Census Tracts 2010

• Identification_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:Philadelphia City Planning Commission

Publication_Date:201302

Title:

Census Tracts 2010

Geospatial_Data_Presentation_Form:vector digital data

Online_Linkage: https://www.pasda.psu.edu/

Description:

Abstract:

Census tracts are small, relatively permanent statistical subdivisions of a county delineated by local participants as part of the U.S. Census Bureau's Participant Statistical Areas Program. The U.S. Census Bureau delineated census tracts in situations where no local participant existed or where local or tribal governments declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of decennial census data. Census tracts generally have between 1,500 and 8,000 people, with an optimum size of 4,000 people. Counties with fewer people have a single census tract.) When first delineated, census tracts are designed to be homogeneous with respect to population characteristics, economic status, and living conditions. The spatial size of census tracts varies widely depending on the density of settlement. Census tract boundaries are delineated with the intention of being maintained over many decades so that statistical comparisons can be made from decennial census to decennial census. However, physical changes in street patterns caused by highway construction, new developments, and so forth, may require occasional boundary revisions. In addition, census tracts occasionally are split due to population growth or combined as a result of substantial population decline.Census tracts are identified by a four-digit basic number and may have a two-digit numeric suffix; or example, 6059.02. The decimal point separating the four-digit basic tract number from the two-digit suffix is shown in the printed reports and on census maps. In computer-readable files, the decimal point is implied. Many census tracts do not have a suffix; in such cases, the suffix field is either left blank or is zero-filled. Leading zeros in a census tract number (for example, 002502) are shown only in computer-readable files. Census tract suffixes may range from .01 to .98. For the 1990 census, the .99 suffix was reserved for census tracts/block numbering areas (BNAs) that contained only crews-of-vessels population; for Census 2000, the crews-of-vessels population is part of the related census tract.Census tract numbers range from 1 to 9999 and are unique within a county or statistically equivalent entity. The U.S. Census Bureau reserves the basic census tract numbers 9400 to 9499 for census tracts delineated within or to encompass American Indian reservations and off-reservation trust lands that exist in multiple states or counties. The number 0000 in computer-readable files identifies a census tract delineated to provide complete coverage of water area in territorial seas and the Great Lakes. Projection: Lambert Conformal ConicXY Coordinate System: NAD 1983 StatePlane Pennsylvania South FIPS 3702 (US Feet)Datum: NAD 1983Units of Measurement: Foot_US

Purpose:

For matching and analyzing demographic data collected and compiled by the U.S. Census Bureau & American Community Survey(ACS) to the geography of Census Tract boundaries within the City of Philadelphia. These boundaries can change every ten years when the decennial census is conducted. When joining ACS tables use "LGRECNO" as a common field. Adjusted to City's Standard Boundary Format. - Features updated: 07/22/2012 - Attributes updated: 07/22/2012 - Metadata updated 09/20/2012

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date:201302

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate:-75.284153

East_Bounding_Coordinate:-74.954039

North_Bounding_Coordinate:40.143797

South_Bounding_Coordinate:39.861734

Keywords:

Theme:

Theme_Keyword_Thesaurus:ISO 19115 Topic Categories

Theme_Keyword:planning

Theme_Keyword:city planning

Theme_Keyword:PCPC

Theme_Keyword:Philadelphia

Theme_Keyword:City of Philadelphia

Theme_Keyword:2010 Census Tracts

Theme_Keyword:society

Access_Constraints:None

Use_Constraints:

The City of Philadelphia makes no representation about the accuracy of any specific information in this GIS data and is provided “as is” and without Warranty of any kind. The user of this data will assume complete responsibility for any and all occurrences resulting from its use or display and will hold the City of Philadelphia harmless from any and all claims, demands, liabilities, obligations, damages, suits, judgments or settlements, including reasonable costs and attorneys' fees, that arise from use of this data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person:Adityaraj Chavada

Contact_Organization:Philadelphia City Planning Commission

Contact_Address:

Address_Type:mailing and physical address

Address:

1515 Arch Street, 13 Fl

City:Philadelphia

State_or_Province:Pennsylvania

Postal_Code:19102

Country:United States

Contact_Electronic_Mail_Address:adityaraj.chavada@phila.gov

Contact Instructions:

Darshna Patel
(215) 683-4611 
darshna.patel@phila.gov

Data_Set_Credit:

Adityaraj Chavada, GISP
adityaraj.chavada@phila.gov
Philadelphia City Planning Commission
 1515 Arch Street, 13 Fl, Philadelphia, PA  19102
GIS Manager: Darshna Patel (215) 683-4611 and darshna.patel@phila.gov

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.4.4000

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method:Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type:GT-polygon composed of chains

Point_and_Vector_Object_Count:384

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name:Lambert Conformal Conic

Lambert_Conformal_Conic:

Lambert Conformal Conic

Standard_Parallel:39.93333333333333

Standard_Parallel:40.96666666666667

Longitude_of_Central_Meridian:-77.75

Latitude_of_Projection_Origin:39.33333333333334

False_Easting:1968500.0

False_Northing:0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method:coordinate pair

Coordinate_Representation:

Abscissa_Resolution:0.000000026907964745248598

Ordinate_Resolution:0.000000026907964745248598

Geodetic_Model:

Horizontal_Datum_Name:D North American 1983

Ellipsoid_Name:GRS 1980

Semi-major_Axis:6378137.0

Denominator_of_Flattening_Ratio:298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label:Philadelphia_Census_Tracts_2010

Attribute:

Attribute_Label:FID

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: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:STATEFP10

Attribute:

Attribute_Label:COUNTYFP10

Attribute:

Attribute_Label:TRACTCE10

Attribute:

Attribute_Label:GEOID10

Attribute:

Attribute_Label:NAME10

Attribute:

Attribute_Label:NAMELSAD10

Attribute:

Attribute_Label:MTFCC10

Attribute:

Attribute_Label:FUNCSTAT10

Attribute:

Attribute_Label:ALAND10

Attribute:

Attribute_Label:AWATER10

Attribute:

Attribute_Label:INTPTLAT10

Attribute:

Attribute_Label:INTPTLON10

Attribute:

Attribute_Label:LOGRECNO

Attribute:

Attribute_Label:SHAPE

Attribute_Definition:

Feature geometry.

Attribute_Definition_Source:

ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Coordinates defining the features.

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.

Attribute:

Attribute_Label:SHAPE_LEN

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:Pennsylvania Spatial Data Access (PASDA)

Contact_Address:

Address_Type:mailing and physical address

Address:

115 Land and Water building

City:University Park

State_or_Province:Pennsylvania

Postal_Code:16802

Country:United States

Contact_Voice_Telephone:(814) 865 - 8792

Contact_Electronic_Mail_Address:pasda@psu.edu

Distribution_Liability:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Metadata_Reference_Information:

Metadata_Date:201302

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:Pennsylvania Spatial Data Access (PASDA)

Contact_Address:

Address_Type:mailing and physical address

Address:

115 Land and Water building

City:University Park

State_or_Province:Pennsylvania

Postal_Code:16802

Country:United States

Contact_Voice_Telephone:(814) 865 - 8792

Contact_Electronic_Mail_Address:pasda@psu.edu

Metadata_Standard_Name:FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version:FGDC-STD-001-1998

Metadata_Time_Convention:local time