20240529
12480500
1.0
FGDC CSDGM Metadata
FALSE
HPA_2022_V5
-158.231282
144.948330
13.393432
61.276464
1
002
Geographic
GCS_North_American_1983
Angular Unit: Degree (0.017453)
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FGDC
external
75b861fe78ccf80de5141420e954939c
Nathaniel Thompson
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration
GIS Coordinator
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration, East Building, 2nd floor, 1200 New Jersey Ave., SE
Washington
DC
20590
nathaniel.thompson@dot.gov
US
202-843-3818
True
Nathaniel Thompson
A High Population Area (HPA) is defined in 49 CFR 195.450 as an urbanized area, as defined and delineated by the Census Bureau, that contains 50,000 or more people and has a population density of at least 1,000 people per square mile. HPAs are one type of High Consequence Area (HCA) used by pipeline operators for integrity management purposes. Available for public download from www.npms.phmsa.dot.gov.
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>High Population Areas (HPAs) are considered High Consequence Areas (HCAs) as defined in </SPAN></SPAN><SPAN><SPAN>49 CFR § 195.450. </SPAN></SPAN><SPAN>The HPA data is derived from the U.S. Census Bureau’s TIGER Urban Areas data layer, which is reproduced with every decennial census and downloaded from the Census website. Within the Urban Areas data layer, features defined as Urban Areas containing 50,000 or more people with a population density of at least 1,000 people per square mile were extracted to become the High Population Areas data layer. Urban Areas with population densities lower than 1,000 people per square mile were not included in the High Population Areas data layer. A separate Excel table includes the 2020 Census population and population density values for each HPA. Depending on the version, the metadata is included as an .XML file within the downloadable Esri Shapefile. </SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>Shapefile available for public download from </SPAN></SPAN><A href="http://www.npms.phmsa.dot.gov"><SPAN><SPAN>www.npms.phmsa.dot.gov</SPAN></SPAN></A><SPAN><SPAN>.</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Version: 5 (Derived from 2020 Census Urban Areas) </SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Census Urban Areas (Source Data): The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. After each decennial census, the Census Bureau delineates urban areas that represent densely developed territory, encompassing residential, commercial, and other nonresidential urban land uses. In general, this territory consists of areas of high population density and urban land use resulting in a representation of the "urban footprint." Each urban area is identified by a 5-character numeric census code that may contain leading zeroes. </SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles.</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>HCAs are defined in 49 CFR § 195.450. This dataset is one resource available to assist operators with identifying locations that meet the regulatory definition of an HCA. If a location meets the regulatory definition of an HCA but it is not mapped in the HCA data currently available from PHMSA, that location is still an HCA. Operators must continually assess the locations in which their lines are located, to include reference to NPMS as one avenue to obtain data but not the sole avenue, to determine if they are in or could affect an HCA.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
Pipeline and Hazardous Materials Safety Administration (PHMSA); U.S. Census Bureau
High Population Area
HPA
High Consequence Area
HCA
PHMSA
2020 Census
Urban Areas
boundaries
National
United States
Polygon
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.</SPAN></P></DIV></DIV></DIV>
The High Population Areas (HPA) data is derived from the U.S. Census Bureau’s TIGER Urban Areas data layer, which is reproduced with every decennial census and was downloaded from the Census website. Within the Urban Areas data layer, features defined as Urban Areas containing 50,000 or more people with a population density of at least 1,000 people per square mile were extracted to become the “High Population Areas” data layer.
HPA_2022_V5
vector digital data
2023-03-22T00:00:00
2023-03-31T00:00:00
external
75b861fe78ccf80de5141420e954939c
Nathaniel Thompson
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration
GIS Coordinator
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration, East Building, 2nd floor, 1200 New Jersey Ave., SE
Washington
DC
20590
nathaniel.thompson@dot.gov
US
202-843-3818
True
Nathaniel Thompson
external
b2c5b663e7a9f02e17324800afc15c4d
Leigha Gooding
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration
GIS Manager
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration, East Building, 2nd floor, 1200 New Jersey Ave., SE
Washington
DC
20590
leigha.gooding@dot.gov
US
202-366-0667
True
Leigha Gooding
external
479cdc3934f49c3537d2f49ea3d1be36
U.S. Department of Transportation (DOT), Pipeline and Hazardous Materials Safety Administration (PHMSA)
1200 New Jersey Ave., S.E.
Washington
DC
20590
202-366-0667
True
U.S. Department of Transportation (DOT), Pipeline and Hazardous Materials Safety Administration (PHMSA)
5
High Populated Areas Version 5 represents the 2020 U.S. Census count. HPA data is updated when new Census Urban Areas data becomes available, usually several years after a new census count is completed.
2020-01-01T00:00:00
external
75b861fe78ccf80de5141420e954939c
Nathaniel Thompson
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration
GIS Coordinator
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration, East Building, 2nd floor, 1200 New Jersey Ave., SE
Washington
DC
20590
nathaniel.thompson@dot.gov
US
202-843-3818
True
Nathaniel Thompson
external
b2c5b663e7a9f02e17324800afc15c4d
Leigha Gooding
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration
GIS Manager
U.S. Department of Transportation, Pipeline and Hazardous Materials Safety Administration, East Building, 2nd floor, 1200 New Jersey Ave., SE
Washington
DC
20590
leigha.gooding@dot.gov
US
202-366-0667
True
Leigha Gooding
Decennial Census (upon release of Urbanized Areas data)
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
1
-158.231282
144.948330
61.276464
13.393432
Decennial Census
Within the U.S. Census Urban Areas data layer, features defined as Urban Areas containing 50,000 or more people with a population density of at least 1,000 people per square mile were extracted to become the “High Population Areas” data layer. To achieve this result, the 2020 Census Urban Area List Record Layouts table was joined to the U.S. Census Urban Areas layer based on the UACE field. A search was performed for all records that have a population of greater than or equal to 50,000 and a population density greater than or equal to 1,000. Any data records not meeting this criteria were omitted from the final dataset.
2018-01-02T00:00:00
external
479cdc3934f49c3537d2f49ea3d1be36
U.S. Department of Transportation (DOT), Pipeline and Hazardous Materials Safety Administration (PHMSA)
1200 New Jersey Ave., S.E.
Washington
DC
20590
202-366-0667
True
U.S. Department of Transportation (DOT), Pipeline and Hazardous Materials Safety Administration (PHMSA)
The 2020 Census Urban Area List Record Layouts table was joined to the U.S. Census Urban Areas layer based on the UACE field. A search was performed for all records that have a population of greater than or equal to 50,000 and a population density greater than or equal to 1,000. Any data records not meeting this criteria were omitted from the final dataset.
Data was visually checked to assure completeness, including comparisons with source data to ensure no data that meets the criteria of an HPA was ommitted. Data was compared to the equivalent dataset from the 2010 Census; large differences in the data were examined individually to ensure understanding of changes between the dataset based on the 2010 Census and the dataset based on the 2020 Census.
HPA_2022_V5
2020 Census Urban Area National
U.S. Census Bureau
Feature Class
5323
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
SHAPE
Geometry
0
0
0
Feature geometry.
ESRI
Coordinates defining the features.
HPA_NAME
HPA_NAME
String
50
Name of High Population Area (Same as "Name20" attribute from 2020 Census Urban Area data)
U.S. Census Bureau
Refer to the online Census 2020 Urban Area information at URL: https://www.census.gov/programs-surveys/geography/guidance/geo-areas/urban-rural.html
U.S. Census Bureau
0
0
DATA_YEAR
DATA_YEAR
String
5
Year of Census from which data was obtained
NPMS
Free text
year - 4 characters in length
U.S. Census
0
0
SHAPE_Area
SHAPE_Area
Double
8
Area of feature in internal units squared.
ESRI
Positive real numbers that are automatically generated.
0
0
SHAPE_Length
SHAPE_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
HCA_Type
HCA_Type
String
3
0
0
Type of High Consequence Area.
PHMSA
HPA
High Population Area
PHMSA
File Geodatabase Feature Class
dataset
EPSG
6.12(3.0.1)
5323
Simple
FALSE
5323
TRUE
FALSE
20230330