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Previous research of construction schedule is based on the classic model of network planning technique as the background, assume the duration of each process were independent of each other in the schedule network planning. In the process of the practical project, each duration of process is not independent of each other, but acting on each other. In this paper, through research, based on a series of assumptions, we used Product-Moment Correlation Coefficient to measure serial dependence between duration variables. We also propose to regard parallel duration dependency, the common influence factors and organization management as potential variables, establishing the nonlinear structural equation model to measure parallel dependency among duration variables. Finally, this paper applies dependence measure and duration forecast considered dependence to a practical project progress network, results show that the method has good applicability and scientificity.

Study on the Method of Dependence Measure of Durations in Construction Schedule Network