| snippet:
|
An Other Populated Area (OPA) is defined in 49 CFR 195.450 as a place, as defined and delineated by the Census Bureau, that contains a concentrated population, such as an incorporated or unincorporated city, town, village, or other designated residential or commercial area. OPAs 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. |
| summary:
|
An Other Populated Area (OPA) is defined in 49 CFR 195.450 as a place, as defined and delineated by the Census Bureau, that contains a concentrated population, such as an incorporated or unincorporated city, town, village, or other designated residential or commercial area. OPAs 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. |
| accessInformation:
|
Pipeline and Hazardous Materials Safety Administration (PHMSA); U.S. Census Bureau |
| thumbnail:
|
|
| maxScale:
|
5000 |
| typeKeywords:
|
[] |
| description:
|
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 11 0;"><SPAN><SPAN>Other Populated Areas (OPAs) are considered High Consequence Areas (HCAs) as defined in </SPAN></SPAN><SPAN><SPAN>49 CFR § 195.450. </SPAN></SPAN><SPAN>The OPA data is derived from the U.S. Census Bureau’s TIGER Census-Designated Places (CDP) and Incorporated Places data layers, which were downloaded from the Census website. After merging the CDP and Incorporated Places layers, any portions of polygons overlapped by Census Urban Areas (High Population Areas) data were erased from the data layer using the Esri ArcGIS ERASE command since those areas are included as part of the High Population Areas dataset. The resultant data layer represents the Other Populated Areas data layer. OPAs are all CDP/Incorporated Places that lie outside of the boundaries of Census Urban Areas that contain 50,000 or more people with a population density of at least 1,000 people per square mile. Depending on the version, the metadata is included as an .XML file within the downloadable Esri Shapefile or as an independent link. </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><SPAN>Version: 5 (Derived from 2022 National Sub-state Geography Geodatabase)</SPAN></SPAN></P><P STYLE="margin:0 0 11 0;"><SPAN>Census Places (Source Data): The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. The TIGER/Line shapefiles include both incorporated places (legal entities) and census designated places or CDPs (statistical entities). Incorporated places are those reported to the Census Bureau as legally in existence as of January 1, 2022, under the laws of their respective states. An incorporated place provides governmental functions for a concentration of people. Incorporated places may extend across county and county subdivision boundaries, but never across state boundaries. An incorporated place usually is a city, town, village, or borough, but can have other legal descriptions. CDPs are the statistical counterparts of incorporated places. CDPs are settled concentrations of population that are identifiable by name but not legally incorporated under the laws of the state in which the CDPs are located. The Census Bureau defines CDP boundaries in cooperation with local partners as part of the PSAP. CDP boundaries usually coincide with visible features or the boundary of an adjacent Incorporated Place or another legal entity boundary. CDPs have no legal status and do not have officials elected to serve traditional municipal functions. CDP boundaries may change from one decennial census to the next with changes in the settlement pattern; a CDP with the same name as in an earlier census does not necessarily have the same boundary. There are no population size requirements for CDPs. In the nine states of the Northeast (Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont) as well as Michigan, Minnesota, and Wisconsin, a CDP may represent a densely settled concentration of population within a town or township; in other instances, a CDP represents an entire town or township. All places shown in data products for Hawaii are CDPs. The Census Bureau (in an agreement with Hawaii) does not show data separately for the city of Honolulu (coextensive with Honolulu County). Puerto Rico only has CDPs, which are comunidades or zonas urbanas. Guam and the Commonwealth of the Northern Mariana Islands also have only CDPs. The boundaries of most incorporated places in this shapefile are as of January 1, 2022, as reported through the Census Bureau's Boundary and Annexation Survey (BAS). </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> |
| licenseInfo:
|
<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> |
| catalogPath:
|
|
| title:
|
OPA_V5 |
| type:
|
|
| url:
|
|
| tags:
|
["Other Populated Area","OPA","High Consequence Area","HCA","PHMSA","boundaries","nation","United States","Polygon","City","Village","Town","Census Designated Place","Census Incorporated Place","Polygon","National","United States","boundaries"] |
| culture:
|
en-US |
| name:
|
|
| guid:
|
|
| minScale:
|
150000000 |
| spatialReference:
|
|