「Special Act for the Safety Control of Public Structures」is for the periodical inspection and maintenance on the main structures. It is based on the reactive measures for the found faults and the maintenance budget is allotted with a ceiling. Therefore decision makers cannot establish long-term strategies and connot consider the serviceability from a user's point of view. The infrastructure maintenance system has to be renewed considering for the efficiency in the face to the rapid increase of the rate of deteriorated facilities.