PETRI NETS FOR SIMULATION AND MODELING OF CONSTRUCTION SYSTEMS

Simulation and modeling of construction systems have been actively res earched over the past 20 years. This paper demonstrates how Petri nets , a powerful modeling tool previously used for modeling computer netwo rks and automated manufacturing systems, can be used effectively for m odeling construction systems. This paper describes the Petri net appro ach to modeling and shows how models of construction systems can be de veloped. Several common Petri net structures and features useful in co nstruction system modeling are described. Time and color Petri nets an d their application in modeling specific characteristics of constructi on systems are discussed. Two illustrative examples are presented and the advantages and disadvantages of Petri nets as tools for the modeli ng and simulation of construction operations are detailed.