattle Flu Study and code for importing it.

Commands

Snakemake is used to fetch and import files. There are two primary commands:

• download: Fetches geospatial data from the US Census website. This should be run as few times as possible, as the Census temporarily bans repeat downloaders. Similar, it should not be run in parallel. Using Snakemake’s --max-jobs-per-second 0.5 option should help rate-limit downloads and avoid being banned.

• import: Imports locations from geospatial data into ID3C. This expects that a clone of the ID3C source code is a sibling to the clone of this repository. If it’s not, set the ID3C environment variable appropriately.

Data

Files stored in the data/ directory are:

• states.txt contains a mapping of ANSI FIPS codes and USPS abbreviations for all states, as described at https://www.census.gov/geo/reference/ansi_statetables.html. This file was downloaded unmodified from http://www2.census.gov/geo/docs/reference/state.txt.

• 2010_Census_Tract_to_2010_PUMA.txt contains a mapping of Census tracts to PUMAs (which use tracts as their geographical building block), letting us establish tracts under PUMAs in our location catalog hierarchy. This file was downloaded unmodified from https://www2.census.gov/geo/docs/maps-data/data/rel/2010_Census_Tract_to_2010_PUMA.txt.

• SeattleCensusBlocksandNeighborhoodCorrelationFile.xlsx contains a mapping of Census tracts to neighborhood districts within Seattle, letting us establish tracts under neighborhood_district in our location catalog hierarchy. This file was downloaded unmodified from https://www.seattle.gov/Documents/Departments/OPCD/Demographics/GeographicFilesandMaps/SeattleCensusBlocksandNeighborhoodCorrelationFile.xlsx.

• 2010_Census_Tract_Hierarchy.csv contains a mapping of Census tracts to 4 levels hierarchy: neighborhood_district, puma, state, country. This is generated by running snakemake hierarchy, which merges data from 2010_Census_Tract_to_2010_PUMA.txt and SeattleCensusBlocksandNeighborhoodCorrelationFile.xlsx.

• tract/tl_2016_${state_fips_code}_tract.zip contain the 2016-vintage Census tract Shapefiles, as described at https://www.census.gov/geo/maps-data/data/tiger-line.html.

  These are not checked into version control and must be downloaded locally by running snakemake download. Do not download the files in parallel or repeatedly or the Census will likely ban your IP address!

• tract/cb_2016_${state_fips_code}_tract_500k.zip contain the 2016-vintage Census tract cartographic boundary Shapefiles, as described at https://www.census.gov/programs-surveys/geography/technical-documentation/naming-convention/cartographic-boundary-file.html.

  These are also not checked into version control and must be downloaded locally by running snakemake download. Do not download the files in parallel or repeatedly or the Census will likely ban your IP address!

• puma/tl_2016_${state_fips_code}_puma10.zip contain the 2016-vintage PUMA Shapefiles, as described at https://www.census.gov/geo/maps-data/data/tiger-line.html.

  These are also not checked into version control and must be downloaded locally by running snakemake download. Do not download the files in parallel or repeatedly or the Census will likely ban your IP address!

• puma/cb_2016_${state_fips_code}_puma10_500k.zip contain the 2016-vintage PUMA cartographic boundary Shapefiles, as described at https://www.census.gov/programs-surveys/geography/technical-documentation/naming-convention/cartographic-boundary-file.html.

  These are also not checked into version control and must be downloaded locally by running snakemake download. Do not download the files in parallel or repeatedly or the Census will likely ban your IP address!

• cra/seattle_cra.geojson is the GeoJSON of Seattle’s Community Reporting Areas that are downloaded from https://gisdata.seattle.gov/server/rest/services/COS/CommunityReportingAreas/MapServer/0

  These are also not checked into version control and must be downloaded locally by running snakemake download.

• neighborhood_district/seattle_neighborhood_district.geojson is the GeoJSON of Seattle’s neighborhood districts that is generated from combining CRAs within cra/seattle_cra.geojson.

  These are also not checked into version control and must be generated locally by running snakemake cra_to_neighborhood_district. This will also be generated automatically when running snakemake import.