Relations of Imperfect Repairs to Critical Infrastructure Maintenance Costs

This article presents an analysis of maintenance costs and policy critical infrastructure systems, considering the case imperfect repair. The a multistate approach repairs, are analyzed with reference to renewal stream process theory. Availability characteristics repairable systems non-negligible renovation time, necessary for cost analysis, determined based on classical We assume that system is renewed after exceeding its reliability state. proposed availability including allows various configurations system’s renewals. procedure determining total up certain point in time proposed. Furthermore, comparing repair operation until moment different number repairs states put forward exemplary application presented. Conducting perfect renewals state entire seems be most profitable study article. exception when much cheaper than (they half cost), or infrastructure’s considered short period exploitation (up one year). summary provides conclusion comparison repairs.