Optimal Maintenance Task & Period Decision Method

초록

Since railway system is integrated with new technologies and gets more complex, higher requirements on system reliability, availability and safety are required. Existing maintenance task used to be performed based on manufacturer’s recommendations or experiences. These methods caused unnecessary maintenance task to be done and therefore increased maintenance cost. In this paper, consequently, we introduced new maintenance task decision method using RCM (RCM, Reliability Centered Maintenance) and quantitative maintenance task period decision method for railway signals for which replacement is selected as maintenance task. It is expected that newly introduced maintenance task and period decision method contributes to effective system operation by reducing unnecessary maintenance task and satisfies higher system reliability, availability and safety.