Access to Jobs and Workers via Transit - Download (FGDC) / CBG_Trans45 (ISO)


FGDC Metadata

Identification Information:
Native Data Set Environment: Microsoft Windows 7 Version 6.1 (Build 7600) ; Esri ArcGIS 10.1.0.3035
Description:
Abstract: A collection of performance indicators and regional benchmarks for consistently comparing neighborhoods (census block groups) across the US in regards to their accessibility to jobs or workers via public transit service. Accessibility was modeled by calculating total travel time between block group centroids inclusive of walking to/from transit stops, wait times, and transfers. Block groups that can be accessed in 45 minutes or less from the origin block group are considered accessible. Indicators reflect public transit service in December 2012 and employment/worker counts in 2010. Coverage is limited to census block groups within metropolitan regions served by transit agencies who share their service data in a standardized format called GTFS.
Purpose: An employer or business may use this data to identify neighborhoods that have high transit accessibility to the regional population or workforce. In other words, it may use the data to identify locations that are easy to reach via transit for the greatest possible number of residents or potential workers. Such information can be valuable to facility siting decisions. Similarly this data can be used to identify residential locations that have high accessibility to jobs by transit. Regional benchmarks provide comparisons to better understand the performance of a block group compared to the best or average performance among all block groups in the surrounding metropolitan region.
Supplemental Information: http://epa.gov/smartgrowth/smartlocationdatabase.htm#trans45
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -138.21454852
East Bounding Coordinate: -12.68151645
North Bounding Coordinate: 61.7110157
South Bounding Coordinate: 6.65223303
Citation:
Citation Information:
Title: Access to Jobs and Workers via Transit - Download
Originator: US Environmental Protection Agency
Publication Information:
Publisher: U.S. EPA Office of the Administrator (OA) - Office of Policy (OP)
Publication Place: Washington, DC
Publication Date: 20140319
Online Linkage: https://edg.epa.gov/data/Public/OP/SLD/SLD_trans45.zip
Online Linkage: http://geodata.epa.gov/ArcGIS/rest/services/OA/SLD_Trans45/MapServer
Keywords:
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: transportation
Time Period of Content:
Currentness Reference: Ground condition
Time Period Information:
Single Date/Time:
Calendar Date: 2010
Status:
Progress: Complete
Maintenance and Update Frequency: irregular
Access Constraints: None.
Use Constraints: 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.
Security Information:
Security Classification System: http://project-open-data.github.io/schema/#accessLevel
Security Classification: public
Security Handling Description: Standard Technical Controls
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Environmental Protection Agency, Office of Sustainable Communities
Contact Person: Ted Cochin
Contact Position: Environmental Protection Specialist
Contact Address:
Address Type: mailing
Address: 1200 Pennsylvania Avenue, N.W.
Address: Mail Code: 1807T
City: Washington
State or Province: DC
Postal Code: 20460
Contact Voice Telephone: 206-566-2181
Contact Electronic Mail Address: cochin.ted@epa.gov
Contact Instructions: http://www.epa.gov/smartgrowth
Data Quality Information:
Logical Consistency Report: Limited integrity testing was performed due to time constraints. See User Guide.
Completeness Report: See User Guide for full discussion.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: 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)
Spatial Data Organization Information:
Direct Spatial Reference Method: Vector
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geodetic Model:
Horizontal Datum Name: D_WGS_1984
Ellipsoid Name: WGS_1984
Semi-major Axis: 6378137
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: CBG_Trans45
Entity Type Definition: Census block groups are units of US census geography. The polygons used are based on Census 2010 boundaries.
Entity Type Definition Source: US Census, 2010
Attribute:
Attribute Label: OBJECTID
Attribute Definition: Internal feature number.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: GEOID10
Attribute Definition: Block group FIPS code in string format
Attribute Definition Source: US Census
Attribute:
Attribute Label: CBSA
Attribute Definition: 5-digit identification code for containing core-based statistical area (metropolitan region)
Attribute Definition Source: US Census
Attribute:
Attribute Label: CBSA_Name
Attribute Definition: Name of the core based statistical area (or metropolitan region) in which block group resides.
Attribute:
Attribute Label: CBG_ID
Attribute Definition: Block group FIPS code in integer format
Attribute Definition Source: US Census
Attribute:
Attribute Label: TrAccess_Index
Attribute Definition: An index of relative accessibilitycompared to other block groups within the same metro region, as measured by travel time to working-age population via transit.
Attribute Definition Source: EPA Smart Location Database
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 1
Attribute:
Attribute Label: Pop_byTr
Attribute Definition: Total population able to access the block group within a 45-minute transit and walking commute
Attribute Definition Source: US Census, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Pop_byTr_min
Attribute Definition: Minimum Pop_byTr among all block groups within same CBSA
Attribute Definition Source: US Census, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Pop_byTr_max
Attribute Definition: Maximum Pop_byTr among all block groups within same CBSA
Attribute Definition Source: US Census, 2010
Attribute:
Attribute Label: Pop_byTr_av
Attribute Definition: Weighted average Pop_byTr among all block groups within same CBSA
Attribute Definition Source: US Census, 2010
Attribute:
Attribute Label: Pct_Pop_byTr
Attribute Definition: Total population able to access the block group within a 45-minute transit and walking commute as a percentage of total regional population.
Attribute Definition Source: US Census, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Pct_Pop_byTr_min
Attribute Definition: Minimum Pct_Pop_byTr among all block group within the same CBSA
Attribute Definition Source: US Census, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Pct_Pop_byTr_max
Attribute Definition: Maximum Pct_Pop_byTr among all block group within the same CBSA
Attribute Definition Source: US Census, 2010
Attribute:
Attribute Label: Pct_Pop_byTr_av
Attribute Definition: Weighted average Pct_Pop_byTr among all block group within the same CBSA
Attribute Definition Source: US Census, 2010
Attribute:
Attribute Label: HU_byTr
Attribute Definition: Total housing units reachable within a 45 minute transit and walking commute
Attribute Definition Source: US Census, 2010
Attribute:
Attribute Label: HH_byTr
Attribute Definition: Households able to access the block group within a 45-minute transit and walking commute
Attribute Definition Source: US Census, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Wrks_byTr
Attribute Definition: Employed population able to access the block group within a 45-minute transit commute from their home location.
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Wrks_byTr_min
Attribute Definition: Minimum Wrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Wrks_byTr_max
Attribute Definition: Maximum Wrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Wrks_byTr_Av
Attribute Definition: Weighted average Wrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_Wrks_byTr
Attribute Definition: Employed population able to access the block group within a 45-minute transit commute from their home location as a percentage of total regional employed population.
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_Wrks_byTr_min
Attribute Definition: Minimum pct_Wrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_Wrks_byTr_max
Attribute Definition: Maximum pct_Wrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Pct_Wrks_byTr_av
Attribute Definition: Weighted average pct_Wrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: LoWgWrks_byTr
Attribute Definition: Number of low wage workers (those earning $1250/month or less) that can reach the block group within a 45 minute transit commute
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: LoWgWrks_byTr_min
Attribute Definition: Minimum LoWgWrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: LoWgWrks_byTr_max
Attribute Definition: Maximum LoWgWrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: MeWgWrks_byTr
Attribute Definition: Number of medium-wage workers (those earning between $1250 adn $3,333 per month) that can reach the block group within a 45 minute transit commute
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: HiWgWrks_byTr
Attribute Definition: Number of high-wage workers (those earning greater than $3,333/month) that can reach the block group within a 45-minute transit commute
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: LoMeWgWrks_byTr
Attribute Definition: Low- and medium-waege workers (those earning $3,333/month or less) that can reach the block group within a 45-minute transit commute from their home location.
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: LoMeWgWrks_byTr_min
Attribute Definition: Minimum LoMeWgWrks _byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: LoMeWgWrks_byTr_max
Attribute:
Attribute Label: Pct_LoWgWrk_byTr
Attribute Definition: Low-wage workers that can reach the block group within a 45-minute transit commute from their home location as a percentage of all low-wage workers in region.
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoWgWrk_byTr_min
Attribute Definition: Minimum Pct_LoWgWrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoWgWrk_byTr_max
Attribute Definition: Maximum Pct_LoWgWrks_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoWgWrk_byTr_av
Attribute Definition: Weighted average LoWgWrks _byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_MeWgWrk_byTr
Attribute Definition: Medium-wage workers that can reach the block group within a 45-minute transit commute from their home location as a percentage of all medium-wage workers in region.
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoMeWgWks_byTr
Attribute Definition: Low- and medium-wage workers that can reach the block group within a 45-minute transit commute from their home location as a percentage of all low- and medium-wage workers in region.
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoMeWgWks_byTr_min
Attribute Definition: Minimum Pct_ LoMeWgWrks _byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoMeWgWrk_byTr_max
Attribute Definition: Maximum Pct_ LoMeWgWrks _byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_LoMeWgWrk_byTr_av
Attribute Definition: Weighted average Pct_ LoMeWgWrks _byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Jobs_byTr
Attribute Definition: Total jobs reachable within a 45-minute transit and walking commute
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Jobs_byTr_max
Attribute Definition: Maximum Jobs_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Jobs_byTr_min
Attribute Definition: Minimum Jobs_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Job_byTr_Av
Attribute Definition: Weighted average Jobs_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_Jobs_byTr
Attribute Definition: Total jobs reachable within a 45-minute transit and walking commute as a percentage of total regional jobs
Attribute Definition Source: Census LEHD, 2010
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Attribute:
Attribute Label: Pct_Jobs_byTr_min
Attribute Definition: Minimum Pct_Jobs_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_Jobs_byTr_max
Attribute Definition: Maximum Pct_Jobs_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Pct_Jobs_byTr_av
Attribute Definition: Weighted average Pct_Jobs_byTr among all block group within the same CBSA
Attribute Definition Source: Census LEHD, 2010
Attribute:
Attribute Label: Shape_Length
Attribute Definition: Length of feature in internal units.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute Label: Shape_Area
Attribute Definition: Area of feature in internal units squared.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Positive real numbers that are automatically generated.
Distribution Information:
Resource Description: Downloadable Data
Distribution Liability: https://edg.epa.gov/EPA_Data_License.html
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Environmental Protection Agency, Office of Sustainable Communities
Contact Person: Ted Cochin
Contact Position: Environmental Protection Specialist
Contact Address:
Address Type: mailing
Address: 1200 Pennsylvania Avenue, N.W.
Address: Mail Code: 1807T
City: Washington
State or Province: DC
Postal Code: 20460
Contact Voice Telephone: 206-566-2181
Contact Electronic Mail Address: cochin.ted@epa.gov
Contact Instructions: http://www.epa.gov/smartgrowth
Metadata Reference Information:
Metadata Date: 20140319
Metadata Future Review Date: 20180319
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Contact:
Contact Information:
Contact Person Primary:
Contact Organization: U.S. Environmental Protection Agency, Office of Sustainable Communities
Contact Person: Ted Cochin
Contact Position: Environmental Protection Specialist
Contact Address:
Address Type: mailing
Address: 1200 Pennsylvania Avenue, N.W.
Address: Mail Code: 1807T
City: Washington
State or Province: DC
Postal Code: 20460
Contact Voice Telephone: 206-566-2181
Contact Electronic Mail Address: cochin.ted@epa.gov
Contact Instructions: http://www.epa.gov/smartgrowth

ISO Metadata

Metadata language:
eng(countryCode):USA
Scope of the data described by the metadata:
dataset
Scope name: dataset
Last update: 20140311
Distribution Information:
Distribution format:
Format name: File Geodatabase Feature Class
Identification Information:
Processing environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.1.3497
Dataset language:
eng(countryCode):USA
Citation:
Title: CBG_Trans45
Presentation format:
digital map
Spatial representation type:
vector
Other extent information:
Geographic extent:
Geographic extent:
Extent contains the resource: yes
West longitude: -178.443606
East longitude: -69.858861
North latitude: 48.657839
South latitude: 21.199241
Spatial Representation Information:
Spatial Representation - Vector:
Geometric objects:
Object type:
composites
Object count: 126228
Level of topology for this dataset:
geometry only
Reference System Information:
Reference system identifier:
Reference system identifier:
(idCodeSpace):EPSG
(idVersion):8.2.6