Description
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.
Primary roads are generally divided, limited-access highways within the interstate highway system or under State management, and are distinguished by the presence of interchanges. These highways are accessible by ramps and may include some toll highways. The MAF/TIGER Feature Classification Code (MTFCC) is S1100 for primary roads.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| TIGERweb/tigerWMS_PhysicalFeatures (MapServer) Rest Service | JSON | This Rest Service contains all the Transportation and hydrology layers | Open resource |
| TIGERweb/tigerWMS_PhysicalFeatures (MapServer) | WMS | This web mapping service contains the layer for the primary roads. This URL is to be used in mapping software like ArcMap. To use this in a web browser, see the OGC Web Mapping Specification. | Open resource |
| Shapefile Zip File | ZIP | tl_2017_us_primaryroads.zip | Open resource |
| TIGER/Line® Shapefiles | HTML | Should be used for most mapping projects--this is our most comprehensive dataset. Designed for use with GIS (geographic information systems). | Open resource |