Overview_Description:
Entity_and_Attribute_Overview: The TIGER/Line files contain data describing three major types of features/entities;
Line Features: 1) Roads; 2) Railroads; 3) Hydrography; 4) Miscellaneous transportation
features and Selected power lines and pipe lines; 5) Political and statistical boundaries.
Landmark Features: 1) Point landmarks, e.g., schools and churches; 2) Area landmarks, e.g.,
Parks and cemeteries; 3) Key geographic locations (KGLs), e.g., apartment buildings and
factories. Polygon features: 1) Geographic entity codes for areas used to tabulate the 1990
census statistical data and current geographic areas; 2) Locations of area landmarks 3)
Locations of KGLs. The line features and polygon information form the majority of data in
the TIGER/Line files. Some of the data/attributes describing the lines include coordinates,
feature identifiers (names), CFCCs (used to identify the most noticeable characteristic of a
feature), address ranges, and geographic entity codes. The TIGER/Line files contain point
and area labels that describe landmark features and provide locational reference. Area
landmarks consist of a feature name or label and feature type assigned to a polygon or group
of polygons. Landmarks may overlap or refer to the same set of polygons. The Census TIGER
data base uses collections of spatial objects (points, lines, and polygons) to model or
describe real-world geography. The Census Bureau uses these spatial objects to represent
features such as streets, rivers, and political boundaries and assigns
Entity_and_Attribute_Detail_Citation: For Entity and Attribute information, go to "Chapter 5" and "Chapter 6" of the U.S.
Bureau of the Census, TIGER/Line file Technical Documentation, available at
<
https://assets.nhgis.org/original-data/gis/TIGER_1992_TechDoc.pdf>. The TIGER/Line
documentation defines the terms and definitions used within the files.
