Most maintenance-optimisation models assume an infinite planning horizon and suppose that the failure process is … information (such as a variable use of components and the occurrence of maintenance opportunities). With numerical experiments we … stationary-planning method with the costs according to an approach which can adapt this long-term plan to dynamically changing …

Nowadays railway companies are confronted with high infrastructure maintenance costs. Therefore good strategies are … needed to carry out these maintenance activities in a most cost effective way. In this paper we solve the preventive … maintenance scheduling problem (PMSP) using genetic algorithms, memetic algorithms and a two-phase heuristic based on …

maintenance manager in his planning job. We present a fast approach that allows interactive planning by showing how shifts from …A maintenance activity carried out on a technical system often involves a system-dependent set-up cost that is the same … for all maintenance activities carried out on that system. Grouping activities thus saves costs since execution of a group …

Accurate prediction of medical operation times is of crucial importance for cost efficient operation room planning in … about 1,250 surgical operations in 2009 is improved by up to more than 15 percent as compared to current planning procedures. …

A railway system needs a substantial amount of maintenance. To prevent unexpected breakdowns as much as possible …, preventive maintenance is required. In this paper we discuss the Preventive Maintenance Scheduling Problem (PMSP), where (short …

the coating on these structures, maintenance actions can be done in the most efficient way. Therefore the course of the … deterioration of the coating system and its lifetime, which is also of importance for doing maintenance, have to be assessed …