HPMS Public Release Shapefiles spatially represent limited data from the Highway Performance Monitoring System (HPMS) for 2011 and 2012 data years.
The files have been compressed utilizing the zip file format and are organized by State reflecting highways that are part of the HPMS-defined Federal-Aid System:
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2 Principal Arterial â€“ Other Freeways and Expressways
3 Principal Arterial â€“ Other
4 Minor Arterial
5 Major Collector
6 Urban Minor Collector
Additionally, any other highways that are designated as part of the National Highway System
There is also a file, PA_NHS.zip, which is a national dataset including all highways identified as Interstate, Principal Arterial â€“ Other Freeways and Expressways, Principal Arterial â€“ Other, and lower level roadways that are part of the National Highway System.
Please see the database to understand limitation and considerations related to use of this data.