Interregional Transportation Strategic Plan


The Interregional Transportation Strategic Plan (ITSP) is a California Department of Transportation (Caltrans) planning document that provides guidance for the identification and prioritization of interregional transportation projects identified on the State’s Interregional Transportation System. Caltrans prepared the first ITSP in 1998 in response to Senate Bill (SB) 45 passed in 1997, which altered the priorities and processes for programming and expenditure of State transportation funds. Those funding priorities have not changed; however, significant new statewide policies and goals have emerged since then. The Interregional Transportation Improvement Program is still required to fund improvements to the interregional transportation system and, specifically, to the 93 Interregional Road System (IRRS) routes and State-run intercity rail corridors. The ITSP remains the planning document that will be used in the identification and selection of projects for Interregional Transportation Improvement Program (ITIP) funding.


Upcoming Workshops

Northern California Workshop November 12th, 2020 10:30am - 12:00pm
Central California Workshop November 17th, 2020 1:30pm - 3:00pm
Southern California Workshop December 1st, 2020 10:00am to 11:30am

Caltrans still welcomes you to sign up for the workshop on the date that best fits your schedule and availability should you not be able to attend the general region you represent. Upon successful registration you will also be included in our mailing list for future updates from the ITSP team. We hope you will join us and be a part of these discussions on the future of California’s interregional transportation system.


For more information please