Welcome to Caltrans District 4

Caltrans District 4 Traffic Operations

OFFICE OF HIGHWAY OPERATIONS reviews and performs all traffic operational analyses, including corridor studies, interchange and intersection analyses, and also identifies and develops operational improvement projects. The Office also supports Traffic Management Plans (TMPs) through the development of lane closure charts, detour routes, and assessment of delay impacts. Highway Operations monitors freeway congestion, monitors the operations of High Occupancy Vehicle (HOV) lanes, and reviews and provides input on operational impacts of projects and Environmental Impact Reports (EIR's) proposed by District units and by other agencies. In addition, the Office maintains the District's Census and Inventory count data.