Requisition throughout time simulation at Naval Supply Center San Diego
Lynch, Michael G.
Ulrich, Charles Howard
Richards, F. Russell
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A computer model which simulates the processing of requisitions for standard stock material at NSC San Diego is constructed. The model is designed to enable NSC San Diego to determine those work stations which are bottlenecks and to view the effects of changes in total throughput time caused by changes in manpower resources and administrative procedures. Output from the computer simulation model includes an analysis of throughput time by issue priority group, and summary data on work center utilizations and delay times. Total throughput time is compared to Uniform Material Movement and Issue Priority System time standards. The automated materials handling system seems to achieve its goals; however large delays are seen to occur in the staging area where items await local transportation. These delays are reflected most critically in the statistics for the percentage of issue priority group two material shipped on time. Variations of the basic model were analyzed. The combination of a six day workweek and an increased local delivery schedule resulted in substantial improvement.
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