California Department of Transportation
Jim Appleton, Acting TSI Division Chief Photo of Tremain Downey, Chief, Office of Data Analysis & GIS. Click here to send Tremain a message. Photo of Mark Samuelson, Chief, Office of Highway System Information & Performance. Click here to send Mark a message. Photo of Sarah Chesbro, Chief, Office of Travel Forecasting and Analysis. Click here to send Sarah a message.

Mailing Address:

Department of Transportation
Division of TSI, MS #38
P.O. Box 942874
Sacramento, CA 94272-0001

FAX: 654-6583








Valid XHTML 1.0 Strict

Caltrans > Division of TSI: We are the 'Pathway to information!'

Division of TSI LogoDivision of Transportation System Information (TSI)

Our Mission:

TSI strives to provide quality information to our customers in a timely manner to improve mobility decisions.

Our Goals:

  • SATISFIED CUSTOMERS: Adding value to our customers' businesses.
  • TRUSTED PARTNERS: Being accountable to provide timely, quality products and services.
  • EDUCATED WORKFORCE: Optimizing the knowledge and experience of TSI staff.
  • INFORMED DECISIONS: Supporting inforrmed customer decisions by providing information, tools, services, and analysis.

Our Offices:

Office of Data Analysis and GIS (ODAGIS)

Office of Highway System Info and Performance (OHSIP)

Office of Travel Forecasting and Analysis (OTFA)



Updated December 14, 2011