Buried waste program retrieval process conceptual model design

This document describes the conceptual design of a computer simulation model to provide performance estimates, and assist in making decisions about the retrieval phase of the Buried Waste Program at the Radioactive Waste Management Complex. The model will be developed to address queueing, scheduling, materials handling, and transportation problems. Estimated values for significant parameters, not found by conventional means, will be determined through simulation runs. A functional model of the retrieval operations forms the basis for the conceptual design. This function diagramming model was developed using the IDEF/sub O/ methodology. It is presented first through a brief explanation of its construction and use, then by means of working diagrams. The IDEF/sub O/ model is composed of diagrams that interrelate inputs, outputs, controls, and mechanisms of various buried waste retrieval functions. These diagrams allow definition of the working scope of the retrieval process to any level of detail desired, but mainly provide direction for the computer simulation model to follow. A description of the proposed computer simulation model is given. This includes choice of simulation language (SIMAN), conceptual content, language design profile, software and hardware requirements, operating logic, and expected results. 6 refs., 5 figs., 1 tab.