{781BDD8F-2BF4-4072-86E9-FA67BC6C5E8B}Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.1.3497Jobs Within a 30-minute Transit and Walking CommuteJohn V. ThomasUS EPA Office of Sustainable Communities1-178.443606-69.85886148.65783921.199241Kevin Ramsey, US EPA Office of Sustainable Communities and Alexander Bell Renaissance Planning GroupFile Geodatabase Feature ClassdatasetEPSG8.2.6126228VectorCBG_Trans30Census block group boundaries as defined in the 2010 Census.US Census, 2010OBJECTIDInternal feature number.EsriSequential unique whole numbers that are automatically generated.ShapeFeature geometry.EsriCoordinates defining the features.GEOID10Census block group FIPS code in string formatUS CensusCBSACBSA_NameCBG_IDCensus block group FIPS code in integer formatUS CensusShape_LengthLength of feature in internal units.EsriPositive real numbers that are automatically generated.Shape_AreaArea of feature in internal units squared.EsriPositive real numbers that are automatically generated.EMPTOT10_sumTotal jobs reachable within a 30-minute transit and walking commuteCensus LEHD, 201020140312Microsoft Windows 7 Version 6.1 (Build 7600) ; Esri ArcGIS 10.1.0.3035-138.21454852-12.6815164561.71101576.65223303Jobs within a 30-minute transit ride - ServiceUS Environmental Protection AgencyU.S. EPA The Office of Land & Emergency ManagementWashington, DC20140319https://geodata.epa.gov/ArcGIS/rest/services/OA/SLD_Trans30/MapServerhttps://edg.epa.gov/data/Public/OP/SLD/SLD_Trans30.zipISO 19115 Topic CategorytransportationThis mapping service summarizes the total number of jobs that can be reached within 30 minutes by transit. EPA modeled accessibility via transit 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 30 minutes or less from the origin block group are considered accessible. Values reflect public transit service in December 2012 and employment 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.
All variable names refer to variables in EPA's Smart Location Database. For instance EmpTot10_sum summarizes total employment (EmpTot10) in block groups that are reachable within a 30-minute transit and walking commute. See Smart Location Database User Guide for full variable descriptions.This data can be used to evaluate the relative performance of neighborhoods in regards to their accessibility to jobs via public transit service. Among other applications, transportation planners can used this data as inputs when evaluating the potential traffic generated by proposed mixed-use developments using EPA’s MXD tool.http://epa.gov/smartgrowth/smartlocationdatabase.htm#trans30Ground condition2010irregularNone.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.http://project-open-data.github.io/schema/#accessLevelpublicStandard Technical ControlsU.S. Environmental Protection Agency, Office of Sustainable CommunitiesJohn V. ThomasEnvironmental Protection Specialistmailing1200 Pennsylvania Avenue, N.W.Mail Code: 8623RWashingtonDC20460202-564-6677thomas.john@epa.govhttps://www.epa.gov/smartgrowth2017042020210420FGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998U.S. Environmental Protection Agency, Office of Sustainable CommunitiesJohn V. ThomasEnvironmental Protection Specialistmailing1200 Pennsylvania Avenue, N.W.Mail Code: 8623RWashingtonDC20460202-564-6677thomas.john@epa.govhttps://www.epa.gov/smartgrowthD_WGS_1984WGS_1984637813715000000050001.0FGDCAttribute value ranges were tested for validity.See Smart Location Database User Guide for full discussion of 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)Live Data and Mapshttps://edg.epa.gov/EPA_Data_License.htmlU.S. Environmental Protection Agency, Office of Sustainable CommunitiesJohn V. ThomasEnvironmental Protection Specialistmailing1200 Pennsylvania Avenue, N.W.Mail Code: 8623RWashingtonDC20460202-564-6677thomas.john@epa.govhttps://www.epa.gov/smartgrowth