Data Services and Technology

• Publish authoritative Caltrans geospatial data to the California Open Data Portal.
• Maintain the Caltrans GIS Data Library.
• Lead GIS4ALL the Caltrans GIS initiative.
• Work with Federal, State and Local Agencies on geospatial data sharing.
• Publish and maintain the Caltrans Linear Referencing System.
• Manage and maintain the Federally mandated Highway Performance Monitoring System (HPMS) condition and performance data.
• Maintain and manage public roads functional classification and designation approval processes.
• Collaborate with FHWA and Local Agencies to adjust Census designated urban boundaries.
• Manage and maintain the official California Road System (CRS) maps.
• Officially certify the annual Maintained Mileage Report of public road mileage for the State.
• Publish the Caltrans Facts Booklet.
• Submit Series 500 Statistical Reports to the FHWA.

Enterprise GIS Products and Services

Coordinating and collaborating with IT to manage ArcGIS Enterprise and ArcGIS Online for Caltrans. Administrate ArcGIS licenses, training, and advantage program. Maintain enterprise geospatial datasets, enterprise geospatial applications and geospatial governance.

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Highway Performance Monitoring System

The Highway Performance Monitoring System (HPMS) is a federally mandated inventory system and planning tool, designed by FHWA to assess the nation's highway system. HPMS was created in 1978 as a continuing, sample-based monitoring program that requires annual data reporting instead of biennial special studies. The HPMS Branch provides information to State and Federal Legislators necessary to ensure the connectivity, integrity, continuity, and functionality of the highway system and of the California Road System (CRS). We provide data to the Governor's office, the State Legislators, and the Federal Highway Administration in order to secure transportation funding for California's highways. Accurate, complete, and reliable information is provided to decision makers in the Federal Government, State Legislature, the Governor's office, and to other government agencies. We maintain the connectivity, functionality, integrity, numbering system, and naming of the State Highway System. We assist in meeting Federal funding requirements. We work towards the safe, expeditious, and efficient transportation of goods, services, and the traveling public across, through, and within California. Caltrans improves mobility across California using our data.

• Functional Classification
  The Federal Highway Administration (FHWA) identifies functional classification as a key item in transportation data. Streets and highways are grouped into classes according to the service they provide. The California Road System (CRS maps) on this web site display functional classification which is used in determining Federal funding to maintain the roads. The FHWA stamp of approval is in the lower left corner of each CRS map (PDF), which makes it the official functional classification.
  
  
• California Road System (CRS) Maps
  The California Road System (CRS) maps display functional classification which is used in determining Federal funding to maintain the roads. The FHWA stamp of approval is on the lower left corner of each CRS map, which makes the functional classification official.
  
  
• National Highway System (NHS)
  The NHS consists of roadways important to the nation’s economy, defense, and mobility.
  
  
• Adjusted Urban Areas
  Federal transportation legislation allows for the expansion of the Census‐defined urban areas for transportation planning purposes. The adjustment process is completed through the cooperative efforts of State and local officials and approved by the Federal Highway Administration (FHWA). The Adjusted Urban Area Maps are the result of this process.
  
  
• California Public Road Data
  The publications, California Public Road Data, contain statistical information derived from the Highway Performance Monitoring System (HPMS).

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Linear Referencing Systems

Maintain the California State Highway System and All Roads linear referencing services. The Linear Referencing System (LRS) is the geospatial representation of the California state highway system as described in the Transportation System Network (TSN) and is the Authoritative Reporting System for the Transportation System Network (TSN).

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Visualizations and Reporting

Submit the Series 500 Statistical reports to the Federal Highway Administration (FHWA) and create annual Caltrans Facts booklet. Develop compelling visualizations to make Caltrans data easier to understand and more transparent.