Originally developed in 1998, the Interregional Transportation Strategic Plan (ITSP) is a statewide planning document that provides guidance for the identification and prioritization of interregional transportation projects on California’s highways and passenger rail corridors.
In 2015 Caltrans updated the ITSP to include a statewide reassessment of how Caltrans plans and prioritizes interregional transportation improvements. It included an evaluation of the sustainability, economic viability, and resiliency of the interregional transportation system.
Click here to view maps of the Strategic Interregional Corridors and Priority Facilities as identified in the 2015 Plan.
The 2021 ITSP aims to continue its commitment with regional agencies to improve the interregional transportation system through the following objectives: