The California Transit Association, in partnership with OpenGov, provides this interactive database displaying details on operating statistics and financial information regarding public transit in California.
This map displaying traffic delays is collected in real-time from over 39,000 individual detectors. These sensors span the freeway system across all major metropolitan areas of the State of California. PeMS is also an Archived Data User Service (ADUS) that provides over ten years of data for historical analysis.
The California Department of Public Health's EPICenter contains data about California injuries resulting from trauma, electronics (such as firearms), drugs & alcohol, and traffic accidents.