Major Highways in California
Major highways in California have a maximum speed of 65 mph (104 kmph). Heavy traffic in California should be a concern, which occurs in cities weekdays around the hours of 8am and 5pm. It's not too difficult to avoid traffic times when leaving a city, but incorrectly timing your entrance to a city after a long California road trip can cost you several additional hours in traffic.
EXAMPLE: When embarking on a California road trip from north to south, don't randomly decide a time of departure. Instead, consider what the L.A. traffic will be like at arrival and choose a time frame to avoid L.A. traffic times. This should determine your departure time. Failure to do so will result in additional hours of heavy L.A. traffic.
Google Maps offers a great California traffic map for all cities & highways.
CALIFORNIA TRAFFIC MAP
CalTrans Traffic and up-to-date road conditions can be checked for all roads and highways including California road closures and traffic conditions due to road work or traffic accidents.
(800) 427-7623 or (916) 445-7623
CalTrans Live Traffic Cameras can be found for most major highways in California.
California Highway Patrol (CHP) provides a live traffic report for road closures, traffic alerts, traffic accidents, SIG Alerts and other CHP related incidents.
CHP ROAD CONDITIONS
The California Department of Motor Vehicles (DMV) provides information on California traffic laws, California road signs, vehicle registration in California and more.