A moving violation for running red lights in California can come with hefty fines – some of the highest in the nation. The average fine for rolling through a stop sign is $250 in California. Fines can escalate to $450-$500 for running red lights. The base fine for this infraction is $100, but the total increases with additional court costs depending on the county. These costs can include state and court penalty assessments, court operations, and conviction assessments. Attending traffic school is an additional cost associated with these violations.