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Service Description: This National Highway System dataset was exported from Caltrans Linear Reference System (LRS) on July 18, 2023. The LRS serves as the framework upon which the Highway Performance Monitoring System (HPMS) and other business data are managed.
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Description: This National Highway System dataset was exported from Caltrans Linear Reference System (LRS) on July 18, 2023. The LRS serves as the framework upon which the Highway Performance Monitoring System (HPMS) and other business data are managed.
Service Item Id: ff4ac2e94073482b9bde62d3ab9f07fa
Copyright Text: California Department of Transportation (Caltrans)
Spatial Reference:
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Spatial Reference: 102100
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Spatial Reference: 102100
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Units: esriMeters
Document Info:
Title: National Highway System
Author:
Comments: This National Highway System dataset was exported from Caltrans Linear Reference System (LRS) on July 18, 2023. The LRS serves as the framework upon which the Highway Performance Monitoring System (HPMS) and other business data are managed.
Subject: This California Enhanced National Highway System (NHS) line feature class is created under the federal authorization MAP-21(Moving Ahead for Progress in the 21st Century). On October 1, 2012 the existing National Highway System (NHS) was expanded to include all existing Principal Arterials (i.e. Functional Classifications 1, 2 and 3) to the new Enhanced NHS.
Under MAP-21, the Enhanced NHS is composed of rural and urban roads nationwide serving major population centers, international border crossings, intermodal transportation facilities, and major travel destinations. The NHS includes:
-The Interstate System.
-Other Principal arterials and border crossings on those routes (including other urban and rural principal arterial routes, and border crossings on those routes, that were not included on the NHS before the date of enactment of the MAP-21).
-Intermodal connectors -- highways that provide motor vehicle access between the NHS and major intermodal transportation facilities.
-STRAHNET -- the network of highways important to U.S. strategic defense.
-STRAHNET connectors to major military installations.
Category:
Keywords: Clearinghouse,Highway,National,System
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