Office of Data Services and Technology (ODST)

The Office of Data Services and Technology is the focal point for all GIS activities in the Department including strategic planning, enterprise deployment, spatial data development, cartographic products, training needs, software purchases, and development of GIS applications. The office also specializes in communicating and sharing transportation research results within Caltrans and with the larger transportation community.

What We Do

  • Publish and Maintain the Caltrans Linear Referencing System;
  • Maintain the Caltrans GIS Data Library;
  • Coordinate and publish the Caltrans Web Map Gallery;
  • Manage the implementation and deployment of statewide GIS activities for Caltrans;
  • Create and implement enterprise GIS systems and services;
  • Lead the coordination GIS activities at Caltrans;
  • Manage technology transfer communicating and sharing transportation research results; and
  • Provide research deployment training, expertise, and project specific guidance and mentoring.

ODST Branches


Harold Feinberg, Chief
Email Branch Chief

Our responsibilities include GIS oversight and planning. We implement and maintain the geospatial technology for the desktop, server, and web-based systems within the Caltrans spatial data infrastructure (SDI). The branch is also responsible for GIS Training, GIS Software Maintenance, and maintaining the GIS Data Library.


Gerald Schumacher, Chief
Email Branch Chief
Spatial Data Infrastructure
Implement and maintain desktop, server, and Web based geospatial technology within the Caltrans spatial data infrastructure (SDI).

Our team manages the Linear Referencing System (LRS), which is the visual representation of the California State Highway System as described in the Caltrans Transportation System Network (TSN). The LRS is used to map postmile events.  We also maintain an LRS as required by FHWA for the All Roads Network of Linear Referenced Data (ARNOLD).  ARNOLD is a representation of all Functionally Classified (FC) California roads from FC 1 through FC 7.  A copy of the geometry for ARNOLD is available from the FHWA.  A copy of the current California state highway system road geometry for our LRS is posted to the Caltrans GIS Data Library.

Other Applications
Provide GIS training for the Department, maintains the GIS software, and leads the GIS coordinators group.


Juan Araya, Chief
Email Branch Chief

Our responsibilities include communicating the value of transportation research. Sharing research results is a critical step in facilitating technology transfer and implementing innovative solutions to transportation challenges.
  • Research Deployment - Develop research deployment strategies, process expertise, and implement training for project managers in the process of sharing their work.
  • Technology Transfer - Provide research deployment training, expertise, and project specific guidance and mentoring.
  • Annual Research Highlights Report - Compile and publish the DRISI Annual Research Program Highlights Report with the intent to share research results and provide a two-year outlook of highlighted active research tasks.