Discrete-Event Simulation of Newspaper Systems.

The cost and complexity of production systems dictate that workability be evaluated prior to design and installation. The only feasible and practical means to achieve this is through computer simulation. High-level languages provide the flexibility and speed necessary for quick evaluation of new systems in variable environments. These features are also invaluable in design and in evaluation of new system concepts. Reasons for simulation and some of the methodology are outlined. Discrete-event simulation is discussed, and language characteristics are sketched. Simulation modeling of the unique features of closed-loop conveyor systems is discussed, Application to newspaper roll handling and to mailroom bundle handling are reviewed. Models are used for experimentation to gain insight into operational characteristics. From this insight, ideas develop for computer control algorithms to go into minicomputers and microcomputers incorporated into the system design. A strategy for arranging mailroom truck manifests to match production schedules was developed using simulation. Simulation modeling of the unique features of closed-loop conveyor systems is discussed, Application to newspaper roll handling and to mailroom bundle handling are reviewed. Models are used for experimentation to gain insight into operational characteristics. From this insight, ideas develop for computer control algorithms to go into minicomputers and microcomputers incorporated into the system design. A strategy for arranging mailroom truck manifests to match production schedules was developed using simulation.