科研之友
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摘要
The productivity and service level of an express courier service are highly related to how to operate the consolidation. terminals and their corresponding service centers. A consolidation terminal typically acts as a hub in an express service network where packages from a number of service centers are combined, mixed, sorted, and transshipped for local deliveries. Initially, the design of an express service network is determined by considering the amount of initial investments and operating costs for terminals and service centers within the network. Therefore, continuous modifications of network design are required to adjust to rapidly changing business environments. This study suggests an approach to the reconfiguration of an express courier service network with respect to assignments of service centers to consolidation terminals and adjustments of their cutoff times. We propose an integer programming model and a genetic algorithm based solution procedure for allowing express couriers to maximize their incremental profit. An illustrative numerical example with reduced data sets from an express courier in Korea is presented to demonstrate the practicality and efficiency of the proposed model and its solution procedure.
- 出版日期2010-1
