WSC

A large flow shop with cycling has been modeled with GASP II in an effort to study the effects of scheduling rules and capacity constraints. Consisting of multiple codes requiring 150-175 operations on 55 facilities, the shop, an integrated circuit line,...

An empirically-derived job-shop simulation model is the heart of the study. This provides the opportunity to explore some techniques not normally applicable in hypothetical job-shop simulation models. First, the model is designed to include the ...

For many years the Polaroid Corporation had manufactured its familiar film pack. Although this film has been available in both color and black-and-white, manufacture of both types is accomplished in exactly the same manner. Figure 1 is a view of the ...

This paper presents a SIMSCRIPT simulation model designed for general use by health systems planners in evaluating existing or proposed emergency medical systems. An extensive validation of the model was performed using actual data from the San Fernando ...

Simulation models have been used in a variety of ways for behavioral research. This paper discusses appropriate and inappropriate roles for the technique in such research.

As part of a projected simulation of the social, political, and economic character of an urban community, a simulation model of the political subsystem of a large city has been constructed. The model assigns utility functions and decision rules to the ...

This paper will apply the concepts of general systems theory and systems modeling simulation to an initial study of social group interaction. The social groups or organizations to be considered are those relating to the “civil rights movement” within ...

This paper describes a GPSS/360 simulation of a two-man machine model where the performance of both operators as they together perform a task comprising of a series of individual and/or interacting subtasks is simulated. The program considers in ter and ...

Man-machine simulation is one approach to determining system effectiveness as a function of subsystem performance, but often man has not been treated as a viable element in system effectiveness studies. The model discussed here is an example of how ...

A major consideration in the original design and in the expansion of any computer-communication network is the provision of a network which will be relatively invulnerable to failures of its components. This paper considers the reliability analysis of ...

This paper is concerned with the allocation of a single type of resource in project networks (such as the PERT representation) composed of activities whose processing times are random variables. There is a continuum of alternative processing methods for ...

This paper presents a new model for simulating the flow behavior describing the efficiency of oil recovery in underground geologic formations. Simulation of the oil displacement problems involve the solution of large numbers of simultaneous equations ...

The characteristics of the New York Stock Exchange closely resemble those necessary for an efficient market: large numbers of participants, rapid dissemination of information, low transaction costs and easy accessibility. These equilibriating conditions ...

The agricultural environment encompasses an important segment of production and distribution operations in the American economy. Many agriculturally related enterprises experience large fluctuations in their inventories, production activities, sales, ...

This paper describes a simulation model that was developed to help a company analyze and improve its rules for purchasing one of its key raw materials. The material is traded on a commodity market and the company had successfully developed a system for ...

A simulation model of the stock market is proposed here. While it is not practical (nor desirable) to include all aspects of the stock market in our model, we do hope that the proposed market mechanism has captured a sufficient number of essential ...

The model, written in GPS K, (General Purpose Simulator K is a discrete simulation software package offered by Honey-well Information Systems, Inc.) is in a generalized form from which any specific repair center can be simulated. A repair center is a ...

GPSS/360 was used to model manpower allocation in the Turbine Engine Maintenance Process. The purpose was to evaluate alternate proposals for allocation of manpower. Forecasted workloads of engines were processed against these proposals. Simulation ...

In the instruction of system engineering disciplines, like maintainability or reliability, the importance of considering the interactions of all system parameters in the evaluation of proposed hardware configurations must be emphasized. The student ...

The next generation of ground transportation systems will use sophisticated vehicles and computer controls. Maintenance planning for these systems requires correspondingly advanced management techniques. Simulation has proved to be a valuable management ...

Although GPSS enjoys many advantages as a language for modeling discrete, non-deterministic systems, it suffers from several disadvantages. GPSS is interpretive, resulting in relatively slow execution times. In addition, the input/output and ...

The simulation program was written to describe a concrete highway paving operation using mobile central-mix plant and slip form paver, in combination with different truck haul fleet sizes and truck speeds. The trucks queue at the plant, load, travel to ...

Most manufacturing operations assign fork trucks to the individual shop units which need them. This can lead to excessive numbers of fork trucks and low average utilization. The pooling of fork truck resources under a central authority can resolve this ...

Three parallel production line configurations are compared by simulation: parallel but independent, dual line without expediting, and a dual line with expediting possible around a failure station. Each facility within a stage draws parts from a common ...

One proposal for improving the combined performance of a shop and its associated inventory system is to incorporate inventory information into priority scheduling rules. This paper describes several ways that inventory information can be used for ...

The analytical complexity of most automobile traffic intersections strongly directs the researcher to simulation as his tool of analysis. This tool, through the General Purpose Systems Simulation language (GPSS), was used in a recent investigation of ...

The Tanker Logistics System is a highly interactive, man-machine system for determining feasible tanker schedules on an annual basis. This system provides a basic tool for quickly evaluating alternative schedules due to changing conditions in a highly ...

The advent of low-cost ultrareliable integrated circuits has made feasible the design of a responsive electronic vehicular instrumentation system that results in significant improvement in the surveillance of highway internal performance factors; e.g. ...

This paper is concerned with the development of a digital simulation model for use as a tool in the analysis of the visual quality of a freeway on-ramp.

This paper presents results of several DAS/C system design studies and shows how simulation is used to support these studies at the detail level while simultaneously monitoring the overall design to assure meeting the system objectives.

This paper is ...