Science activity 2733

Highway Performance Monitoring System (HPMS)

Description / purpose

HPMS is a national highway information system that includes data on the extent, condition, performance, use, and operating characteristics of the Nation's highways. While every effort has been made to ensure accuracy and completeness of the data, users should carefully evaluate its accuracy, currency, completeness, and relevance for their purposes. In 2014, a Linear Referencing System (LRS), which links the HPMS attributes to geospatial data for all public roads, was created to meet the Federal Highway Administration (FHWA)’s All Road Network of Linear Referenced Data (ARNOLD) requirement. Caltrans monitors and collects GIS information about highways including traffic volumes, truck volume, bridges, HOV lanes, vistas, rest areas, bottlenecks, express lanes, park and ride lots, etc.

Activity status

  • Awarded / Initiating
  • In progress / Ongoing
  • Complete

Products & output

Type Title Description Impact
Report California Public Road Data 2018 report outlines Caltran's road monitoring for 201 8 views
Data Highway Performance Monitoring System (HPMS) Data ks users to the HPMS data and reports 6 views
Data Caltrans GIS Data ks users to all of Caltran's geospatial datasets ( 6 views

Funding summary



  • Region Region
  • Subbasin Subbasin

Geographic tags(s)


Type and content

Science action area
Management action(s)
Science function(s)
Science domain(s)
Program authority(s)
Science theme(s)