Since the 1970s, construction projects of SOC infrastructure have began rapidly. therefore, it is expected that the proportion of infrastructure using for more than 30 years will be increased in an instant. Because an aging infrastructure can greatly damage the national economy and people, maintenance of the infrastructure is essential. In this paper, performance-based evaluation items for maintenance of SOC(Social Overhead Capital) infrastructure and the process of calculating the weights of each items by using the AHP(Analytic Hierarchy Process) method are introduced.

In this paper, internal and external research trends and plans related to development of performance–based evaluation methodology for structures in use was introduce to deal with the various problems due to the aging of the domestic SOC(Social Overhead Capital) facilities preemptively.