With these tools researchers are able to precisely identify warehousing and logistical capabilities of an enterprise, to monitor an individual consignment, to analyze size and due-dates of deliveries as well as to plan and schedule deliveries. In research on optimization of internal logistics management systems mathematical and IT tools are utilized. In result the utilization rate of storage areas is supposed to increase, inventory costs are supposed to decrease, and level of customer service quality should raise. These goals are obtained through shortening time of receipting and dispatching operations, speeding-up handling operations, eliminating or reducing bottlenecks in handling and warehousing processes. Efficiency of this system results in efficiency of the entire logistics center, therefore both separate modules as well as the complex system are designed and implemented with the aim to increase efficiency of warehousing and inventory management. In a logistics center all the processes of handling, loading and discharging goods as well as document circulation processes are controlled with an internal logistics management system. The objective of this formulation of cyclic deliveryscheduling problem is to obtain such synchronization of vehicles arrivals in logistics centers and load time, so that it is possible to organize their arrivals in repeatable modules.
This paper is devoted to the possible utilization of a MIP model for the cyclic delivery-scheduling problem for a network of manufacturers' plants and logistics centers where vehicles' serve fixed routes.
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