California Department of Transportation

Commercial Vehicles

The trucking industry moves goods throughout the country providing an essential service to the economy.  In terms of value and weight, most commercial freight is moved by trucks.  Approximately 71% of goods by value and 69% of goods by weight are carried by truck in the United States (Bureau of Transportation Statistics, September, 2009).  This mode is critical for the efficiency and effectiveness of the freight transportation system, which is crucial for the economic vitality in California and the nation.  Trucking provides flexible, reliable, and economical service.

There are many factors that challenge commercial trucking such as traffic congestion, traffic accidents, weather, operating rules and regulations, scarcity of truck parking spaces, shortage of available drivers, road restrictions, and lack of intermodal connectors to ports and intermodal terminals.  Increased competition in the trucking industry, rising fuel costs, and just-in-time delivery have forced the industry to be more efficient and responsive to their customer needs.



Commerical Vehicles Liasion

Check out our freight fact sheet and our California Truck Network Map!

Commercial Vehicle Operations

Traffic counts are summarized annually in three publications: Traffic Volumes, Truck Traffic, and Ramp Volumes. Traffic Counts are averaged over a 365-day period and represented as Averaged Annual Daily Traffic (AADT). Historical information on truck and traffic volumes throughout California is provided by the Office of Performance Measurement within the Division of Traffic Operations. While the Office of Truck Services provides information on various aspects of commercial vehicle operations on the State Highway System, including permits, truck size and weight standards, truck routes, roadside rest areas, and weigh stations.  

Trucking Industry Trade Groups

Commercial Vehicle Classification Systems

Port Truck Clean Air Plans and Truck Management Programs

Drayage Trucks Resources