In 1982, Orange County's Public Works Department developed an automated Pavement Management System (PMS). This outlines the 20 years of system utilization. The systems objectives were: (1) develop an objective, systematic methodology for determining roadway conditions and defining rehabilitation strategies for all streets and highways within unincorporated Orange County, Calif., and (2) establish a process where a preventative mode of maintenance work is planned and performed for the entire Orange County roadway system. The county had to plan and optimize expenditures better because of population growth, accompanying traffic and an increase in volume and magnitude of heavy vehicles.