California Department of Transportation
 

Preliminary Investigations

The Caltrans Division of Research, Innovation and System Information (DRISI) receives and evaluates numerous research problem statements for funding every year. DRISI wishes to conduct Preliminary Investigations on these problem statements in order to better understand the need for the research in light of efforts already made on the topic nationally and internationally.

Please click here for the Preliminary Investigation Request Form

PI Process Flow Diagram

PI Status Checklist:

Completed Preliminary Investigations

District

Division of Research, Innovation and System Information

Design/construction

Environmental

Geotechnical/Structures

Maintenance

Modal

Pavement

Planning/Policy/System Information (PPSI)

Right of Way and Land Surveys

Rural

Transportation Safety and Mobility (TS&M)