California law provides for a “basic speed law” contained in CVC 22350 which provides:

No person shall drive a vehicle upon a highway at a speed greater than is reasonable or prudent having due regard for weather, visibility, the traffic on, and the surface and width of, the highway, and in no event at a speed which endangers the safety of persons or property.

Posted speed limits in California are primarily established to protect the general public from the unreasonable behavior of reckless, unreliable, or otherwise dangerous drivers. Speed limits in California provide law enforcement with the means to identify and apprehend violators of the basic speed law.