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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.3.3600
SLD
1
-180.000000
180.000000
90.000000
2.969871
File Geodatabase Feature Class
dataset
EPSG
8.2.6
220653
20210513
ISO 19115 Topic Category
health
society
transportation
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US Environmental Protection Agency
Walkability Index
U.S. Environmental Protection Agency, Office of Sustainable Communities
Washington, DC
20210513
https://edg.epa.gov/EPADataCommons/public/OA/WalkabilityIndex.zip
https://edg.epa.gov/EPADataCommons/public/OA/EPA_SmartLocationDatabase_V3_Jan_2021_Final.csv
https://geodata.epa.gov/arcgis/rest/services/OA/WalkabilityIndex/MapServer
https://www.epa.gov/smartgrowth/national-walkability-index-user-guide-and-methodology
The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of the built environment that influence the likelihood of walking being used as a mode of travel. The Walkability Index is based on the EPA's previous data product, the Smart Location Database (SLD). Block group data from the SLD was the only input into the Walkability Index, and consisted of four variables from the SLD weighted in a formula to create the new Walkability Index. This dataset shares the SLD's block group boundary definitions from Census 2019. The methodology describing the process of creating the Walkability Index can be found in the documents located at https://edg.epa.gov/EPADataCommons/public/OA/WalkabilityIndex.zip. You can also learn more about the Smart Location Database at https://www.epa.gov/smartgrowth/smart-location-mapping.
The Walkability Index is intended to help address a growing demand for data products and tools that enable users to consistently compare multiple places based on their suitability for walking as a means of travel. It may be of use as source data for transportation or land use sketch planning tools.
See documentation available at https://edg.epa.gov/EPADataCommons/public/OA/WalkabilityIndex.zip
Ground condition
2019
irregular
None.
None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
-180.000000
180.000000
90.000000
2.969871
http://project-open-data.github.io/schema/#accessLevel
public
Standard Technical Controls
U.S. Environmental Protection Agency, Office of Land and Emergency Management
John Thomas
Environmental Protection Specialist
mailing and physical address
1200 Pennsylvania Avenue, N.W.
Mail Code 8623R
Washington
DC
20460
202 566 1285
thomas.john@epa.gov
https://www.epa.gov/smartgrowth
Downloadable Data
https://edg.epa.gov/EPA_Data_License.html
U.S. Environmental Protection Agency, Office of Land and Emergency Management
John Thomas
Environmental Protection Specialist
mailing and physical address
1200 Pennsylvania Avenue, N.W.
Mail Code 8623R
Washington
DC
20460
202-564-6677
thomas.john@epa.gov
https://www.epa.gov/smartgrowth
20170420
20210420
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
U.S. Environmental Protection Agency, Office of Land and Emergency Management
John Thomas
Environmental Protection Specialist
mailing and physical address
1200 Pennsylvania Avenue, N.W.
Mail Code 8623R
Washington
DC
20460
202-564-6677
thomas.john@epa.gov
https://www.epa.gov/smartgrowth
Attribute value ranges were tested for validity. See report for full discussion of corrective measures taken.
See report for full discussion of data completeness.
Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10). For more information, please see EPA's NGDP at http://epa.gov/geospatial/policies.html
20151223
See report for full description of processing steps.
U.S. Environmental Protection Agency, Office of Sustainable Communities
John Thomas
Environmental Protection Specialist
mailing and physical address
1200 Pennsylvania Avenue, N.W.
Mail Code 8623R
Washington
DC
20460
202 566 1285
thomas.john@epa.gov
https://www.epa.gov/smartgrowth
WalkabilityIndex
A census block group is a geographical unit used by the US Census that is smaller than a census tract but larger than a census block. Each block groups is a cluster of census blocks having the same first digit of their four-digit identifying numbers within a census tract.
Smart Location Database (SLD)
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
GEOID10
Census block group 12-digit FIPS code
2010 Census TIGER/Line
2010 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
GEOID20
Census block group 12-digit FIPS code
2020 Census TIGER/Line
2010 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
TRACTCE
FIPS code for Census tract in which block group resides
2019 Census TIGER/Line
2019 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
COUNTYFP
FIPS code for county in which the block group resides
2019 Census TIGER/Line
2019 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
STATEFP
FIPS code for state in which the block group resides
2019 Census TIGER/Line
2019 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
CSA
FIPS code for Combined Statistical Area (CSA) in which block group resides
US Census
2019 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
CSA_Name
Name of CSA in which block group resides
US Census
Text
CBSA
FIPS code for Core Based Statistical Area (CBSA) in which block group resides
US Census
2019 TIGER/Line Shapefiles
https://www.census.gov/geo/maps-data/data/tiger-line.html
CBSA_Name
Name of CBSA in which block group resides
US Census
Text
COUNTHU10
Housing units, 2019
US Census
0
21535
TOTPOP
Population, 2019
US Census
0
37452
HH
Households (occupied housing units), 2019
US Census
0
16043
WORKERS
Number of workers in block group (home location), 2019
Census LEHD, 2019
0
11453
AC_TOT
Total geometric area of block group in acres
US Census TIGER/Line
1.01
40526288
AC_WATER
Total water area of block group in acres
SLD
0
8971070
D4a
Distance from population weighted centroid to nearest transit stop (meters)
SLD
0
1207
AC_UNPR
Total land area that is not protected from development (i.e., not a park or conservation area) of block group in acres
SLD
0
2672260
D2A_EPHHM
Employment and household entropy
SLD
0
1
D2B_E8MIXA
8-tier employment entropy (denominator set to the static 8 employment types in the CBG)
SLD
0
1
D3b
Street intersection density (weighted, auto-oriented intersections eliminated)
SLD
0
5173
Ac_Land
Total land area of block group in acres
SLD
0
38150519
D2A_Ranked
Ranked score of block group's D2a_EPHMM value relative to other block groups
Walkability Index
1
20
D2B_Ranked
Ranked score of block group's D2b_E8mixA value relative to other block groups
Walkability Index
1
20
D4A_Ranked
Ranked score of block group's D4a value relative to other block groups
Walkability Index
1
20
D3B_Ranked
Ranked score of block group's D3b value relative to other block groups
Walkability Index
1
20
NatWalkInd
The score represents the relative walkability of a block group compared to other block groups
Calculated based upon ranking and formula described in documentation
1
20
Shape_Length
Length of feature in internal units.
ESRI
Positive real numbers that are automatically generated.
Shape_Area
Area of feature in internal units squared.
ESRI
Positive real numbers that are automatically generated.
All attribute data is summarized by Census 2010 block group boundaries. A detailed overview of the research behind this dataset is available in the technical report available here https://edg.epa.gov/EPADataCommons/public/OA/WalkabilityIndex.zip
See report.
D North American 1983
GRS 1980
6378137.0
298.257222101