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TIGER data published through February 2007 (2006 Second Edition) were in a custom text-based format formally known as TIGER/Line files. In 2008, data in shapefile format was published. Please note that shapefiles are not topological, therefore may create slivers when comparing TIGER/Line boundaries.
U.S. Gazetteer, TIGER/Line shapefiles, census data. National Historical Geographic Information System: NHGIS provides free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2012. Atlas of Historical County Boundaries Project (AHCBP)
The origin of the geodatabase was in the mid-1990s during the emergence of the first spatial databases.One early approach to integrating relational databases and GIS was the use of server middleware, a third-party program that stores the spatial data in database tables in a custom format, and translates it dynamically into a logical model that can be understood by the client software.
This was most common from the 1970s through the early 1990s, because GIS software developers had to invent their own geometry data structures, but incorporated existing relational database file formats for the attributes. For example, the Esri Shapefile format includes the .dbf file from the DOS dBase software.
Examples include a point dataset of buildings, a line dataset of streets, or a polygon dataset of counties. The attributes of these features must include information that will match the geocodes in the input dataset, such as a name, unique id, or standard geocode such as the United States FIPS codes for geographic features. It is common for the ...
The Trump transition team wants the incoming administration to drop a car-crash reporting requirement opposed by Elon Musk’s Tesla, according to a document seen by Reuters, a move that could ...
About 1.5% of families and 3.2% of the population were below the poverty line, ... United States Census Bureau 2007 TIGER/Line Shapefiles; United States National Atlas
Dering told the Times a day after the shooting that when he called the tip line, the person who answered said "hundreds" of calls had already come in identifying the backpack as a Peak Design product.