Defining a Probability Distribution Function for Construction Simulation
Publication: Journal of Construction Engineering and Management
Volume 126, Issue 3
Abstract
Simulation is widely applied as a practical tool for planning and analysis in many industries. However, in the case of construction processes, it has not yet emerged from the research stage into practice. The lack of confidence in selection of a probability distribution function (PDF) for an activity duration has limited the use of simulation as a practical tool for constructors. A modified β1-β2 plane analysis by AbouRizk and Halpin revealed that most of the construction data sets they analyzed laid in the beta region. Based on research in experimental psychology, it is recommended that the subjective information used to define beta parameters include the minimum and maximum activity durations, as well as the mode and the 75th or 25th percentiles. This paper presents a method to determine a beta PDF for use in construction simulation modeling.
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Information & Authors
Information
Published In
Journal of Construction Engineering and Management
Volume 126 • Issue 3 • May 2000
Pages: 234 - 241
History
Received: Jun 7, 1999
Published online: May 1, 2000
Published in print: May 2000
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