The Pavement Condition measure is commonly used in the pavement maintenance profession to indicate the condition on roads for the purpose of usability, lifespan, programming capital investments, measuring the cost liability of the road system. County roads are graded using a standardized method consistently utilized throughout the Bay Area cities and counties. The data is recorded as Pavement Condition Index (PCI). The PCI numerical rating for the condition of the roads is on a scale from 0 to 100, where 0 is the worst possible condition and 100 is the best. PCI is used to develop budgets, identify preventive maintenance schedules and strategies, evaluate materials and designs, and provide a historical condition of the road.