Activity delay patterns in project networks

Alexei Vazquez, Chrysostomos Marasinou, Georgios Kalogridis and Christos Ellinas

Physica A: Statistical Mechanics and its Applications, 2024, vol. 637, issue C

Abstract: Delays in activities completion drive human projects to schedule and cost overruns. It is believed activity delays are the consequence of multiple idiosyncrasies without specific patterns or rules. Here we show that is not the case. Using data for 180 construction project schedules, we demonstrate that activity delays satisfy a universal model that we call the law of activity delays. After we correct for delay risk factors, what remains follows a log-normal distribution.

Keywords: Project networks; Activity delays; Delay risk factors; Lognormal distribution; Natural language processing; Complexity (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:637:y:2024:i:c:s0378437124000785

DOI: 10.1016/j.physa.2024.129570

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