AN ALTERNATIVE APPROACH FOR MODELING OF INTERFERENCE IN DISCRETE-EVENT SYSTEMS

Simulation modeling represents a framework within which discrete-event systems such as construction processes can be analysed, designed and improved. Modeling of some characteristics inherent in general construction processes, however, is difficult. One such characteristic is interference. This paper proposes a construction process-based methodology developed from a Petri Net approach for the modeling of the behavior. This new methodology provides an intuitive approach by the addition of three new modeling elements to basic Petri Net constructs. The functionality of the new elements is described and the implementation of the proposed methodology is provided. The approach provides a means of reflecting reality and practicality in construction-process modeling. It properly addresses the consequences of interference in terms of what happens to the interfered activities and to the involved resources.