DCActionforChildren / dcaction

Free and open-source mapping tools and data workflow for visualizing neighborhood data
http://datatools.dcactionforchildren.org/
MIT License
45 stars 66 forks source link

Revise Vacant Data #158

Open joshdelarosa1 opened 9 years ago

joshdelarosa1 commented 9 years ago

Currently, vacancy property (residential and commercial) data comes from the DC Department of Consumer and Regulatory Affairs. However, the data is labor intensive to manipulate.

To improve efficiency, let’s use the ACS estimates of vacant households.

Code Change -

Add- 'Vacant_housing_units_denom' => 'B25002_001E', 'Vacant_housing_units_numer' => 'B25002_003E',

Methodology Documentation Change-

Revise-

Methodology Page – Number of Residential Properties Vacant

Indicator Methodology Page – "#" of total residential properties vacant

Measure Methodology Page – Source – U.S. Census Bureau, 2009-2013 American Community Survey (ACS) 5-year estimate

Methodology Page Note – The total residential properties vacant in a neighborhood cluster.

Original Geographic Level-
tract

Calculation- Calculation is: 'B25002_003E' (Number of Vacant Housing) Units divided by B25002_001E (Total Housing Unites)

Revise Indicator Description: vacants_val = Percent of Residential Properties Vacant

cmgiven commented 9 years ago

Note that per our conversation at the Data Dive, these numbers do differ in that the DC figures include blighted properties.