Abstract
Scheduling of construction projects is an important planning function that provides a clear picture of the construction activities, construction sequence, and construction resources to the agencies involved in construction. In this paper a Petri Net-based scheduling method that is geared towards resource-based scheduling of construction projects is described. Petri Nets are graphical and mathematical modeling tools that can be used to perform static and dynamic analysis of systems. Under the proposed technique Generalized Stochastic Petri Net (GSPN) modeling elements are used to develop a construction schedule. Resources required to accomplish construction work tasks are explicitly identified and allocated to the corresponding work tasks. In addition the technique provides hierarchical features that allow top–down breakdown of a construction project and modular features to schedule repetitive units. The paper summarizes the steps required to perform scheduling of construction projects using the proposed technique and highlights its advantages. The scheduling of a sample bridge project also highlights the significant benefits of the method.
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