Name: HPA_V5

Display Field: HPA_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <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>

Service Item Id: cb98273448d94b3c8d51a2f0a1ab9dbb

Copyright Text: Pipeline and Hazardous Materials Safety Administration (PHMSA); U.S. Census Bureau

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: false

Supports Statistics: false

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -158.23128199999996
YMin: 13.393432000000075
XMax: 144.94833000000006
YMax: 61.27646400000005
Spatial Reference: 4269  (4269)  LatestVCSWkid(0)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [85, 255, 0, 255]
Outline:
Style: esriSLSSolid
Color: [110, 110, 110, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: false
Supports OrderBy: false
Supports Distinct: false
Supports Pagination: false
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: false
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• FID ( type: esriFieldTypeOID, alias: FID )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• OBJECTID ( type: esriFieldTypeInteger, alias: OBJECTID )
• HPA_NAME ( type: esriFieldTypeString, alias: HPA_NAME, length: 50 )
• DATA_YEAR ( type: esriFieldTypeString, alias: DATA_YEAR, length: 5 )
• HCA_Type ( type: esriFieldTypeString, alias: HCA_Type, length: 3 )
• SHAPE_Leng ( type: esriFieldTypeDouble, alias: SHAPE_Leng )
• SHAPE_Area ( type: esriFieldTypeDouble, alias: SHAPE_Area )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata